THE FISHES OF ALASKA. 



299 



at tho base of each, the sheath of the premaxillary pedicel rising lietween them as a stout, lilunl spine; 

 occiput rounded, without spines or cirri, a cirrus or two near tip of operch^; preopercuUtr spines 4. tho 

 upper curved and hooked \ipward, rather blunt, but strong, and covered with skin, the others minute, 

 all extending as mucronate points from a broad base, and all apparently pointing upward; a series 

 of large pores under eye and along lower edge of preopercle and lower jaw; mouth small, somewhat 

 oblique, the tip of premaxillary aliout on a line with lower margin of orbit; maxillary reaching to 

 anterior margin of pupil, lower jaw included; teeth minute on jaws and vomer; gill-membranes forming 

 a free fold across isthmus; origin of spinous dorsal above gill-cleft, its base 1 .33 in head, its upper margin 

 parallel with back; base of soft dorsal 2.9 in body, spinous and soft dorsal connected by membrane; 

 pectoral 2.GG in body, quite large, pointed, reacliing a considerable distance lieyond origin of anal; 

 ventral 1.6fi in head, nearly reaching vent; length of caudal about equal to head; anal quite limg, 

 its base about equal to length of head; caudal apparently truncate, its origin nearly vertical from that 

 of soft dorsal; vent considerably anterior to middle of body. 



Head naked, the rest of the body covered with small papillte; enlarged scales along lateral line, 

 especially in front, pores somewhat conspicuous for the whole length; plates of lateral line not keeled, 

 but each bearing several small spines on posterior margin; a series of indistinct transverse wrinkles 

 behind axil. 



Color mottled olivaceous on sides, the mottlings indistinct, so disposed as to form a series of about 

 5 saddle-like markings atToss the back about equally distributed, the light areas between them nearly 

 circular; top of head dusky; fins plain. 



Stelgidinotus latifrons Gilbert & Thompson, Proc. U. S. Nat. Mus., vol. .x.wni, 190.5. p. 977. near Bremerton, Wash. 



Fig. .50.— Stelgidonotus latifrons Gilbert & Thompson. Type. 



108. Artediellus paciiicus Gilbert. 



Our collections contain specimens from the following localities; Albatross station 4285 (Chignik 

 Bay), 4268 (Afognak Bay), 4270, 4277, 4278, and 4279 (all in Alitak Bay); and 3653 (Bering Sea). The 

 species was originally described from station 3216, south of Sannak 'Island, and is recorded by Gilbert 

 from many stations in Bristol Bay. 



A female 2.5 inches long, from station 4279, August G, contained 105 nearly ripe eggs, measuring 

 about 18 to the inch. Of the 15 specimens from Alitak Bay, 2 are males which exhibit a markedly 

 fuller development of the dorsal fins than the others. A small thread-worm was found in the abdominal 

 cavity of one specimen. 



