834 CALIFORNIA ACADEMY OF SCIENCES. 



a. Gill-opeuiug very narrow, almost entirely above base of pectoral, the 

 lower edge not below third pectoral i*ay. 

 /;. Anterior nostrils with distinct tubes. 



c. Dorsal rays about 30; anal rays about 24; form robust; ventral 

 disk 2 J in head; color brownish, clouded or banded. North 

 Atlantic on both coasts, south to Cape Cod. montagui* 



cc. Dorsal rays 34 to 36; anal rays 25 to 28; lower jaw included; 

 form rather elongate, the head depressed; ventral disk 2£ in 

 head; color pale, irregularly dotted with darker, sometimes 

 plain brownish. Alaska, south to Puget Sound. callyodon. 

 bb. Anterior nostrils with a raised rim, and without distinct tubes; 

 head short, blunt, 4 in length; ventral disk very large, 1J in head; 

 snout blunt; mouth very short, its cleft almost entirely anterior, the 

 maxillary scarcely reaching eye. Dorsal rays 32; anal 26. Color 

 plain rosy or brownish, not spotted. Off San Francisco, mucosus. 

 aa. Gill-opening rather large, its base opposite 4 or 5 upper rays of pec- 

 toral; body deep posteriorly; nostrils with raised rim, but without dis- 

 tinct tubes; ventral disk moderate, 1\ to 2$ in head; head about 3| in 

 body, depressed above; cleft of mouth broader, partly lateral, nearly 3 in 

 head; color plain brownish or reddish. 



d. Dorsal rays VI-27; anal 21 to 23; pectoral 30; flesh firm. 



Puget Sound to Monterey. force, 



dd. Dorsal rays VI-34; anal 30; pectoral 35; flesh lax. Pu- 

 get Sound. greeni. 



97. Liparis cyclopus Giinther. Plate xcvii. 



Head 4^; depth 4^; dorsal 34; anal 29; pectoral 

 30; caudal 12. 



Body much depressed and rather broad anteriorly, deep 

 and much compressed posteriori)' ; head a third longer 

 than broad and a third broader than deep. Flesh much 

 more firm and the skin less lax than in most species of 

 Liparis. Opercles with a rather strong spine concealed 

 by the skin; mouth rather large, terminal; jaws subequal; 

 teeth small, tricuspid, in broad bands; eye small, 6 in 

 head; snout 3, flattish and broad above; interorbital 

 space 4^3 in head; ventral disk oval, 2^ in head, its 

 anterior edge half the length of the eye behind postorbital 

 margin; gill-opening moderate, 3^ in head, extending 



Liparis montagui Donovan. 



