1936] Schultz: Keys to Fishes 127 



91a. Jaws long, very slender, almost thread-like, diverging to form a 

 snipe-like beak. Fig. 20. 

 Snipe Eels 28. Nemichthyidae, p. 142 



Fig. 20. The snipe-like jaws of Ne- 

 michthys avocetta. Modified after Jor- ^*>^^ ^i£s 7 — < &&/////////// 



dan and Evermann. 



91b. Jaws not as above. 



92a. Snout elongate and tubular, bearing very small toothless jaws at 

 the end ; covering of body of bony plates. 

 Pipe Fishes 48. Syngnathidae, p. 160 



92b. Snout not tubular ; mouth and body covering not as above. 



93a. Breast with a sucking disk. Fig. 17. 



94a. Skin smooth and lax ; anal fin with more than 20 rays. 



Sea Snails 72. Liparididae, p. 186 



94b. Skin thick and firm, smooth or covered with tubercles or 

 broad plates bearing spines ; anal fin of fewer than 20 rays. 

 Lumpsuckers 71. Cyclopteridae, p. 186 



93b. Breast without a sucking disk. 



95a. Skin very loose and lax, without scales ; gill opening above 

 pectoral or not extending below the base of the middle ray 

 of the pectoral fin. 

 Sea Snails 72. Liparididae, p. 186 



95b. Skin firm, normal, with or without scales, never loose and 

 lax; gill opening extending down below the base of the 

 middle ray of pectoral fin. 



96a. Body elongate not short and deep and not truncate be- 

 hind ; dorsal fin single, extending along nearly the whole 

 back ; gill openings in front of the pectorals. 



97a. Jaws and vomer with some coarse molar or pebble-like 

 teeth ; body tapering to a slender point behind in local 

 species. 

 Wolf Fishes 81. Anarrhichthyidae, p. 195 



97b. Teeth not as above, or not molar-like. 



98a. Origin of anal fin under the 34th to 55th spinous 

 ray of dorsal fin ; body ribbon-like and never with 

 multiple branched lateral lines ; all vertebrae with 

 haemal arches. 

 Blennies 79. Pholididae, p. 192 



98b. Origin of anal fin under the 12th to 32nd spinous 

 ray of the dorsal fin ; body round and not ribbon-like 

 except in Phytichthys which has multiple branched 

 lateral lines, and II (rarely III) anal spines; only 

 the caudal vertebrae with haemal arches. 

 Blennies 80. Stichaeidae, p. 192 



