DiverDex Species Dex
Explore the diverse life beneath the waves.

African Pompano
Alectis ciliaris
Famous for the long, thread-like filaments on its fins when young.

Almaco Jack
Seriola rivoliana
A deep-bodied amberjack with a dark diagonal band through the eye.

Arrow Stargazer
Astroscopus y-graecum
Buries itself in sand and can deliver an electric shock from its head.

Atlantic Bumper
Chloroscombrus chrysurus
A small, silvery schooling fish with a black spot on the tail base.

Atlantic Creolefish
Paranthias furcifer
A unique grouper that swims in open water and has a deeply forked tail.

Atlantic Flyingfish
Cheilopogon melanurus
Known for its oversized pectoral fins used for gliding.

Atlantic Spadefish
Chaetodipterus faber
A disc-shaped fish with bold black vertical bands.

Atlantic Tripletail
Lobotes surinamensis
Looks like it has three tails due to its large dorsal and anal fins; often floats like a leaf.

Atlantic Trumpetfish
Aulostomus maculatus
A long, tubular fish that often hides by swimming vertically next to sea fans.

Balloonfish
Diodon holocanthus
Similar to the larger porcupinefish but with longer spines.

Balyhoo
Hemiramphus saltator
Recognizable by having the lower jaw much longer than the upper.

Banded Butterflyfish
Chaetodon striatus
Identified by several dark vertical bars.

Banded Jawfish
Opistognathus robinsi
Identified by a distinct dark spot on its dorsal fin and burrowing habits.

Banded Sea Star
Luidia alternata
Features dark bands across its arms and inhabits sandy or muddy bottoms.

Bandedarm Brittle Star
Ophionereis reticulata
Easily recognized by the dark rings or bands around its thin arms.

Bandtail Puffer
Sphoeroides spengleri
Identified by a row of dark spots along its lower side.

Bank Butterflyfish
Prognathodes aya
With a distinct dark diagonal band across its yellow-white body.

Bank Sea Bass
Centropristis ocyurus
A small predator found on sandy or shell-covered bottoms.

Bar Jack
Caranx ruber
Often identified by a dark stripe running along the back and tail.

Barred Hamlet
Hypoplectrus puella
Features dark brown vertical bars on a yellowish-white body.

Beaded Sea Star
Astropecten articulatus
Has a classic star shape with beaded margins, often found in coastal waters.

Bearded Toadfish
Sanopus barbatus
Known for the fleshy "beard" of tentacles around its mouth.

Belted Sandfish
Serranus subligarius
A tiny bass with a dark "belt" around its midsection.

Bermuda Chub
Kyphosus sectatrix
A gray, oval-shaped fish commonly seen hovering over coral reefs.

Bicolor Damsel
Stegastes partitus
A small reef fish with a dark front and a lighter tail section.

Bigeye
Priacanthus arenatus
A nocturnal predator with a bright red body and highly reflective eyes.

Bighead Searobin
Prionotus tribulus
Characterized by its large, armored head and wing-like pectoral fins.

Black Durgeon
Melichthys niger
Appears completely black until light reveals green and blue patterns.

Black Grouper
Mycteroperca bonaci
A large predator with rectangular dark blotches on its sides.

Black Grunt
Haemulon bonariense
Identified by the dark, wavy lines on its silvery-gray body.

Black Hamlet
Hypoplectrus nigricans
A solid dark-blue to black fish found in reef environments.

Black Jack
Caranx lugubris
Typically found in deep reef waters with a dark olive to black body.

Black Margate
Anisotremus surinamensis
The largest of the grunts, with a dark patch behind the pectoral fin.

Black Sea Bass
Centropristis striata
An important commercial fish with a stout body and dark scales.

Blackbar Soldierfish
Myripristis jacobus
Identified by a bold black vertical bar behind the head.

Blackcap Basslet
Gramma melacara
A deep-water beauty with a purple body and a black cap on its head.

Blackear Bass
Serranus cabrilla
A common Mediterranean and Atlantic bass with longitudinal stripes.

Blackfin Snapper
Lutjanus buccanella
Has a distinctive dark spot at the base of the pectoral fins.

Blacktip Shark
Carcharhinus limbatus
Known for the black tips on its fins and its energetic jumping behavior.

Blue Angelfish
Holacanthus bermudensis
Lacks the crown; found in the Western Atlantic.

Blue Chromis
Chromis cyanea
A vibrant, electric-blue fish often seen in schools above the reef.

