1894 Bulletin //, United States National Mnseum. 



markings ; soft dorsal transhiceut, witli broad oblique dusky bars ; caudal 

 with the dusky basal bar continued on upper and lower rays at base, the 

 basal half of fin translucent, its terminal portion with 2 or 3 blackish 

 crossbars; anal bl.ick-cdged in males; ventral black in males; base and 

 lower half of pectorals largely black iu males, the terminal portion with 

 pearly and dusky bars; brauchiostegal membranes black in males; a 

 broad black bar below eye. Length 5i inches. Coast of southern Cali- 

 fornia, in rather deep water. (Gilbert.) (<en»is, slender.) 



Icelinus tenuis, Gilbert, Proc. U. S. Kat. Mus. 1890, 86, oflFSanta Barbara Islands, at Alba- 

 tross Stations 2893, 2946, 2959, 2977, and 2983, in 45 to 150 fathoms. (Type, No. 43086. 

 CoU. Gilbert.) 



709. ICELINUS, Jordan. 

 Icelinus, Joedan, Cat. Fishes N. A., 110, 1885 (quadriscriatus) . 



Body slender, little compressed ; upper preopercular spine long, with 2 

 to 5 hooked processes above; a well developed series of S2)inous scales or 

 plates along the back, these meeting behind dorsal; another series along 

 lateral line ; no plates behind the axil. Three or 4 preopercular spines. 

 No slit behind last gill; gill membranes broadly united, free from the 

 isthmus. Teeth on vomer and palatines; spinous dorsal short, without 

 notch or filaments ; ventral fins small, I, 3. Deep waters off the coast of 

 California. Size small. (Name a diminutive from /cchts,'7;ii:£Aoj, a god of 

 sleep, from the quiescent habit of these Northern fishes.) 



a. Nasal tentacle broad and palmate, with narrow atem-like base; nasal, 2 postocular 



and occipital spine present; interocular space about i pupil; supi-aocular flla- 



uieut usually fimbriate. Head 2;V in length. fimbeiatus, 2275. 



aa. Nasal tentacle simple, slender. Eye very large ; interocular space very narrow, 



about ^ pupil; maxillary reaching posterior border of pupil; no postocular or 



occipital spines. 



h. Preopercular spine moderate, shorter than eye; head 2J in length; eye large, 



3.^ in head. oculatus, 2276. 



bh. Preopercular spine large, as long as eye ; head 2J in lengtli ; eye small, 4 in 



head. 



BOBEALIS, 2277. 

 aaa. Nasal tentacle obsolete. 



c. Head small, J length; interocular space 21 in pupil; dorsal series of plates 

 usually interrupted under posterior rays of soft dorsal, then continued 

 on back of caudal peduncle ; no postocular spine ; nasal and occipital spines 

 present. quadriseeiatus, 2278. 



cc. Head larger, 2| in length; dorsal series of plates continuous, the series 

 double, except for last 5 or 6 scales ; a short dermal flap behind eye. 



STRABO, 2279. 



2275. ICELINUS FIMBRIATUS, Gilbert. 



Head 2^ to 2|; depth 4|; eye 3^ to 4^ in head. D. X, 1.5 or 16; A. 12. 

 Shape much as in Icelinm (ptadriseriatns. Depth of caudal peduncle 

 f orbit. Mouth larger, the maxillary reaching beyond middle of pupil, 

 2^ to 2i in head; teeth as usual; nasal spines strong; interorbital 

 space narrow, grooved, | length of pupil; preopercular spine very 



