Measurements from three females , 168-174 mm. T3T)e, a female, 168 mm, 

 no. 24943 Zool. Inst. Akad. Nauk. SSSR. 



G. bilabrus differs from G. viridis (Fabricius) found in these same waters 

 primarily in the structure of the upper lip, which is attached to the snout, a 

 higher head, and not depressed head, with cheeks not expanded and also in coloring. 



100. Gymnelis hemifasciatus Andriashev, sp. n. PL 2, figs. 23-24. 



1. Bering Sea. DALNEVOSTOTCHNIK, July 23, 1932, St. 10(8), 59° 54' N, 



170° 36' E, off Cape Olytorsky, gravel 64 meters, temp. 2.3", lex. 

 A. Andriashev. 



2. Bering Sea. DALNEVOSTOTCHNIK, August 25, 1932, St. 47(40), 

 64° 15' N, 172° 27' W; between Chukchi peninsula and St. Lawrence 

 Id., small and large gravel, 55 meters, temp. 1.3". lex. type 

 A. Andriashev. 



Head small, high, compressed. Head to end of gill membrane 13.8-14.4% L 

 (to end of operculum 12.8-13. 1% L). Cheeks not muscular, vertical. Head width 

 6.2 6.3% L, about 3/4 of head depth . The depth of head 8 . 5% L . Eyes very large, 

 almost reaching to edge of upper jaw, diameter 4.3-4.5% L, 30.8 -31 .4% head, almost 

 twice the snout. Snout 2.5-2.6% L, 17. 1-18.5% head. Interorbital 3.6-3.9% head. 

 Upper jaw short 41 .5-42 . 1% head, extending to vertical from posterior end of eye . 

 Upper lip solid, the same height throughout and not attached anteriorly. Lower 

 lip as in Gymnelis bilabrus Andriashev, except that its free parts are narrower . 

 Pores on head small, their distribution as in other species of the genus Gymnelis . 

 Gill openings small, above base of pectoral and not extending past the level of the 

 1-2 pectoral ray. Small conical teeth on jaws, vomer and palatines. 



Body naked. Depth at anal base 8.9-9.3% L. Dorsal origin almost over 

 pectoral base . Predor sal 14.9-15.5% L, preanal 34.0-36. 1% L. Lateral line 

 mediolateral; over abdomen is an arch . 



Unpaired fins low. Height of dorsal equal to eye (or exceeds it slightly 

 posteriorly). Anal low, considerably less than eye. Pectoral 8 . 8 -8 . 9% L, 

 60.7-64.6% head. 



Anterior part of body to base of anal is light cream, having four dark brown 

 double lines that continue on dorsal. On posterior portion of body these lines be- 

 come wider and lighter, acquiring a pattern and becoming indistinct. On the dorsal 

 are 2-3 small brown spots . Top of head dark brown with a wavy light pattern and 

 light line across nape . Anal and pectoral lig^it. 



73 



