| Petromyzon | Primitive marine vertebrate (Class Agnatha) with eel like body and lacking true jaws. Their relatively simple nervous system has been studied in some detail. (18 Nov 1997) |
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| petromyzont | <zoology> A lamprey. Origin: Petro + Gr. To suck in. Source: Websters Dictionary (01 Mar 1998) |
Synonyms : Lamprey, Sea, Lampreys, Sea, Sea Lampreys
| Petromyzon | typical lampreys |
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| Petromyzon | large anadromous lamprey sometimes used as food |
| Petromyzon | lampreys as distinguished from hagfishes |
| Petromyzon | lampreys |
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