186 Dr. A. Giintlier on Deep-sea Fishes 



Scopelus macrostoma. 

 D. 13. A. 13. 



The body is highest where it joins the head, and rather 

 rapidly becomes lower towards tlie tail ; its greatest depth is 

 rather more than one fourth of the total length (without 

 caudal), the length of the head one third. Head thick, with 

 the snout of moderate length, obtuse, and with the jaws equal 

 in front. Bones of the head thin and flexible. Eye small, 

 not quite one sixth of the length of the head, and two thirds 

 of that of the snout. Posterior margin of the operculum 

 oblique, rounded. Operculum narrow, membranaceous. Cleft 

 of the mouth oblique, very wide, the maxillary reaching far 

 behind the eye, viz. to the mandibular joint; it is obliquely 

 dilated behind. Origin of the dorsal fin but little nearer to 

 the extremity of the snout than to the root of the caudal, and 

 not much in advance of the vent; its last ray opposite to 

 the last ray of the anal. Pectoral rather small, scarcely 

 extending to the origin of the dorsal. Ventral small, with 

 five rays only; the caudal rays extend a considerable distance 

 forward on the upper as well as lower sides of the tail. 

 Transparent, with the sides of the head and the abdomen 

 nlficlc 



Mid Pacific, 2425 fathoms. 



Scopelus microps. 

 D. 21. A. 9. L. lat. 35. 



The height of the body is one fourth of the total length 

 (without caudal), the length of the head one third ; the least 

 depth of the tail is two fifths of its free portion. Head thick, 

 with short snout ; the skin with which it is covered shows a 

 peculiar longitudinal striation, and is pierced by very conspi- 

 cuous pores. Eye small, one seventh of the length of the 

 head, and more than one half of that of the snout. Posterior 

 margin of the praeoperculum nearly vertical. Lower jaw pro- 

 minent. Cleft of the mouth oblique ; the maxillary reaches 

 to below the posterior margin of the eye, and is slightly 

 dilated behind. Origin of the dorsal fin behind the base of 

 the ventrals, its length being two thirds of its distance from 

 the snout. Its last ray is opposite to the first anal ray. 

 Pectoral fin rather long, but not extending to the vent. 

 Uniform black. 



Mid ocean, between Cape of Good Hope and Kerguelen's 

 Land, 1375 fathoms. 



Ipnops, g. n. Scopelid. 

 Body elongate, subcylindrical, covered with large thin 



