44 



BUI.LBTIN OF THE BUREAU OF FISHERIES. 



the upper scarcely longer than the others, less than half diameter of pupil, directed almost vertically 

 upward; the second spine is directed backward, the third do^vnward, the fourth downward aiid 

 forward. A broad supraorbital flap with the outer margin fringed; behind this on occiput two long 

 slender filaments, one at posterior edge of occiput, the other in advance; the occipital filaments of the 

 right side are both lacking in the type; a minute filament near end of maxillary and one near opercular 

 tip. Top and sides of head with rather numerous pores, some of which are distributed around the 

 margins of wide outpushings of the sensory canals. 



Lateral line with its anterior portion in a wide ascending curve, the middle of which is slightly 

 depressed; the curved portion is a little longer than the straight part, which begins under middle of 

 soft dorsal and runs thence along middle of sides. Plates of lateral line small, those anteriorly larger 

 than the others; the upper posterior margin free and very minutely serrulate; lateral line opening by a 

 single pore under the posterior margin of each plate and directed upward and backward; numerous 

 scattered spinous scales behind the pectorals, the patch extending back below the middle of the curve 

 of the lateral line. Skin othenvise smooth. 



Dorsals joined at base, the first dorsal of very slender weak spines; caudal fin slightly rounded; 

 pectoral rays all simple, the lower thickened rays produced and exserted, the longest (upper) of these 

 produced well beyond the rest of the fin and reaching the base of the seventh aaal ray. Ventrals very 

 slender, composed of i spine and 3 very delicate rays, the inner much shortened. 



Color in spirits: I,ight olive-brown above, light below, the head much darker than the body; back 

 with five darker brown bars, all but the second narrow, the first under middle of spinous dorsal, ceasing 

 at the lateral line, tlie second a wide double bar under front of soft dorsal, extending to below middle 

 of sides, the third and fourth under middle and end of soft dorsal, and the fifth posteriorly on caudal 

 peduncle, where it joins a bar across base of tail; a series of irregular more or less united brown spots 

 below lateral line, some of which may be connected with the bars; spinous dorsal dusky, with two 

 small pale areas at base and a black blotch in front and behind; soft dorsal and caudal with fine brown 

 crossbars which are oblique on the dorsal; anal with five broad oblique bars of blackish brown; distal 

 portion of pectoral with fine brown crossbars, the basal part white, traversed by a broad brown streak, 

 which extends downward and backward from the middle of base; ventrals unmarked; a dark streak 

 running forward across lips from front of eye. 



Only the type known. 



Artediellus ochotensis, new species. (Fig. 5.) 



Type, a male specimen, 94 mm. long, from station 4798, off the west coast of Kamchatka (latitude 

 51° 37' N.); depth 25 fathoms. 



Most nearly allied to Artediellus pacificm. from which it differs in color, in the simple maxillary 

 barbel, the distinctly separate anterior pair of mandibular pores, the slightly longer dorsals and anal, 

 the less numerous pectoral rays and the more numerous pores in the lateral line. 



Measurements in hundredths of length without caudal: Length of head 39.7; length of snout 11; 

 length of maxillary 18; diameter of orbit 9.5; interorbital width 2; greatest width of head 29; greatest 

 depth of body 22; least depth of caudal peduncle 7; distance from tip of snout to hinder edge of gill 

 membrane on median line 23; length of base of dorsal fin 55; of anal fin ^y, longest pectoral ray 2,7,; 

 longest ventral ray 19; longest caudal ray 28. 



Dorsal vni-14; anal 12; pectoral 22 (g forked); caudal with 17 rays, 9 of which are forked. Lateral 

 line with 29 pores, including the pore at point of attachment of opercular membrane. 



In 8 specimens, comprising 6 cotypes from the type locality (station 4798) and 2 specimens from 

 station 3647 (near Robben Island, Okhotsk Sea), the pores and fin rays are as follows: 



