- precaudal pit
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the notch on the caudal peduncle just before the caudal fin. Also called caudal pit
Dictionary of ichthyology. 2009.
Dictionary of ichthyology. 2009.
List of megamouth shark specimens and sightings — This list of megamouth shark specimens and sightings is a comprehensive listing of all recorded human encounters with Megachasma pelagios , popularly known as the megamouth shark.List of megamouth sharksRecords are listed chronologically in… … Wikipedia
Goblin shark — Temporal range: 40–0 Ma … Wikipedia
River shark — Taxobox name = River sharks regnum = Animalia phylum = Chordata classis = Chondrichthyes subclassis = Elasmobranchii ordo = Carcharhiniformes familia = Carcharhinidae genus = Glyphis genus authority = Agassiz, 1843 subdivision ranks = Species… … Wikipedia
Squalidae — Temporal range: Upper Cretaceous–Recent … Wikipedia
Ganges shark — Taxobox name = Ganges shark status = CR status system = iucn2.3 regnum = Animalia phylum = Chordata classis = Chondrichthyes subclassis = Elasmobranchii ordo = Carcharhiniformes familia = Carcharhinidae genus = Glyphis species = G. gangeticus… … Wikipedia
Grey nurse shark — Taxobox name = Grey nurse shark status = VU trend = unknown status system = iucn2.3 image width = 250px regnum = Animalia phylum = Chordata classis = Chondrichthyes subclassis = Elasmobranchii ordo = Lamniformes familia = Odontaspididae genus =… … Wikipedia
Spurdog — Taxobox name = Spurdogs fossil range = Campanian to Present [cite journal last = Sepkoski first = Jack authorlink = coauthors = title = A compendium of fossil marine animal genera (Chondrichthyes entry) journal = Bulletins of American… … Wikipedia
Sicklefin lemon shark — Conservation status … Wikipedia
Outline of sharks — A great white shark at Isla Guadalupe, Mexico Sharks (superorder Selachimorpha) are a type of fish with a full cartilaginous skeleton and a highly streamlined body. The earliest known sharks date from more than 420 million years ago, before the… … Wikipedia
snake — snakelike, adj. /snayk/, n., v., snaked, snaking. n. 1. any of numerous limbless, scaly, elongate reptiles of the suborder Serpentes, comprising venomous and nonvenomous species inhabiting tropical and temperate areas. 2. a treacherous person; an … Universalium