466 



THE FUR SEALS OF THE PRIRILOF ISLANDS. 



The fius may be uuiforiuly black with a narrow white tij) to the soft rays, or may 

 be more or less varigated with white. On the soft dorsal these marks are in the form 

 of white spots which may become coutiuent to form one or two streaks. In some 

 specimens the caudal membranes are white in their middle portion, the rays remaining 

 black. The under side of the head and maxillary membranes are sometimes marked 

 with large blackish sjjots with ill-detined edges. 



In addition to the minute pores which lie at intervals along the course of the 

 lateral line, the latter gives off pairs of lateral branches each of which opens in three 

 or more small pores. The sides of the head are also thickly studded with i>ores. 

 Owing to the thickened integument the pectorals and ventrals are more largely adnate 

 to the body than iu other species. 



The flu rays are as follows iu 10 specimens : 



First dor- 

 sal. 



Second dor- 

 sal. 



Aual. 



Pectoral . 



Rays 



Sjiecimciis . 



IX X 



6 4 



15 16 17 



1 8 1 



11 12 



3 7 



16 17 



Coitus mertcnsii, Ouvier and Valenciennes, scantily described from a drawing, may 

 be this species. 



102. Myoxocephalus verrucosus (Beau). (I'late LXVI.) 



liecorded by Dr. Beau from Plover liay, Siberia, and by Dr. (5ilbert from about 



Unalaska and Bristol Bay. Mr. Scotield 

 found it at Kings Island, Port Clarence, and 

 Grautley Ilarbor. 



103. Myoxocephalus axillaris ((Jill). (1*1 ate 

 LXVHri.) 



Recorded from Bering Straits by Dr. 

 Gill, by Mr, Nelson from St. Michaels, and 

 by Mr. Scoliehl from Port Clarence, Chignik 

 Bay, and llerendeen Bay. Pound on Beriug 

 Island by Nicolai Grebnitzki. 



104. Porocottus sellaris (Gilbert). 

 Recorded from Bristol Bay. 



105. Porocottus quadrifilis Gill. 



Recorded fi-om Beriug Straits. 



106. Porocottus quadratus, B. A. Hean, new spe- 

 cies. (Plate EX Vnfc.) 



Head, 2'i; depth, 3=^; eye, 3i in head; 

 mandible, 3^; maxillary,3; interorbital width, 

 2 in eye. D., VIII, 14; A., 12; V., I, 3; P., 

 10. Head rather short and broad, quad- 

 rangular; the proflle from tip of upper jaw 

 ascends almost vertically to end of nasal 

 spine, rounding over orbital ridge, and thence gently sloping upward to origin of 

 dorsal, from which point the body gradually tapers to the tail, the depth of the caudal 





iIy«xoc<p)uiluD 



axillaris, Hcrondcuu Uaj', 

 Anna L.. Urowii, Av\. 



Alaska. 



