2142 Bulletin //, United States National Museum. 



several epecimeus ia 284 to 685 fathoms off the coast of California and 

 Oregon, and north of Unalaska. (K£0aA./^, head.) 



Paraliparis cephalus, Gilbert, Proc. TJ. S. Nat. Mus. 1891, 561, off California and Oregon, 

 at Albatross Stations 2839, 2892, 3070, and 3071, in 284 to 685 fathoms. 



2474. PARALIPARIS ROSACEUS, Gilbert. 



Head small, 5|; depth 4|. D. 58; A. 53. Body slender, covered with 

 lax skin, which invests also the fins; month transverse, nearly liorizontal, 

 the maxillary scarcely vertical from front of pupil, equaling length of 

 snout, 3i in head; eye J interorbital width, 5 in head. Teeth in lower 

 jaw pointed, in a single close-set series, their even tips forming an almost 

 uniform cutting edge; teeth in upper jaw apparently paved, the jaw pre- 

 senting a smooth, rounded surface, on which the teeth are little evident, 

 but occasionally presenting sharp, projecting points; lower jaw included. 

 A series of conspicuous mucous pores on snout, mandible, and on preoper- 

 cle. Gill opening a narrow slit above base of pectorals. Pectoral fin 

 divided into 2 wholly distinct lobes not connected by intervening rays, 

 a space without rays present, equaling diameter of pupil; lower lobe of 

 4 rays, the longest f head, inserted under preopercular margin ; main por- 

 tion of the fin with about 15 rays and but slightly longer than tlie lower 

 lobe; dorsal beginning behind middle of pectorals, its distance from tip 

 of snout 4^ in length; distance of origin of anal from tip of snout equal- 

 ing i standard length; vent under base of upper pectoral rays, but wholly 

 behind base of lower lobe of pectorals, its distance from tip of snout 

 equaling length of head and eqtialing also its distance from origin of anal ; 

 no trace of ventral disk or fins. Color light rose-red, the fins and head 

 largely jet black; abdomen behind vent Idackish; peritoneum and lining 

 membranes of mouth and gill cavity jet-black. Length 5^ inches. Off 

 coast of Southern California, {rosaceus, rosy.) 



Paraliparis 7-ogaceus, Gilbert, Proc. TJ. S. Nat. Mus. 1890, 93, off coast of California at 

 Albatross Station, 2919, 984 fathoms; Garman, Discoboli, 80, 1892. 



2475. PARALIPARIS MENTO, Gilbert. 



Head 5| in length without caudal, equaling the greatest depth. D. 

 57; A. 43; pectoral 16. Eye a trifle less than interorbital width, greater 

 than snout, 3 in head; mouth oblique, with lateral cleft, the maxillary 

 reaching slightly beyond the middle of the orbit, ^ as long as the head; 

 chin very prominent, the mandible with a wide, membranaceous border, 

 which forms anteriorly a broad free fold over anterior portion of base 

 of pectorals. Teeth in both jaws comparatively long and slender, not 

 tricuspid, arranged in bands, those in upper jaw at least in oblique rows 

 as usual in Liparids. Nostril with a single opening and without tube. 

 Gill opening but little wider than diameter of eye, confined to region 

 above base of pectorals. Pectorals inserted very low, their upper rays 

 below level of angle of mouth, the base almost horizontal, and the ante- 

 rior ends of shoulder girdle form prominent projections below tips of 

 mandibles, fin very deeply notched, the upper lobe extending slightly 