Blue Hamlet
Hypoplectrus gemma
A solid bright-blue fish that mimics the Blue Chromis.

Blue Parrotfish
Scarus coeruleus
A large, uniform light-blue fish with a large beak for scraping algae.

Blue Runner
Caranx crysos
A schooling fish common in coastal and offshore waters.

Blue Tang
Paracanthurus hepatus
Vibrant blue tang with a black palette-like shape and yellow tail.

Bluehead Wrasse
Thalassoma bifasciatum
Terminal males have a blue head, black bars, and a green body.

Bluespotted Cornetfish
Fistularia tabacaria
Extremely long and thin, with a whip-like filament on its tail.

Bluestripe Grunt
Haemulon sciurus
Features horizontal blue stripes over a golden-yellow body.

Bluewing Searobin
Prionotus rubio
Known for its dark, expansive pectoral fins used for display.

Boga
Haemulon vittatum
A slender, schooling grunt often found in open water near reefs.

Bonefish
Albula vulpes
A fast-swimming species that inhabits shallow sand and mud flats.

Bottlenose Dolphin
Tursiops truncatus
Highly intelligent and the most well-known dolphin species.

Brassy Chub
Kyphosus vaigiensis
A schooling fish with a distinctive brassy or yellowish sheen.

Bridled Burrfish
Chilomycterus antennatus
Has fleshy "antennae" or tentacles above its eyes.

Brown Garden Eel
Heteroconger longissimus
Lives in large colonies in the sand, swaying like grass in the current.

Buffalo Trunkfish
Lactophrys trigonus
A heavy-bodied armored fish with a triangular cross-section.

Bull Shark
Carcharhinus leucas
Famous for its ability to thrive in both saltwater and freshwater.

Butter Hamlet
Hypoplectrus unicolor
A pale, yellowish fish with a dark spot on the snout.

Caesar Grunt
Haemulon carbonarium
Has silvery scales and distinct dark horizontal stripes.

Caribbean Puffer
Sphoeroides greeleyi
A small pufferfish found in shallow coastal and estuarine waters.

Caribbean Reef Shark
Carcharhinus perezii
The most common shark seen by divers on Caribbean reefs.

Caribbean Whiptail Stingray
Himantura schmardae
A large, dark ray with an extremely long, whip-like tail.

Cero
Scomberomorus regalis
Marked by a bronze stripe and lines of yellow spots.

Chain Moray Eel
Echidna catenata
Has a dark body with yellow, chain-like markings; feeds mostly on crabs.

Checkered Puffer
Sphoeroides testudineus
Common in mangroves, featuring a honeycomb or checkered back pattern.

Cherubfish
Centropyge argi
A tiny, deep-blue pygmy angelfish with a bright yellow or orange face.

Chola Guitarfish
Rhinobatos productus
Looks like a mix between a shark and a ray with a pointed snout.

Cobia
Rachycentron canadum
A powerful, streamlined fish often found around buoys and shipwrecks.

Cocoa Damsel
Stegastes variabilis
Brownish with a dark spot on the dorsal fin and tail base.

Coconut Octopus
Amphioctopus marginatus
Known for using coconut shells or tool-like objects for shelter.

Common Comet Sea Star
Linckia guildingi
Known for its ability to regenerate an entire body from a single arm.

Common Snook
Centropomus undecimalis
A popular game fish with a distinct black lateral line.

Coney
Cephalopholis fulva
A small grouper that can change color from bicolor to bright red or yellow.

Conical Spined Sea Star
Echinaster sentus
A small reef star with distinct cone-shaped spines on its surface.

Cottonmouth Jack
Uraspis secunda
Named for the white color inside its mouth.

Creole Wrasse
Clepticus parrae
A schooling wrasse that feeds on plankton in the water column.

Crevalle Jack
Caranx hippos
A powerful predator with a distinctive black spot on the gill cover.

Cubera Snapper
Lutjanus cyanopterus
The largest of the snappers, known for its massive size and strong teeth.

Cushion Sea Star
Oreaster reticulatus
A massive, heavy-bodied starfish with a thick, puffed-up center.

Day Octopus
Octopus cyanea
A large, complexly camouflaged octopus active during daylight hours.

Doctorfish
Acanthurus chirurgus
Recognized by dark vertical bars on its sides.

Dog Snapper
Lutjanus jocu
Named for its large, canine-like teeth visible even when its mouth is closed.

