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Blacktip reef sharks have silvery-gray dorsal sides and white bellies. Eluded to in their name, these reef sharks have dark black...
Bladdertipped anemones have smooth bases that are usually brown, green or red in color. These anemones are commonly found in shallow...
Blonde naso tangs range in color from pale gray to dark charcoal. Their sharp, retractable spines act as natural defenses against...
Blue chromis are primarily blue in color with a dark stripe near their dorsal fin, large black eyes and a forked tail. Blue chromis...
Blue parrotfish are pale as juveniles and deeper blue as adults. Large males have a pronounced forehead hump. They scrape algae...
Blue razorfish have rounded, blunt faces and strong jaws for crushing shelled prey. At the top of their head, they have a spine...
These fish can be bluish, greenish or silver-gray, often with dark mottling. Their tail is slightly forked. They feed on zooplankton,...
Blue runners are olive green, though they can have a bluish-silver sheen, which likely inspired their name. They have a silvery-white...
Blue spotted rock cod are red-brown in color with small turquoise dots covering their entire body that help them blend in with...
Blue top shell snails inhabit cone-shaped spiral shells that can range in color from blue, green, brown or purple. Blue top snails...
Blueface angelfish are striking fish with various textures and patterns all over their body. These fish have a deep blue scrawled...
Bluefin killifish are small in size with soft fins. Males have blue fins with orange at the base, while females’ are translucent....
Bluegill fish get their name from the small, dark blue dot that sits on their gills. They’re golden yellow in color with...
As their name suggests, bluegreen chromis have iridescent scales that change from blue to green when sunlight reflects off of...
Bluehead wrasses in their final stage of life have blue heads and tails, yellow bodies and black and white stripes near their...
Blueline rabbitfish are also called masked rabbitfish because of the mask-like black line running across their face. These fish...
Bluespine unicornfish have blue-gray dorsal sides and white bellies. These fish can change the intensity of their blue hues, depending...
Bluespotted sunfish are olive green and yellow in color with small, light blue irregular spotting from their face to the base...
Bluestripe snappers have yellow bodies, white bellies and four pale blue stripes running horizontally from their face to the base...
Bluestriped grunts are bright yellow with neon blue stripes from head to tail. Their tails and dorsal fins are yellow with darker...
The star-shaped polyps of blushing star corals give them a distinct appearance, especially when the polyps extend to feed. They...
Bonnethead sharks are grayish-brown with distinctive shovel-shaped heads. During migration, they often travel in large schools,...
Bottlenose wedgefish have a similar shape to guitarfish, with a long triangular face, wide wings and large dorsal fin. Along the...
Branching frogspawn corals form colonies of extensive branching polyps. These corals are named for the resemblance of their polyps...
Bridled parrotfish get their name from the faint, bridle-like markings on their face. Males and females look different, with males...
Using their strong pectoral fins, brown banded bamboo sharks can “walk” along the ocean floor, making them uniquely mobile...
Brown chromis are largely silver/gray in color, despite their name. Male brown chromis are devoted parents, guarding their eggs...
Brush coral, also known as cauliflower coral, grows in large, branching structures that resemble cauliflower, extending from a...
Bulbnose unicornfish get their name from their rounded snouts, used in mating displays or to establish dominance over other fish....
This sea cucumber has its mouth in front and tube feet at the back that help it move through the sandy seafloor. It feeds on detritus...
Butter hamlet are pale yellow in color with darker grey shadowing at the dorsal (top) side of their body. A prominent black spot...
Calico rockfish have whitish bodies with irregular markings that help them hide from predators in rocky environments. They have...
California king crabs are able to live in a variety of environments because of their ability to adjust to changing water temperatures....
Female California sheephead look different from males. Scientists call this asexual dimorphism. Males tend to be more territorial,...
The common name “Candy cane coral” comes from the distinctive, striped pattern of their polyps, which resemble candy...
These fish are active at night and tend to hide during the day. They are red-orange with blue and purple highlights, which help...
Caribbean king crabs are highly adaptable, commonly found in warm tropical and subtropical waters, particularly around coral reefs....
Peppermint shrimp are bright red and white, which helps them camouflage on coral reefs. But don’t be fooled—they don’t taste...
Caribbean reef octopuses usually appear white with an orange and brown vein-like pattern, but they can change colors quickly....
Caribbean spiny lobsters have reddish-brown shells with occasional darker and lighter spots and spines for protection. They can...
Caribbean spiny sea stars are brown-red with small spines giving them a rough texture. They have five arms and a mouth on their...
Cheeklined wrasses have an appearance that varies depending on their age, sex and environment. Males may change their color patterns...
Cherubfish have dark purple-blue bodies with bright yellow heads.
Chocolate chip sea stars have a creamy white base and dark brown projections, resembling chocolate chips. When threatened, they...
The clonal anemone, also called the aggregating anemone or pink-tipped anemone, possesses stinging cells called nematocysts in...
Clown surgeonfish are named after the sharp, scalpel-like spines on either side of their tail, which they use for self-defense...
Clown sweetlips are known for their large, expressive lips, which is what gives them their name. Adult clown sweetlips have orange-brown...
Clownfish use a variety of vocalizations, including pops and clicks, to communicate with each other, especially in the presence...
