84 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



under that name by the Florence museum. We should identify our specimens with the 

 8. slongatus of Oust a. but for the unsettled state of opinions among European ichthyologists. 

 Steindachner, Vinciguerra, Raffaelle, and Collett seem all disposed to recognize but one 

 species of Notoscopelus. We think we have distinguished four, but possibly our series is 

 not sufficiently complete to justify us in positive opinions. 



NOSTOSCOPELl'S MARGAKITIFEKUS, Goode aud Bean, n. s. (Figure ! 18. I 



Height of body one-fifth of total length (without caudal); length of head one-fourth. 

 Least height of tail one-half of greatest height of body. Snout very short aud compressed 

 ir + o a keel on its upper edge; its length scarcely more than one-half diameter of the eye. 

 Gill rakers, 9 or 10 above the angle, about 16 below; the longest about two thirds the 

 diameter of eye. Eye moderate, about one-fourth length of head. Intermaxillary reaches 

 almost to angle of preoperculuin. Space between eye and hinder edge of preoperculum 

 much less than diameter of the eye. Origin of dorsal much nearer tip of snout than 

 root of caudal. Length of dorsal base nearly one-third of total (without caudal); origin of 

 dorsal about over ninth scale of lateral Hue, aud in same vertical with origin of ventral. 

 The ventral does not quite reach to origin of anal. Pectoral very short, its length only 

 one-third that of head. No adipose dorsal. Anal origin under eighteenth scale of lateral 

 line. The base of the flu is as long as head without snout. Caudal moderately forked. On 

 top of the caudal peduncle a long, linear mirror, nearly one-half as long as head, its width 

 about one-third of its length. Several large phosphorescent spots on inner edge of mandi- 

 ble, a large one near angle of preoperculum 



Mediolaterals, 3, in curved, subvertical line. Posterolaterals, 2, under soft dorsal. 

 Superanals 9+7. Precaudals 2+2, the last below end of lateral line. 



Radial formula: IX 16; A. 14. 



A specimen of this species (No. 13775, I*. S. N. M.: No. 1)33, Gloucester Donations) was 

 taken off Banquero by the schooner Alice M. Williams. Another specimen (No. 43774, U. 

 S. N. M.; No. 404, Gloucester Donations) lias also been obtained. 



NOTOSCOPELUS CASTANETS, (Joode aud Bean, u. b. (Figure 95.) 



Depth of body 5^ in total length ; length of head, four times. Eye moderate, its diameter 

 nearly four in length of head, and nunc than twice in length of snout. Mouth exceedingly 

 wide, oblique, with jaws equal : maxillary extending backwards almost to angle of preoper- 

 culum. Intermaxillary as long as maxillary, aud toothed throughout its entire length. 

 Maxillary very little expanded posteriorly. Origin of dorsal flu very much nearer tip of 

 snout than root of caudal, being as far from suout as from front of pearl-colored patch on 

 top of tail; origin somewhat in advance of origin of ventral; base is considerably longer than 

 head; the longest ray equals length of post-orbital part of head. Caudal deeply forked. 

 Pectoral small, and does not reach nearly to ventral; its length not much more than one- 

 third that of head. Ventral insertion under fourth ray of dorsal; its length about one-half 

 thatof head. Anal base nearly equal to head without snout. 



Mediolaterals, 3, in curved subvertical line; posterolaterals, 3, horizontally side oy side. 

 Precaudals 2 + 1, last below the end of the lateral line. Last posterolateral under soft 

 dorsal. Number of superanals, 9+4. Radial formula: D. 20-21; A. 16; L. lat., about 46. 



This species is described from a specimen (No. 31706, l T . S. N. M.), 5J inches long, taken 

 by the Fish Hawk from station 1,113, in 39° 57' N. hit., 70° 37' W. Ion., at a depth of 192 

 fathoms. Another example (No. 21688, U. S. N. M. ; No. 189, Gloucester Donations), six 

 inches in length, was obtained on the fishing banks by the schooner William Thompson. 



NOTOSCOPELUS CAUDISPINOSUS (Johnson). (Figure 96.) 



Scopelus caudispinosus, Johnson, Proc. Zool. Soc, 1863, 42. — Gunther, Cat. Fish. Brit. Mus., v, 1864, 416. 



Height of body contained 5i in total length ; length of head, 3§. Eye moderate. Snout 

 obtusely conical, with jaws equal iu front. Cleft of mouth rather oblique. Origin of dorsal 