Dolphinfish
Coryphaena hippurus
A fast-swimming predatory fish with iridescent colors.

Dusky Damsel
Stegastes adustus
A dark, aggressive little fish that guards its algae patch fiercely.

Dusky Squirrelfish
Sargocentron vexillarium
Often found hiding in dark reef crevices during the day.

Dwarf Wrasse
Doratonotus megalepis
A tiny, green wrasse that perfectly mimics a leaf of seagrass.

Flame Angelfish
Centropyge loriculus
A popular, bright orange-red pygmy angelfish with black vertical stripes.

Flat Needlefish
Ablennes hians
Known for its laterally compressed body and bluish-green color.

Florida Barred Hamlet
Hypoplectrus floridae
A color variant found in specific regions of the Gulf and Florida.

Flying Gurnard
Dactylopterus volitans
Has massive, wing-like fins with blue edges used to startle predators.

Foureye Butterflyfish
Chaetodon capistratus
Features a large black spot near the tail to mimic an eye.

French Angelfish
Pomacanthus paru
Usually seen in pairs.

French Grunt
Haemulon flavolineatum
Recognized by its bright yellow diagonal stripes and social behavior.

Gag
Mycteroperca microlepis
A gray-brown fish with a "kiss" pattern on its scales.

Gaudy Brittle Star
Ophioderma cinereum
A large brittle star with intricate gray and white patterns.

Giant Basket Star
Gorgonocephalus
Has massive, complexly branching arms used to filter-feed at night.

Giant Manta Ray
Mobula birostris
A massive filter-feeder with wingspans reaching up to 7 meters.

Glass Eye
Heteropriacanthus cruentatus
Has a silver-mottled red body and inhabits shallow reefs.

Glassy Sweeper
Pempheris schomburgkii
A semi-transparent, nocturnal fish that schools in caves and shadows.

Golden Hamlet
Hypoplectrus gummigutta
A rare, bright golden-orange fish with a black mask.

Goldenstriped Soapfish
Grammistes sexlineatus
Produces a toxic mucus when stressed; has yellow stripes.

Goldentail Moray
Gymnothorax miliaris
A smaller eel with a dark body covered in tiny gold or yellow spots.

Goldface Toby
Canthigaster figueiredoi
A regional variant with slightly different line patterns.

Goldspotted Eel
Myrichthys ocellatus
A snake-like eel with bright yellow spots on a tan or green body.

Goliath Grouper
Epinephelus itajara
A massive fish that can grow to over 400kg, often found in wrecks.

Grass Porgy
Calamus arctifrons
A smaller porgy often found in seagrass beds and shallow coastal waters.

Gray Angelfish
Pomacanthus arcuatus
Known for its uniform gray color and long, trailing dorsal and anal fins.

Gray Snapper
Lutjanus griseus
A versatile predator found in mangroves and reefs.

Gray Triggerfish
Balistes capriscus
A tough-skinned fish known for its ability to bite through hard shells.

Graysby
Cephalopholis cruentata
A small grouper covered in reddish-brown spots and four spots along the back.

Great Barracuda
Sphyraena barracuda
A formidable predator with a long body and sharp, prominent teeth.

Great Hammerhead
Sphyrna mokarran
The largest species of hammerhead, featuring a very tall dorsal fin.

Greater Amberjack
Seriola dumerili
The largest of the amberjacks, known as a strong fighter.

Greater Blue Ringed Octopus
Hapalochlaena lunulata
Small but deadly, showing blue rings when threatened.

Greater Soapfish
Rypticus saponaceus
Has a skin that feels soapy due to a protective mucus layer.

Green Moray
Gymnothorax funebris
A large, powerful eel with a thick layer of yellow mucus over blue skin.

Green Razorfish
Xyrichtys splendens
Has a very compressed body for diving into the sand when threatened.

Green Turtle
Chelonia mydas
A large herbivorous turtle named for the green color of its fat.

Hairy Blenny Complex
Labrisomus nuchipinnis
Named for the tuft of "hairs" (cirri) on the nape of its neck.

Harlequin Bass
Serranus tigrinus
A small, elongated fish with a striking black-and-white tiger pattern.

Harlequin Pipefish
Corythoichthys schultzi
A slender reef-dweller with reddish-brown markings.

Harvestfish
Peprilus paru
Characterized by a deep, round body and lacking pelvic fins.

Hawksbill Turtle
Eretmochelys imbricata
Critically endangered, prized for its beautiful "tortoise-shell" pattern.

