88 " ENDEAVOUR " SCIENTIFIC RESULTS. 



Gill-membranes united, free from the isthmus, with nine 

 branchiostegals, of which the anterior are very slender and the 

 hinder ones broad. The gill-rakers are slender, and there are 

 about twelve on the lower limb of the first arch. 



Dorsal fin preceded by a rather large, raised bone, which 

 forms several spines and keels ; it is placed midway between the 

 snout and the hypural or somewhat nearer the latter. The 

 dorsal rays are bifurcate, and the fourth or fifth is the longest. 

 Adipose dorsal of moderate size. The anal commences below or 

 behind the middle of the dorsal ; the fourth or fifth ray is the 

 longest, and the following ones are bifurcate. Pectorals narrow and 

 elongate, reaching nearly to the verticle of the base of the 

 ventrals ; the third or fourth upper rays are the longest, and 

 most of them are bifurcate. Ventrals inserted below the 

 anterior dorsal rays ; all its rays are divided, and the first is 

 broader than the others. Caudal forked. 



Below and in front of the pectoral there is a large fan-like 

 expansion of the coracoid bone, which is coarsely striated, the 

 stride ending in small teeth on the margin. The clavicles form a 

 small, double spine at their symphysis on the ventral edge. Very 

 few scales are left upon the body, only a few of the stronger 

 ones covering the photophores remaining. Those along the 

 ventral edge bear some coarse striae, and their lower margins are 

 denticulated. Those above the anal are smooth, but the four on 

 the caudal peduncle are rough like the ventral ones. 



The arrangement of the photophores is as usual in the genus. 

 By far the largest is the one occupying the greater portion of the 

 cheek. There is a small one on the upper part of the operculum 

 behind the eye. Six are in the gill-membrane on each side 

 anteriorly, and one underneath the lower part of the operculum. 

 There are six on the chest in front of the pectoral, and ten before 

 the ventral. Five are on the side between the pectoral and the 

 ventral, and two much higher up. Five in front of the anal, and 

 fifteen to seventeen above it in an unbroken row ; four more are 

 separated from these by a short space on the caudal peduncle. 



Colour. Back blackish brown, with minute darker specks ; 

 a small triangular patch descends onto the sides anteriorly. A 

 small iridescent, blackish spot before the eye, and the upper 

 portion of the operculum is black, Eye brownish black, the 

 pupil surrounded by a golden ring which spreads out into a 

 broad patch below, and is sharply defined from the rest of the 

 eye. The fleshy area enclosed by' the post-temporal is blackish 

 above and silver below, the junction of the two forming a very 

 sinuous curve. All the photophores strongly outlined with deep 

 black. 



