52 NEW FISHES FROM PACIFIC COAST GILBERT. 



spicuously arched. Upper outline of snout gently rounded, not pro- 

 jecting beyond mouth, the jaws equal. Maxillary slightly dilated at 

 tip, not reaching preopercle, If in head; gill-rakers, 5 + 10. 



Front of dorsal midway between tip of snout and base of caudal, 

 the vent under middle of dorsal base. Adipose dorsal inserted over 

 last anal ray. Ventrals reaching vent, inserted well in advance of 

 dorsal, equidistant between front of orbit and last anal ray. Pec- 

 torals minute, of three or four rays only, their length scarcely half 

 diameter of orbit (possibly somewhat mutilated). 



D. 12 ; A. 14. Lat. 1. 30 to 33. 



No phosphorescent spot in front of eye. A small glandular streak 

 on back of tail and below. Spots arranged as follows : Three pairs on 

 branchiostegal membranes, one on preopercle above its angle; four 

 pairs behind shoulder girdle, the upper one on lateral line, the lower 

 pair on breast; three other pairs on breast and another higher up on 

 sides; six i)airs between ventrals and front of anal, three of these 

 near median line, the other three higher up on sides; six pairs along 

 anal fin, the series here diverging posteriorly, the last pair on lateral 

 line; six pairs of spots along under side of tail, and three along base of 

 lower caudal lobe. This species has four pairs of spots located on the 

 lateral line and separated by about equal distances. The general color 

 is brownish, the opercles steely or blue-black, the base of caudal black, 

 and an intense black bar on gular membrane immediately behind 

 symphysis. 



Six specimens, the largest 2 inches long, from Stations 3008 and 3009, 

 in from 306 to 857 fathoms. 



3. Myctophum protoculus sp. nov. 



D. 12 ; A. 13 or 14. Lat. 1. 35 L. 2f in. 



Eye very large, placed anteriorly and superiorly, the snout very 

 bluntly rounded, projecting but little beyond the eye ; length of snout 

 about one-third diameter of orbit. Body rather deep, its depth 4 in 

 length ; head 3^. Depth of head 1^ in its length. Occipital region 

 very convexly arched, without median crest. Interorbital space flat- 

 tish, divided anteriorly by the very high ethmoidal ridge, posteriorly 

 by the forward continuation of the occipital arch. 



Lower jaw included, the maxillary not expanded behind, 1^ in head. 

 Eami of lower jaw expanded, meeting along median line to form a 

 raised crest. Gill rakers long and slender, thirteen on horizontal limb 

 of anterior arch. 



Front of dorsal nearer tip of snout than base of caudal by a distance 

 varying from a diameter of orbit to one-half that length. Length of 

 dorsal base If in head. Front of anal midway between base of median 

 caudal rays and base of pectorals. Ventrals inserted slightly in ad- 

 vance of front of dorsal, the fin reaching front of anal. Pectorals very 