Highhat
Pareques acuminatus
A small fish with several dark horizontal stripes and a high dorsal fin.

Hogfish
Lachnolaimus maximus
Known for its long, pig-like snout and three long dorsal fin spines.

Honeycomb Cowfish
Acanthostracion polygonius
Covered in a striking hexagonal pattern of dark lines.

Horse Eye Jack
Caranx latus
Known for its large eyes and yellow tail fin.

Houndfish
Tylosurus crocodilus
The largest of the needlefish, capable of leaping out of the water.

Indigo Hamlet
Hypoplectrus indigo
Striking fish with blue and white vertical bands.

Island Frogfish
Antennarius sanguineus
A small, reddish frogfish often found in rocky reef crevices.

Jackknife Fish
Equetus lanceolatus
Recognized by the vertical black-and-white ribbon-like shape.

Jolthead Porgy
Calamus bajonado
The largest of the porgies, often found in rocky or coral areas.

Keeltail Needlefish
Platybelone argalus
A very slender fish with long, beak-like jaws.

King Mackerel
Scomberomorus cavalla
A large migratory species important for commercial and sport fishing.

Laced Moray Eel
Gymnothorax favagineus
A large eel with a striking leopard-like or honeycomb pattern.

Ladyfish
Elops saurus
A slender, silvery fish that frequently leaps when hooked.

Lancer Dragonet
Callionymus bairdi
A bottom-dweller with a long, elegant first dorsal spine.

Lane Snapper
Lutjanus synagris
Features yellow horizontal stripes and a distinct black spot on the side.

Lantern Bass
Serranus baldwini
Has a row of dark blotches along the lower side of its body.

Leatherback Sea Turtle
Dermochelys coriacea
The largest turtle, which lacks a hard shell, having a leathery skin.

Lemon Shark
Negaprion brevirostris
Named for its yellowish tint; often found in mangroves and shallow bays.

Leopard Searobin
Prionotus scitulus
A slender sea robin with a spotted body pattern.

Leopard Toadfish
Opsanus pardus
A predatory bottom-dweller with a spotted pattern and loud "grunting" sounds.

Lesser Electric Ray
Narcine bancroftii
Can produce an electric discharge to defend itself or stun prey.

Lined Sea Star
Luidia clathrata
Distinguished by a dark line running down the center of each of its five arms.

Lined Seahorse
Hippocampus erectus
A vertical swimmer with a prehensile tail and variable coloration.

Little Tunny
Euthynnus alletteratus
The most common tuna in the Atlantic, marked by wavy lines on its back.

Loggerhead Turtle
Caretta caretta
Known for its large head and powerful jaws to crush shells.

Longfin Damsel
Stegastes diencaeus
Highly territorial and usually dark brown or black as an adult.

Longlure Frogfish
Antennarius multiocellatus
Uses a specialized dorsal spine as a fishing lure to attract prey.

Longsnout Butterflyfish
Prognathodes aculeatus
Specialized for reaching prey in reef crevices.

Longsnout Seahorse
Hippocampus reidi
A slender seahorse often found clinging to gorgonians or seagrass.

Longspine Squirrelfish
Holocentrus rufus
Has a very long, white-tipped spine on the dorsal fin.

Lookdown
Selene vomer
An extremely thin, silvery fish with a high, flat forehead.

Maculated Flounder
Bothus maculiferus
A small flatfish that blends perfectly with sandy ocean floors.

Mahogany Snapper
Lutjanus mahogoni
Identified by a dark spot on the lateral line and a reddish tint.

Marbled Grouper
Dermatolepis inermis
Has a distinct mottled or marbled appearance, often secretive.

Margintail Conger
Conger triporiceps
A large, gray eel found in rocky areas and deep reefs.

Masker Hamlet
Hypoplectrus provacator
A specific color morph with a blue face and yellow-tan body.

Midnight Parrotfish
Scarus coelestinus
Identified by its deep navy blue color and bright blue markings.

Mimic Cardinalfish
Apogon pseudomaculatus
A small red fish with two distinct black spots on its side.

Mimic Octopus
Thaumoctopus mimicus
Famous for impersonating other sea creatures like lionfish and snakes.

Misty Grouper
Hyporthodus mystacinus
A large, deep-water species with dark vertical bands.

Mosaic Octopus
Callistoctopus ornatus
Features complex, regular patterns and long, slender arms.

