4 PROCEEDINGS OF THE NATIONAL MUSEUM vol.71 



off Cap Notoro, off Cap Seniavino. In the North Japanese Sea it 

 is found in the Tartar Straits, in De Castries Bay, in 51° 26.5' N., 

 141° 29.5' E., in 50° 58' N., 141° 4' E., and off Moneron Island (Todo- 

 mosiri near Laperouse Strait). 



ARTEDIELLUS OCHOTENSIS morpha CAMCHATICUS Gilbert and Burks (1912) 



Artediellus comchatwus Gilbert and Bxjbke, Bull. Bur. Fish., vol. 30, 1910, 

 (1912) p. 46, fig. 6. 



This form is nearly allied to Artediellus ochotensis Gilbert and 

 Burke and can not be separated, either as a distinct species nor as a 

 subspecies. 



The variation of the number of pores in the lateral line is nearly 

 the same, as is shown by the following figures: 



Pores 28 29 30 31 32 33 34 



Specimens 3 5 3 2 2 1 



The difference lies principally in the lower development of the 

 cutaneous cirri and of the pores on the top of the head and on the 

 occiput. But both these features are also highly variable in A. ocho- 

 tens-is Gilbert and Burke, so that one can not trace a distinct line 

 between these two forms. The coloration is also very variable in 

 both forms; but in A. ochotensis morpha canichaticus the crossbars 

 on the dorsals, pectorals, and caudal fins are not so continuous and 

 are formed mostly by separate brown spots. No distinct black round 

 spot on the upper part of the first dorsal is seen, but sometimes a 

 dark blotch. 



This form can not be regarded as a subspecies of Artediellus ocho- 

 tensis Gilbert, as it has not a separate geographical range. Such 

 forms connected with the typical species by continuous variation 

 and having the same geographical distribution as this species, 

 I regard, as do many Russian entomologists, ornithologists, and 

 ichthyologists* as iiiorphae (forms). 



Geographical distribution. — The Albatross dredged this form at 

 stations 4794, 4795, and 4796, off Avatcha Bay, Kamchatka. Accord- 

 ing to our collectors it is widely distributed in Okhotsk Sea and found 

 in its northern part (59° 15' N., 144° 15' 5" E.), off the west coast 

 of Kamchatka (near Yavino and Oserkovsky) and in its southern 

 part (Aniva Bay, Sakhalin). In North Japanese Sea the distribu- 

 tion of this form is also nearly parallel to the distribution of the 

 typical A. ochotensis., but it goes farther to the south, and was found 

 near to Peter the Great Bay (43° 45' N., 135° 35' E. in 90 fath.). 



* A. P. Semenov-Tian-Shansky, M4m. Acad. Imp., St. PetersLourg, ser. 8, vol. 30, No. 1. 

 L. Berg, Biologic, .Journal (Russian), 1910, No. 3. L. Berg, Des poissons des eaux douces 

 de la Russie, 1916, p. xvii. V. L. Bianchi, Russ. Zool. Jouru., vol. 1916. 



