Jordan and Evcnnann. Fishes of North America. 1917 



but 1-J- times length of snout, and the least iuterorbital width is 11 or 12 

 times in head. In Icclus curyops (eotype, No. 45367, U. S. Nat. Mus.), the 

 eye is 2 times in head and twice the length of the snout, and the least 

 interorbital width 16 times in head. It docs not seem probable that the 

 species will vary to that extent. Maxillary reaching middle of pupil, 

 2J in head. Upper preopercular spine slender, forked at tip, directed 

 upward and backward, the second and third spines simple, slender, the 

 second directed downward and backward, the third downward and for- 

 ward. Interorbital space shallowly grooved, the groove widening back- 

 ward into an occipital depression bounded in front by the somewhat 

 elevated intcrocnlar space, laterally by the occipital ridges; supraorbi- 

 tal rim elevated in front and behind; occipital ridges low, broad and 

 rounded anteriorly, becoming narrower and more crest-like posteriorly. 

 In addition to tbe prickles and plates already mentioned, there is a band 

 of spinous scales behind axil of pectorals. Spinous dorsal low, the long- 

 est spine 2 in head, the longest ray of soft dorsal 2 in head ; pectorals 

 reaching beginning of horizontal portion of lateral line, the lower rays 

 thickened, their membranes incised; ventrals short, scarcely reaching 

 vent. Anal papilla large. Color in spirits; light brown above, with 4 

 blackish cross bars, 1 under spinous dorsal joining the dark axillary patch, 

 2 under soft dorsal and 1 at base of tail merging into the uniform deep 

 brown of the under parts ; head light brown above and below ; subocular 

 ring dark brown, this streak widening forward and crossing upper and 

 lower lips; a small patch at base of exposed portion of maxillary ; opercle 

 blackish; upper half of pectorals light, with or without a brown basal 

 bar, the distal portion indistinctly barred with light brown; lower half 

 of pectorals, and all of ventrals dark brown, or black; dorsals blackish, 

 darkest above the cross bars on back ; anal black ; caudal whitish, dusky 

 above toward tip. Bristol Bay, Alaska, where numerous specimens, 50 

 to 110 mm. long, were obtained by the Albatross at depths of 109, 351, 

 350, and 406 fathoms, respectively. (Gilbert.) (vlcinalis, near, to Icelus 

 curyops.) 

 Icelus visinalis, GILBERT, Kept. TL S. Fish Coram.1893 (1896), 413, Bristol Bay, Alaska, at 



Albatross Stations 3324, 3330, 3331, and 3332, in 109 to 406 fathoms. (Type, No. 



48737.) 



2295. ICELUS CANAL1CULATUS, Gilbert. 



Head 3 to 3 ; depth 6. D. VII or VIII, 23 or 24 ; A. 19 ; P. 16 ; V. 13 ; lat- 

 eral line 43 to 46. A deep-water species, with conspicuous mucous canals 

 and pores, thin cranial bones, and rather plain blackish coloration. In 

 other characters it stands somewhat intermediate between Icelus bicornis 

 and Icelus spiniyer. The dorsal plates have the serrulated cross ridge 

 of Icelus bicornis, the occiput is shallowly concave, with low bound- 

 ing ridges ending behind in strong spines, and the posterior rim of the 

 orbit is elevated and denticulated, as in Icclus spiniger. In its anterior 

 portions, at least, the series o*f dorsal plates is accompanied above by 

 a more or less irregular row of smaller plates, which alternate with the 

 larger plates, and bear each a small spine. Caudal peduncle long and 



