Malacoctenus is a genus of labrisomid blennies native to the eastern Pacific Ocean and the Atlantic Ocean.
Malacoctenus boehlkei, the Diamond blenny, is a species of labrisomid blenny native to the central western Atlantic Ocean and the Caribbean Sea where it is an inhabitant of coral reefs at depths of from 5 to 70 metres. This species can reach a length of 6.4 centimetres (2.5 in) TL. The specific name honour the ichthyologist James E. Böhlke (1930-1982), of the Academy of Natural Sciences of Philadelphia.
Xenomedea rhodopyga, common name the redrump blenny, is a species of labrisomid blenny endemic to the Gulf of California. It inhabits weed-covered rocky reefs and tide pools and can be found from very shallow waters to a depth of 8 metres (26 ft). This species can reach a length of 6.5 centimetres (2.6 in) TL.
Gobioclinus bucciferus, the Puffcheek blenny, is a species of labrisomid blenny native to the western Atlantic Ocean and the Caribbean Sea. It can be found on reefs, seagrass beds and in algal mats along rubble or rocky shores down to a depth of 5 metres (16 ft). This species can reach a length of 9 centimetres (3.5 in) TL. This species can also be found in the aquarium trade.
Labrisomus nuchipinnis, the hairy blenny, is a species of labrisomid blenny native to the Atlantic Ocean from the coast of the Americas to the African coast. This species prefers areas that give them crevices and holes to shelter in such as areas with rock or rubble substrates, reefs or beds of seagrass. They can be found in shallow water only a few centimeters deep to a depth of 10 metres (33 ft) though they are much rarer deeper than 5 metres (16 ft). Carnivorous, they prey on such animals as crustaceans, gastropods, echinoderms such as urchins and brittle stars, polychaete worms and other fishes. This species can reach a length of 23 centimetres (9.1 in) TL. They can also be found in the aquarium trade.
Malacoctenus africanus is a species of labrisomid blenny endemic to the waters around the islands of Goree and N'Gor off the coast of Senegal. This species prefers areas with rocky substrates in shallow waters. It can reach a length of 7.3 centimetres (2.9 in) TL.
Malacoctenus tetranemus, the throatspotted blenny or chameleon clinid, is a species of labrisomid blenny native to the Pacific coast of the Americas from the Gulf of California to Peru as well as around the Galapagos Islands. It inhabits rocky areas where it lives in tide pools and shallows generally at depths of from 6 to 23 metres. This species can reach a length of 7.5 centimetres (3.0 in) TL.
Malacoctenus aurolineatus, the Goldline blenny, is a species of labrisomid blenny native to the western Atlantic Ocean, including the Gulf of Mexico and the Caribbean Sea from southern Florida to northern South America. It inhabits rock and coral reefs at depths of from very shallow waters to about 5 metres (16 ft). It prefers living in the vicinity of sea urchins. This species can reach a length of 6 centimetres (2.4 in) TL.
Malacoctenus gilli, the dusky blenny, is a species of labrisomid blenny native to the Atlantic Ocean including the Gulf of Mexico and the Caribbean Sea from the Bahamas to the north coast of South America. This species inhabits reef patches, areas of sandy substrates with available rocks and beds of seagrass at depths of from 1 to 5 metres. It can reach a length of 7.6 centimetres (3.0 in) TL. The person honoured in the patronym of this species was not identified by Steindachner but it is most probably the American ichthyologist Theodore Nicholas Gill (1837-1914), the authority for the generic name Malacoctenus.
Malacoctenus costaricanus is a species of labrisomid blenny only known from the Pacific coast of Costa Rica and El Salvador.
Malacoctenus delalandii is a species of labrisomid blenny native to the Atlantic Ocean and the Caribbean Sea from Guatemala to Brazil. This species is an inhabitant of coral reefs being found in sandy areas and around beds of the seagrass Thalassia testudinum. It can reach a length of 8.2 centimetres (3.2 in) TL. The specific name honours the French explorer and naturalist Pierre Antoine Delalande (1787-1823), who collected the type.
Malacoctenus ebisui, the Fishgod blenny, is a species of labrisomid blenny native to the Pacific coast of the Americas from the Gulf of California to Panama. This species can reach a length of 6.5 centimetres (2.6 in) TL. The specific name refers to Ebisu, a Japanese god of fishermen, as does the common name.
Malacoctenus gigas, the Sonora blenny, is a species of labrisomid blenny endemic to the Gulf of California. It is a shallow water species inhabiting patches of seaweed on reefs. This species can reach a length of 13 centimetres (5.1 in) TL.
Malacoctenus hubbsi, the redside blenny, is a species of labrisomid blenny native to the Gulf of California extending to the Pacific coast of southern Baja California. It is found in rocky areas at depths of from 1 to 4 metres. This species can reach a length of 9 centimetres (3.5 in) TL. The specific name honours the American ichthyologist Clark Hubbs (1921-2008).
Malacoctenus triangulatus, the saddled blenny, is a species of labrisomid blenny fish native to the Atlantic Ocean as well as the Gulf of Mexico and the Caribbean Sea from southern Florida to the coast of Brazil. It inhabits rocky shores and reefs at depths of from near the surface to 40 metres (130 ft) though most common shallower than 3 metres (9.8 ft). This species can reach a length of 7.5 centimetres (3.0 in) TL. It can also be found in the aquarium trade.
Malacoctenus versicolor, the Barfin blenny, is a species of labrisomid blenny native to the western Atlantic Ocean and the Caribbean Sea from southern Florida through the Antilles. It is an inhabitant of coral reefs preferring areas of rock or sand at depths of from near the surface to 7 metres (23 ft). This species can reach a length of 7.6 centimetres (3.0 in) TL.
Malacoctenus zacae, the Zaca blenny, is a species of labrisomid blenny native to the Pacific coast of Mexico from Baja California to Acapulco. This species can reach a length of 6.5 centimetres (2.6 in) TL.
Malacoctenus zonifer, the glossy blenny, is a species of labrisomid blenny native to the Pacific coast of Mexico from the south of the Gulf of California to Oaxaca. This species can reach a length of 8 centimetres (3.1 in) TL.
Malacoctenus zonogaster, the Belted blenny, is a species of labrisomid blenny native to the Pacific coast of the Americas from Baja California to Peru including the Galapagos Islands. It is an inhabitant of tide pools and rocky shores being found from near the surface to 5 metres (16 ft). This species can reach a length of 8.5 centimetres (3.3 in) TL.
Paraclinus marmoratus, the Marbled blenny, is a species of labrisomid blenny native to the western Atlantic Ocean including the Gulf of Mexico and the Caribbean Sea from southern Florida to Venezuela. This species can be found in shallow waters down to a depth of about 6 metres (20 ft) on coral reefs and in sea grass beds. It seems to show a particular association with the sponge Verongia fistularis. This species can reach a length of 10 centimetres (3.9 in) TL. It can also be found in the aquarium trade.