Mottled Sea Star
Linckia multifora
Has a variegated color pattern and is common in Indo-Pacific reefs.

Moustache Jawfish
Opistognathus macrognathus
A secretive burrower with a large mouth and mottled brown coloration.

Mushroom Scorpionfish
Scorpaena histrio
A master of camouflage with fleshy skin flaps to mimic algae.

Mutton Hamlet
Alphestes afer
A secretive reef fish with a mottled olive-brown pattern.

Mutton Snapper
Lutjanus analis
Features a small black spot on the back and reddish fins.

Nassau Grouper
Epinephelus striatus
An endangered fish with five dark bars and a "tuning fork" mark on its head.

Night Seargeant
Abudefduf taurus
Larger and more drab than the Sergeant Major, found in rocky shallows.

Nine Armed Sea Star
Luidia senegalensis
A large starfish with nine long, tapered arms found in sandy areas.

Northern Searobin
Prionotus carolinus
Has "walking" rays on its fins to feel for food on the seabed.

Nurse Shark
Ginglymostoma cirratum
A bottom-dwelling shark with barbels and a docile nature.

Ocean Sunfish
Mola mola
The heaviest bony fish in the world, featuring a unique, truncated body.

Ocean Surgeonfish
Acanthurus tractus
Known for its uniform color and sharp "scalpel" at the tail base.

Ocean Triggerfish
Canthidermis sufflamen
A large, brownish-gray triggerfish often found in open water or near drop-offs.

Ocellated Frogfish
Fowlerichthys ocellatus
Features three distinct eye-spots on its tail and dorsal area.

Orange Filefish
Aluterus schoepfii
Often has an orange tint and small orange spots on a gray body.

Orange Ridged Sea Star
Echinaster spinulosus
Features distinct ridges and a vibrant orange-to-brown color.

Painted Wrasse
Halichoeres caudalis
Often found on rubble or sandy bottoms near deep reefs.

Palometa
Trachinotus goodei
Characterized by long dorsal and anal fins and dark vertical bars.

Peacock Flounder
Bothus lunatus
A flatfish capable of impressive camouflage with blue ring-like spots.

Pearly Razorfish
Xyrichtys novacula
A wide-ranging species that inhabits open sandy areas.

Peppermint Basslet
Liopropoma rubre
A colorful, shy fish with horizontal red and white stripes.

Permit
Trachinotus falcatus
A deep-bodied game fish highly prized by saltwater anglers.

Pilotfish
Naucrates ductor
Famous for swimming alongside sharks and large rays.

Planehead Filefish
Stephanolepis hispida
Has a rough, sandpaper-like skin and a prominent dorsal spine.

Plumed Scorpionfish
Scorpaena grandicornis
Typically found in seagrass beds with large tentacles above the eyes.

Porkfish
Anisotremus virginicus
Easily identified by its bright yellow body and two bold black vertical bars.

Princess Parrotfish
Scarus taeniopterus
Very similar to the Striped Parrotfish but with blue fin borders.

Puddingwife
Halichoeres radiatus
A large wrasse with a greenish-blue body and pale bars.

Purple Reeffish
Chromis scotti
A deep-blue to purple fish found on deeper reef slopes.

Purplemouth Moray
Gymnothorax vicinus
Known for the purplish tint inside its mouth and yellow eyes.

Queen Angelfish
Holacanthus ciliaris
Stunning blue and yellow fish with a distinctive "crown" on its forehead.

Queen Parrotfish
Scarus vetula
Known for the brilliant blue-green markings around its mouth.

Queen Triggerfish
Balistes vetula
One of the most beautiful triggerfish, with sweeping fins and blue lines.

Quillfin Blenny
Parablennius marmoreus
A small, bottom-dwelling fish with branched cirri above its eyes.

Rainbow Parrotfish
Scarus guacamaia
The largest Atlantic parrotfish, showing green, orange, and bronze.

Rainbow Runner
Elagatis bipinnulata
A streamlined pelagic fish with blue and yellow stripes.

Rainbow Wrasse
Halichoeres pictus
A slender reef wrasse with colorful, intricate markings.

Red Grouper
Epinephelus morio
A brownish-red fish with a straight-edged dorsal fin.

Red Hind
Epinephelus guttatus
A common reef grouper covered in small red spots with dark-edged fins.

Red Lionfish
Pterois volitans
An invasive species with beautiful but highly venomous fan-like fins.

