DISCUSSION OF SPECIES AND THEIR DISTRIBUTION. 447 



closely in other exteri)al characters we feel compelled to retain it in that genus for the pres- 

 ent at least. 



A specimen (D. 77; A. 61; V. (3; L. lat. 40) was takeu by the Albatrof:s from station 

 2-417, in 33° 18' 30" N. lat., 77° 07' W. Iod., off Cape Fear, at a depth of 95 fathoms. 



CITHARICHTHYS SPILOPTERUS, Gi'NTiiER. (Tigiire 370.) 



Citkarichlhys spilopterus, GiJi'lTnBR, Cat. Fish. Brit. Mus., iv, 421. 



The height of the body is two-flfths of the total length (without caudal), the length of 

 the head two-sevenths. Scales of the lateral line subquadrangular; lateral liuu nearly 

 straight, gently descending anteriorly. Snout with the jaws equal in front, rather longer 

 than the eye, tlie diameter of which is one-sixth of the length of the head. The niaxillaiy, 

 the length of which is contained twice and two-thirds in that of the head, extends beyond 

 the middle of the orbit. Anterior teeth in the upper jaw widely set, much larger than the 

 po.sterior, which are close together and very small ; the lower jaw with seven or eight dis- 

 tant teeth of moderate size on each side. Eyes separated by a very narrow scalelcss ridge, 

 their front margins being nearly on the same level. Fin-rays scaly. The dorsal commences 

 a little before the ui)i)er eye, and terminates close by the caudal; its longest rays are be- 

 hind the middle, andone-half of thelength of the head. Anal spine none. Caudal rounded; 

 its length is one-sixtli of the total. The pectoral is rather longer than lialf the length of 

 the head; ventral nuich shorter, extending beyond the origin of the anal. Gill rakers 

 lanceolate, pointed, one;third as long as the eye. 



Radial formula: D. 7U-7S; A. 60-63; L. lat. -17-50. 



Color, grayish olive (in spirits); a series ol distant blackisb spots along the basal 

 portions of the anal and dorsal tins. 



The species has been taken on tlie Atlantic coast of tropical America and on the west 

 coast of Africa. A single specimen was taken by the Blake from station ccxliv, in 23° 13' 

 N. lat., 89° 10' \V. Ion., at a depth of 84 fathoms. 



CITHARICHTHYS DINOCEROS, Goode and Bean. 

 Citharichthys dinoceron, (Joode and Bkan, Bull. Mus. Comp. Zoiil., xii, No. .5, 157. 



(jrreatest height of the body (40 millimeters) is contained 2.3 times in the total length, 

 and equals about 4 times the least height of the tail. 



Scales thin, deciduous, cycloid, large, 48 in the lateral line, which is slightly curved 

 over the pectoral; 14 above and 16 below the lateral line. 



The length of the head (27 millimeters) is contained 3;^ times in the total length, and 

 equals about 3;^ times the diameter of the eye (8 millimeters). The iuterorbital space is very 

 narrow, its width less than one-fifth diameter of eye; ridge rather prominent, narrow, sharp. 



The upper eye distant from profile by a space (2 millimeters) about one-fourth of the 

 orbital diameter. 



The length of the maxillary (12 millimeters) is less than half the length of the head; that 

 of the mandible (16 milliiin^ers) more than half, and twice the diameter of the eye. 



The teeth uniserial in both jaws, those in the front much the largest. A strong spine 

 upon the snout overhanging the upper lip (much lower than in C. unicornis). Above this 

 there is a second, shorter spine. 



The dorsal fin begins upon the snout in advance of eye upon blind side. It is composed 

 of 91 rays, the longest somewhat behind the middle of the fin; its height (13 millimeters), 

 about equal to half the length of the head. 



The anal fin origiiuites about under the origin of the pectoral; its distance from the 

 snout (30 millimeters) equals one-third of tlie total length. It is composed of 73 rays, and 

 is as high as the dorsal. 



Caudal sub.sessile, pointed, its length (17 millimeters) contained about 5^ times in total 

 length, and equaling twice the diameter of the orbit. 



