166 



ZOOLO&Y. 



9. Ammodytes, Launce. Bor/j/ long, enclining to quadran- 



gular; head small, slender; upper lip doubled in, 

 dorsal and anal fins extending nearly to the tail ; caudal 

 fin distinct. 



10. Ophidium. eiisiform ; head nearly naked ; teeth 

 in the jaws, palate^ and throat : gilLmembrane seven 

 rayed. 



11. Triurus. Triple-Tail, ^/zoz/^ cylindrical ; tooth ?>'mg\Q 

 in each jaw ; dorsal and anal fins extending beyond 

 the tail, from which circumstance it has the appearance 

 of possessing three tails. 



12. Leptocephalus. Morris. Bo^/^/ compressed, very thin ; 

 head small, narrow * pectoral fins wantiog. 



13. Stylephorus, Body long, compressed ; cj/e^ placed ©h 

 a short thick projecting cylinder ; snout protruding, 

 inclining upwards, retractile ; gills three pair, situated 

 beneath the throat : pectoral fins small ; dorsal fin the 

 length of the back ; caudal fin short, with spinous rays. 



) 4. Trichiurus. Body compressed, ensiform ; head length- 

 ened, the apertures lateral; teeth ensiform, hooked, 

 front ones larger : tail subulate, without a fin. 



15. Anarhichas. Wolf-Fish. long, roundish ; head 



blunt ; /ror.t* teeth conical, large, divergent ; grinders 

 large and flat ; gill-memhram sis' rayed ; tail fin 

 distinct. 