Red Porgy
Pagrus pagrus
A pinkish-red fish found in deep waters, highly valued for its flavor.

Red Serpent Star
Ophiomaza cacaotica
A smooth-skinned brittle star with a striking red-to-dark pattern.

Red Snapper
Lutjanus campechanus
A highly iconic and commercially important deep-water reef fish.

Red Thorny Sea Star
Echinaster echinophorous
Bright red with small blunt spines, common in the Caribbean.

Redband Parrotfish
Sparisoma aurofrenatum
Features a small white spot behind the dorsal fin.

Redfin Needlefish
Strongylura notata
Often found in shallow coastal and brackical waters.

Redspotted Hawkfish
Amblycirrhitus pinos
Sits on coral branches using its pectoral fins as "arms."

Redtail Parrotfish
Sparisoma chrysopterum
Has a distinctive reddish hue on its tail and underside.

Reef Butterflyfish
Chaetodon sedentarius
With two dark vertical bands, one through the eye and one at the tail.

Reef Parrotfish
Sparisoma viride
Named for the bright yellow spot near the tail in terminal males.

Reef Squirrelfish
Sargocentron coruscum
A small, red nocturnal fish with white stripes.

Reticulated Brittle Star
Ophionereis reticulata
Features a "net-like" pattern on its central disc.

Rock Beauty
Holacanthus tricolor
Juveniles look very different with a blue-edged spot.

Rock Hind
Epinephelus adscensionis
Marked with small reddish-brown spots and pale blotches for camouflage.

Rosy Razorfish
Xyrichtys martinicensis
Known for its pinkish hue and sand-dwelling behavior.

Ruby Brittle Star
Ophioderma rubicundum
Features a deep red coloration and long, flexible arms.

Saddle Bass
Serranus notospilus
Characterized by dark saddle-like marks along its back.

Saddled Parrotfish
Scarus iseri
Social fish often seen in small groups over seagrass or reefs.

Sailors Choice
Haemulon parra
A silvery fish with dark spots on the scales forming broken lines.

Sand Diver
Synodus intermedius
A lizardfish that buries itself in sand, leaving only its eyes exposed.

Sand Perch
Diplectrum formosum
Features blue lines on its head and a double-lobed tail fin.

Sand Tiger Shark
Carcharias taurus
Has a fierce look due to its protruding teeth but is generally calm.

Sand Tilefish
Malacanthus plumieri
Builds large mounds of rubble and sand to use as a retreat.

Sandbar Shark
Carcharhinus plumbeus
Identified by its very high first dorsal fin and brownish-gray color.

Sargassum Triggerfish
Xanthichthys ringens
Lives in deeper reefs and is marked by rows of dark spots.

Saucereye Porgy
Calamus calamus
Identified by a bluish area below its large eyes and a silvery body.

Scalloped Hammerhead
Sphyrna lewini
A large shark with a distinctively notched, hammer-shaped head.

Scamp
Mycteroperca phenax
A lighter-colored grouper with small reddish-brown spots.

School Bass
Serranus psittacinus
A small predator often found near the base of coral heads.

Schoolmaster
Lutjanus apodus
Yellow-finned snapper that often forms large, stationary groups.

Scrawled Cowfish
Acanthostracion quadricornis
An armored fish with two "horns" above the eyes and blue scrawled lines.

Scrawled Filefish
Aluterus scriptus
A long, thin fish covered in beautiful blue lines and black spots.

Seargeant Major
Abudefduf saxatilis
A bold fish with five black vertical bars on a yellow/silvery body.

Sennet
Sphyraena borealis
A smaller, schooling relative of the Great Barracuda.

Sharksucker
Echeneis naucrates
The most common remora, often seen attached to large marine hosts.

Sharpnose Puffer
Canthigaster rostrata
A small puffer with a blue-spotted face and toxic skin.

Sharptail Eel
Myrichthys breviceps
Has a dark body with pale yellow spots and a very pointed tail.

Sheepshead
Archosargus probatocephalus
Famous for its human-like teeth used to crush shells and its vertical black bars.

Sheepshead Porgy
Calamus penna
A silvery reef fish with a blunt snout and molar-like teeth.

Short Bigeye
Pristigenys alta
A deep-water fish with an extremely deep, red body and huge eyes.

Short-finned Pilot Whale
Globicephala macrorhynchus
A large, social mammal with a bulbous forehead and dark skin.

