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 | | Super-class Agnatha From the Greek a, meaning “not”, and gnathos, meaning “jaw”, the 60 known species of this super-class are known as the jawless fishes and include the hagfishes (Myxini) and lampreys (Cephalaspidomorphi). |
 | | Class - Myxini Hagfishes are entirely a marine group, feeding on dead or dying fish, annelids, mollusks, and crustaceans. |
 | | Today, four classes are recognized: Myxini, the jawless hagfishes, and Cephalaspidomorphi, the lampreys, are the most primitive; Chondrichthyes - the sharks, skates and rays — are a successful group with cartilaginous skeletons; And, Osteichthyes, the bony fishes, with its two relic groups and extremely diverse ray-finned group contains all those familiar freshwater and marine species. |
| www.rollinghillswildlife.com /vol_web/admin/jacksonville-zoonosis_fish.doc (3914 words) |
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