1. 
   Petromyzon
   [n] - typical lampreys
   Found op http://www.webdictionary.co.uk/definition.php?query=Petromyzon
   
   
2. 
   Petromyzon
   (= lamprey) Primitive marine vertebrate (Class Agnatha) with eel-like body and lacking true jaws. Their relatively simple nervous system has been studied in some detail.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   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) ...
   Found op http://www.mondofacto.com/facts/dictionary?Petromyzon
   
   
4. 
   Petromyzon
   genus Petromyzon noun typical lampreys
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=Petromyzon
   
   
5. 
   petromyzon
   1) Fish genus 2) Genus petromyzon 3) Petromyzon 4) Typical lampreys
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/petromyzon/1
   
   

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