1778 Bulletin 47, United States National Museum. 



or trifid; spines on adjacent angles of subopercle and interopercle some- 

 times bifid; behind these on margin of subopercle a few short spinous 

 points. Gill rakers very long and slender, ll-j-29 in number, the anterior 

 1 or 2 of lower arch tubercular, the longest (22 mm.) more than f diameter 

 of orbit. Mandible very heavy, the symphysis not produced, the 2 jaws 

 subequal. Vomerine and palatine patches of teeth extremely narrow. 

 Fins high, the third to seventh dorsal spines subequal; caudal very 

 slightly emarginate; anal spines graduated; pectorals scarcely reaching 

 vertical from vent, the lower 9 simple, the 10 upper forked; ventral not 

 reaching vent, f length of head. Caudal scaled to tip on membranes and 

 rays; soft dorsal and anal with narrow bands of scales following the rays 

 to or nearly to their tips, the membranes of the first 3 or 4 rays in each fin 

 wholly scaled on basal third; spinous dorsal naked; pectorals scaled on 

 basal half; ventrals naked ; head, the maxillary and mandible, the bran- 

 chiostegal rays, the anterior and upper half of interopercle, and all of 

 preorbital except a minute area along its posterior margin, naked. The 

 body is covered with small weakly ctenoid scales, largely covered over 

 by the extraordinarily developed accessory scales ; scales on breast, belly, 

 and prepectora) area smooth. The naked skin covering bones of head 

 is minutely wrinkled or papillose. Color in spirits, light brownish on 

 body and fins, with darker shades on lips, gill membranes, opercles, and 

 top of head; it may have been reddish in life; mouth and gill cavity 

 white; peritoneum jet-black. One specimen 49 cm. long, from Bering 

 Island. The identification is made with some doubt, owing to lack of 

 any detailed description of the type, a dried specimen from Yesso, and to 

 some minor discrepancies between the two. Our specimen has 56 (not 

 49) tubes in the lateral line, the nasal spine is small but not properly to be 

 called rudimentary, the dorsal notch seems somewhat deeper, and the 

 second anal spine somewhat shorter. North Pacific ; coasts of Japan and 

 Bering Island, (ylaucus; y'kavno^^ hoary blue.) 



Subgenus SEBASTODES. 

 2178. SEBASTODES JORDANI, Gilbert. 



D. XIII, 14 or 15; A. Ill, 9 or 10. Pores in lateral line 54 to 58. Max- 

 illary reaching vertical from middle of eye, 2| in head ; snout 3 in head ; 

 interorbital width 4f ; eye large, 3f. Body very slender, the depth 4 

 in the length ; the least depth of caudal peduncle f diameter of eye ; 

 head very slender, 2| in length, tapering regularly to the very sharp 

 snout. Mandible projecting, its tip entering profile, provided with a 

 rather small but distinct symphyseal knob. Interorbital width flat or 

 slightly convex, wholly scaled over, the orbital ridges obsolete or a faint 

 trace only of the supraorbital, which is always without spine ; occipital 

 ridges are low and sharp, terminating each in a spinous point. In addi- 

 tion to these, the tympanic spines are sometimes weakly developed, and 

 the nasal spines are present; head otherwise wholly smooth; preorbital 

 very narrow below eye, wide anteriorly, without distinct lobes, but with 

 1 or 2 weak spinous points; gill rakers long and very slender, 29 present 



