differs in a wider interorbital, 14-15% of head; a somewhat larger preopercular 

 spine and a rising profile at the nape and fewer LL pores, plus other characters. 

 One example from AvachiB bay in our collection measures: D X, 16 A 18 P 20 

 LI 42 . 



Interorbital 15 . 1%, densely covered with bony plates developed even to edges . 

 Head width 61 .2% of its length and equals depth at nape. Preopercular spme 24.0% 

 of head. Close to G. galeatus in the structure of interorbital, but the above 

 differences are so definite, that it must be considered distinct. 



V . Vladykov in a review of Hudson Bay forms (Contr . Can . Biol . & Fish . , vol . 

 8, 1933, p. 15) notes a very interesting example of G3rmnocanthus which he calls 

 G. galeatus Bean (male, 174 mm). However, the author must be dealing with a 

 form from G. galeatus group but closer to G. detrisus Gilbert and Burke (pre- 

 orbital distance in Vladykov' s example is 13.3%). This is surely the case as he 

 synonymizes G. galeatus with G . detrisus , with which action we cannot agree on the 

 basis of our material . 



47. Nautichthys oculofasciatus (Girard) 



Blepsias oculofasciatus Girard Proc Acad Nat Sci Phil. 9, 1857, p. 202. 



Nautichthys oculofasciatus Girard Pac RR Surv 10, pt 4, fishes, 1858, p. 74. 



Nautiscus pribilovius Jordan & Gilbert Fishes Bering Sea, 1899, p. 468, pi. 69 



(Bristol Bay) 



Widely distributed, on both coasts of Bering Sea north to southern part of 

 Anadyr Gulf, (Cape Navarin-- Cape Ginter), absent further north . In the east is 

 found further north in warm current of the American coast, found NE of St . Lawrence 

 Id. in 1932 (at bottom temperature 5.5°). Taken in depths of 30 to 126 meters on 

 rocky gravel bottoms at temperatures above zero (0.5 to 5.5°). Probably, as with 

 many other fish, does not go north of the Anadyr -St. Lawrence cold shallow water 

 region, and consequently serves as an indication of warmer waters. 



The expeditions of the DALNEVOSTOTCHNIK (1932) and KRASNOARMEIETZ 

 (1933) took this form at 11 stations from Cape Africa (E. Kamchatka) to the southern 

 part of Anadjn: Gulf and off NE St. Lawrence Id. 



Our material, in which the males possessed high ID and the females low, sup- 

 ported P. Y Schmidt's contention that Nautiscus pribilovius Jordan & Gilbert were 

 only females of the male Nautichthys oculofasciatus (Girard) . However, this does 

 not exclude the possibility that a detailed study of pribilovius and oculofasciatus 

 will establish them as subspecies together with many geographical forms of this 

 wide ranging form . 



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