DISCUSSION OF SPECIES AND THEIK DISTKIBUTION. 83 



I. Mediolaterals 3, in curvod, swbvertical line. — Continued. 



B. PosterolateraLs 2, horizontally side by side. Precaudals 2-4-2. 



1. First posterolateral under soft dorsal, second behind it. 



a. D. 21-24; A. 17-18. L. hit. —. Superauals 8-7+6-7 N. elongatl'S (of Liitken). 



C. Posterolaterals 3, horizontally side by side. Precaudals 2-f 1. 



1. Last posterolateral under soft dorsal. Pectoral short and weak. 



a. D. 20-21; A. 16. L.lat. 46. Superauals 9-f 4 N. Castaneus. 



II. Mediolaterals 2. Posterolateral!. 



A. Precaudals 2-fl, the last at end of lateral line. 

 1. Posterolateral 1, in advance of soft dorsal. 



a. D. 20; A. 18. L. hit. 36. Superanals 7-f 4 (?) N. CaUDISPINOSUS. 



NOTOSCOPELUS KESPLENDENS (Richardson). (Figure 94.) 



Lampanyctus resplendens, Riciiard.son, Voy. