Fishionary

A blog about fish words!

By Abigail Lynch

A blog about fish words!

Chondrichthyes

October 9, 2015 by abby
Chimaeras are a predominately deep sea branch of elasmobranchs with most found deeper than 200m (NOAA).

Chimaeras are a predominately deep sea branch of chondrichthyes with most found deeper than 200m (NOAA).

Chondrichthyes are a taxonomic class of cartilaginous fishes that encompass sharks and rays (elasmobranchs) and chimaera.  Though there are exceptions, in general, Chondrichthyes have exposed gills, no swim bladder, internal fertilization, and placoid denticles.  These characteristics differentiate them from the more evolutionarily derived branch of fishes, bony fish (Osteichthyes).

Posted in: C Tagged: chimaera, chondrichthyes, elasmobranchs, placoid denticles, placoid scale, rays, sharks

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