Shortfin Pipefish
Cosmocampus elucens
A long, thin relative of the seahorse with a reduced tail fin.

Shy Hamlet
Hypoplectrus guttavarius
Features a yellow face and fins with a dark "saddle" on the back.

Silky Shark
Carcharhinus falciformis
Named for the smooth texture of its skin; found in open oceanic waters.

Slender Filefish
Monacanthus tuckeri
A tiny, well-camouflaged fish that hides among gorgonians.

Slippery Dick
Halichoeres bivittatus
A common, small wrasse with two dark horizontal stripes.

Smallmouth Grunt
Haemulon chrysargyreum
A slender grunt with straight yellow horizontal stripes.

Smooth Trunkfish
Lactophrys triqueter
A dark fish covered in white spots, lacking spines.

Snow Bass
Serranus atrobranchus
Identified by a small, prominent black spot on the gill cover.

Snowy Grouper
Hyporthodus niveatus
A deep-water fish with small white spots arranged in a grid.

Southern Puffer
Sphoeroides nephelus
Has a dark, mottled back and is capable of inflating its body.

Southern Stingray
Hypanus americanus
A diamond-shaped ray often found buried in sandy bottoms.

Spanish Grunt
Haemulon macrostomum
Features a larger mouth and dark stripes that extend into the fins.

Spanish Hogfish
Bodianus rufus
A colorful reef fish with a purple top and yellow bottom.

Spinner Dolphin
Stenella longirostris
Famous for its acrobatic leaps and spinning out of the water.

Spiny Brittle Star
Ophiocoma echinata
Has long, prominent spines on its arms and a dark, robust body.

Splendid Toadfish
Sanopus splendidus
A rare, brightly striped fish endemic to the reefs of Cozumel.

Sponge Brittle Star
Ophiothrix suensonii
Lives almost exclusively inside or on the surface of sponges.

Spotfin Burrfish
Chilomycterus reticulatus
Has short, fixed spines and a pattern of small black spots.

Spotfin Butterflyfish
Chaetodon ocellatus
Characterized by a small black spot on the dorsal fin.

Spotfin Hogfish
Bodianus pulchellus
Red body with a white horizontal stripe and a yellow tail.

Spotfin Jawfish
Opistognathus signatus
A small, dark-colored jawfish that inhabits rubble areas near reefs.

Spotted Drum
Equetus punctatus
Famous for its incredibly long dorsal fin and black spots on the tail.

Spotted Eagle Ray
Aetobatus narinari
An elegant swimmer with a long snout and white spots on its back.

Spotted Goatfish
Pseudupeneus maculatus
Uses chin barbels to "taste" and probe the sand for invertebrates.

Spotted Hamlet
Hypoplectrus ecosur
A regional variety of hamlet with distinct facial markings.

Spotted Moray
Gymnothorax moringa
Has a distinctive white body covered with small brown spots.

Spotted Porcupinefish
Diodon hystrix
Covered in long spines that stand up when the fish inflates with water.

Spotted Scorpionfish
Scorpaena plumieri
Possesses venomous spines and colorful "warning" patterns under its fins.

Spotted Trunkfish
Lactophrys bicaudalis
Recognized by its white body with dark spots and two spines near the tail.

Squirrelfish
Holocentrus adscensionis
Nocturnal fish with large eyes and a reddish, spiny body.

Starry Night Octopus
Callistoctopus luteus
A bright red octopus covered in small white starry spots.

Stout Moray Eel
Gymnothorax eurostus
A robust eel with a mottled pattern of brown, white, and yellow.

Striated Frogfish
Antennarius striatus
Covered in hair-like skin growths to blend with sponges and weeds.

Striped Burrfish
Chilomycterus schoepfii
Features beautiful, wavy lines across its body and fixed spines.

Studded Sea Star
Mithrodia clavigera
Has a rough, "studded" appearance with large, knob-like tubercles.

Sunshine Fish
Chromis insolata
A small fish with a yellowish upper body that fades to silver.

Tan Hamlet
Hypoplectrus randallorum
A uniformly brownish or tan-colored hamlet.

Tarpon
Megalops atlanticus
A prehistoric-looking fish capable of breathing air and huge leaps.

Tattler Bass
Serranus phoebe
A deep-water bass with a distinctive dark diagonal band.

Tesselated Cushion Star
Culcita novaeguineae
Looks more like a round pillow or "cushion" than a star.

Threespot Damsel
Stegastes planifrons
Known for its aggression and the dark spots on its body.

