Jordan and Evermann. : Fishes of North America. 2019 



ral ridge present; maxillary reaching to beyond middle of pupil; snout 

 with 5 barbels, chin with 6, the longest about as long as the eye, which 

 is 3f in head ; a small cirrus on each interorbital ridge ; interorbital space 

 as wide as eye; sides with 3 or 4 pale, well-defined, naked areas behind 

 pectorals, the 2 anterior much the largest; behind these a long naked 

 strip along the lateral line, colored like the rest of the body; first 4 spines 

 of dorsal elevated, f to f length of head; the fifth much shortened ; mem- 

 brane deeply notched between the fifth spine and the sixth, which is 

 longer than the one before it; ventrals as long as eye; pectorals reaching 

 much beyond front of anal ; first rays of soft dorsal short; the others 

 gradually lengthened to near the last, the highest higher than the dorsal 

 spines; caudal longer than head. Dark olivaceous, sides of back with 4 

 to 6 vertically oblong black blotches edged with paler, not reaching 

 nearly to lateral line; belly and naked areas on sides whitish; black 

 bands radiating from eyes; fins dark, with large pale blotches and dark 

 spots; caudal with light: and dark bars; ventrals plain; a small white 

 spot on front of spinous dorsal. Adults from Unalaska show the follow- 

 ing color: Olive green of varying shades, the belly bright coppery yellow, 

 the cross blotches on back nearly black, with paler margins; naked 

 patches on sides white or brassy, those on tail colored like body, thosr on 

 head silvery; first dorsal light olive, with 2 translucent patches; second 

 dorsal mottled olive with dark spots and translucent patches; caudal 

 with 3 blackish and 4 translucent bands; anal yellowish olive with 

 numerous spots and translucent patches; radiating blackish bands run- 

 ning out from eye; the upper barbels black, the lower olive. Length t> 

 inches. Alaska to San Francisco, in shallow water; not rare northward ; 

 common at Unalaska; known also from Petropaulski and I tump Island; 

 not often seen south of Puget Sound, (tirrhosus, bearing cirri.) 



Trachinus cirrhosus, PALLAS, Zoogr. Ross.-Asiat., in, 237, 1811, Avatcha Bay, Kamchatka 



(Coll. Merk); Gulf of Penshin, Ochotsk Sea. 



Blepsias trilobus, CUVIER & VALENCIENNES, Hist. Nat. Poiss., iv, 375, 1829; same types. 

 Blepsias cirrhosus, GUNTHER, Cat., n, 153, I860; STEINDACHNER, Ichth. Beit., v, 128, 1876; 



JORDAN & GILBERT, Synopsis, 719, 1883. 



750. NAUTISCUS, Jordan & Evermann, new genus. 



Nautiscus, JORDAN &, EVERMANN, new genus (pribiloviux) . 



This genus is closely allied to Naittichthys, having the same gill struc- 

 tures and dentition, but the first dorsal is only moderately elevated, its 

 height being less than depth of body. There are no cirri on the head, 

 and there is no marked depression at the occiput, the base of the dorsal 

 being little raised above the nape; preopercle with four obsolete spines; 

 skin rougher than in Nautichthys, the anal fin shorter. Bering Sea. 

 (a diminutive of vavrrjs, a ship, from the low first dorsal.) 



2388. XAUTISCUS PRIBILOVIUS, Jordan & Gilbert, new species. 



Differing from N. oculofasciatus in the shorter lower fins, the lower cra- 

 nial ridges, and the coloration. Head 3 to 3; depth 3f. D. VIII, 23; A. 

 15; V. 1, 3; P. 15; eye 3 in head; maxillary 2f ; lateral line with 39 spines. 



