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molly

(Encyclopedia) molly or mollie, New World fish of the genus Poecilia, which includes the guppy or rainbow fish, Poecilia reticulata. Mollies, which are related to the killifishes, are found from the…

characin

(Encyclopedia) characincharacinkârˈəsĭn [key] or characidcharacin–sĭd [key], common name for members of the Characidae, a large and diverse family comprising 700 species of freshwater fishes. The…

toothfish

(Encyclopedia) toothfish, common name for a genus (Dissostichus) of deep-water marine ray-finned fishes found in waters off S South America to Antarctica. The Patagonian toothfish, D. eleginoides, is…

triggerfish

(Encyclopedia) triggerfish, any of several species of tropical reef fishes with laterally compressed bodies, heavy scales, and tough skins. They are named for the mechanism of the three spines of the…

seahorse

(Encyclopedia) seahorse, common name for certain small fishes of the family Syngnathidae, inhabiting warm waters but sometimes found as far north as Cape Cod. The elongated head and snout of a…

angelfish

(Encyclopedia) angelfish, common name for certain members of the Pomacanthidae, a family of brightly colored reef-dwelling tropical fishes with compressed bodies and small mouths and teeth. They were…

perch

(Encyclopedia) perch, common name for some members of the family Percidae, symmetrical freshwater fishes of N Europe, Asia, and North America. The perches belong to the large order Perciformes (spiny…

wrasse

(Encyclopedia) wrassewrasserăs [key], common name for a member of the large family Labridae, brilliantly colored fishes found among rocks and kelp in tropical seas. Wrasses, related to the…

puffer

(Encyclopedia) puffer or pufferfish, common name for some tropical marine fish of the family Tetraodontidae. The puffers and their allies, including the boxfish, the porcupinefish, the triggerfish,…

sculpin

(Encyclopedia) sculpin, common name for a member of the superfamily Cottoidea, bizarre fishes with large, spiny or armored heads and short, tapering bodies, found in both marine and freshwater…