Tiger Grouper
Mycteroperca tigris
Features distinct diagonal stripes similar to a tiger's pattern.

Tiger Shark
Galeocerdo cuvier
A powerful apex predator with dark, tiger-like stripes on its sides.

Tobaccofish
Serranus tabacarius
Recognized by its orange-brown color and pale horizontal band.

Topsail Chub
Kyphosus cinerascens
Similar to other chubs but with a slightly more bluish or dusky coloration.

Two Spined Sea Star
Astropecten duplicatus
A burrowing starfish with two rows of prominent spines along its edges.

Undescribed Blue Ringed Octopus
Hapalochlaena
A species of the deadly blue-ringed genus not yet named.

Undulated Moray
Gymnothorax undulatus
Features a beautiful wavy or "undulated" pattern of light lines.

Unicorn Filefish
Aluterus monoceros
A large, elongated filefish with a single spine on its forehead.

Vermillion Snapper
Rhomboplites aurorubens
A reddish snapper with a more slender profile than its relatives.

Viper Moray Eel
Enchelycore nigricans
Famous for its arched jaws that cannot fully close, showing sharp teeth.

Wahoo
Acanthocybium solandri
A prize game fish known for its incredible speed and zebra-like stripes.

Warteye Stargazer
Uranoscopus scaber
A bottom-dwelling ambush predator with upward-facing eyes and a venomous spine.

Web Burrfish
Chilomycterus antillarum
Identified by a hexagonal, web-like pattern on its skin.

Wendts Brittle Star
Ophiocoma wendtii
Famous for its light-sensing abilities that cover its entire body.

Western Comb Grouper
Mycteroperca acutirostris
Known for its elongated gill rakers and marbled pattern.

Whale Shark
Rhincodon typus
The largest fish in the sea, a filter-feeder known for its spotted skin.

White Grouper
Epinephelus aeneus
Characterized by three white lines on the sides of the head.

White Grunt
Haemulon plumierii
Known for the blue and yellow stripes only on its head and its white body.

White Margate
Haemulon album
A large, pale silvery grunt often found over sandy bottoms near reefs.

Whitefin Sharksucker
Echeneis neucratoides
Has a suction disk on its head to hitch rides on sharks and whales.

Whitenose Pipefish
Corythoichthys albirostris
Features a pale snout and intricate banded patterns on its body.

Whitespotted Filefish
Cantherhines macrocerus
Can quickly change color from brown to a white-spotted pattern.

Wonderpus
Wunderpus photogenicus
A long-armed octopus with high-contrast white and rusty-brown spots.

Wrasse Basslet
Liopropoma eukrines
A deep-water reef inhabitant with a dark horizontal stripe.

Yellow Garden Eel
Heteroconger luteolus
A slender, yellowish eel that retreats into sand burrows when approached.

Yellow Goatfish
Mulloidichthys martinicus
Often schools with Yellowtail Snappers for protection.

Yellow Jack
Carangoides bartholomaei
A silvery fish that often develops a yellow tint as it matures.

Yellow Stingray
Urobatis jamaicensis
A small, round ray with beautiful reticulated patterns.

Yellowbelly Hamlet
Hypoplectrus aberrans
Has a dark back and a bright yellow belly.

Yellowcheek Wrasse
Halichoeres cyanocephalus
A deep-water wrasse with a yellow stripe on the cheek.

Yellowfin Grouper
Mycteroperca venenosa
Identified by the bright yellow tips on its pectoral fins.

Yellowhead Jawfish
Opistognathus aurifrons
Famous for living in sand burrows and brooding eggs in its mouth.

Yellowhead Wrasse
Halichoeres garnoti
Easily identified by its bright yellow head and dark body.

Yellowmouth Grouper
Mycteroperca interstitialis
Named for the yellow coloration at the corners of its mouth.

Yellowtail Damsel
Microspathodon chrysurus
Adults are dark with a bright yellow tail; juveniles have blue spots.

Yellowtail Hamlet
Hypoplectrus chlorurus
A dark-bodied fish with a contrasting bright yellow tail.

Yellowtail Parrotfish
Sparisoma rubripinne
Characterized by a dull body and a contrasting yellow tail.

Yellowtail Reeffish
Chromis enchrysurus
A deep-water chromis with a dark body and bright yellow tail.

Yellowtail Snapper
Ocyurus chrysurus
A fast swimmer with a brilliant yellow stripe from snout to tail.