2734 Bulletin 4.7, United States National Museum. 



of mandible projecting more and forming a salient point; mouth compara- 

 tively less wide, and the maxillary considerably shorter, being about | of 

 total length, without caudal, while it is rather more than \ in the Madeiran 

 species. Eye rudimentary. One cephalic spine, shorter than maxillary ; 

 last dorsal ray connected by a short and delicat* membrane with caudal 

 fin ; most of the caudal rays bifid, the longest shorter than maxillary ; 

 pectoral fin as much developed as in Melanocettis johnsonii. Entirely black. 

 Total length 44 lines ; length of mandible 14 lines ; length of maxillary 12 

 lines; length of caudal fin 10 lines. A young individual, 44 lines in 

 length, was taken by H. M. S. Challenger in the mid- Atlantic, at a depth of 

 1,850 fathoms (Station 106) ; another of 13 lines at the depth of 2,450 

 fathoms (Station 348). (Goode & Bean.) (Named for Dr. John Murray, 

 second director of the civilian staff on board H. M. S. Challenger.) 

 Melanocetus bispinosus, GUNTHER, Study of Fishes, 473, 1880 ; name only. 

 Melanocetus (Liocetus) murrayi, GUNTHER, Challenger Keport, xxn, 57, pi. 11, fig. A, 1887, 



mid-Atlantic. 

 Liocetus murrayi, GOODE & BEAN, Oceanic Ichthyology, 495, fig. 407, 1896. 



1070. LINOPHRYNE, Collett. 

 Linophryne, COLLFTT, Proc. Zool. Soc. London 1886, 138 (lucifer). 



Head enormous ; the body slender, compressed, mouth oblique. Spinous 

 dorsal reduced to a single cephalic tentacle, the basal part of which is 

 erect, not procumbent. Teeth in the jaws on the vomer and the upper 

 pharyngeals. Gill openings exceedingly narrow, situated a little below 

 the root of the pectoral. Soft dorsal and anal very short; ventrals none. 

 Abdominal cavity forming a sac, suspended from the trunk. Skin smooth ; 

 a long tentacle on the throat. This genus differs from Melanocetus in the 

 presence of the gular tentacle. (Xivo$, linen, net; fypvrr}, a toad.) 



3117. LINOPHRYNE LUCIFER, Collett. 



D. 1-3; A. 2; C. 9; P. 14 or 15. A spinous projection or horn above 

 each orbit. Cephalic tentacle black, with a large ovate bulb, the upper 

 half of which is white; gular tentacle much larger, terminating in 2 

 tongue-like appendages, which are furnished on the upper edge with a row 

 of round, white papillae. (Goode & Bean.) Mid- Atlantic, northwest of 

 Madeira, Lat. 36 N., Long. 20 W. One specimen known. (Lucifer, an 

 evil spirit ; lux, light ; fero, I bear. ) 



Linophryne lucifer, COLLETT, Proc. Zool. Soc. London 1886, 138, pi. 15, mid-Atlantic, 

 between Madeira and the "West Indies (Coll. Capt. P. Andresen. Hus. Univ. Chris- 

 tiania) ; GUNTHER, Challenger Report, xxii, 37, 1887 ; GOODE & BEAN, Oceanic Ichthy- 

 ology, 496, fig. 408, 1896. 



1071. CAULOPHRYNE, Goode & Bean. 



Caulophryne, GOODE & BEAN, Oceanic Ichthyology, 496, 1896 (jordani). 



Head large, compressed ; mouth with the cleft nearly horizontal ; body 

 short, much compressed. Spinous dorsal reduced to a single cephalic ten- 

 tacle, which is supported on a short procumbent base. Teeth of unequal 

 size in the intermaxillary and the mandible ; voiner, palatines, and upper 



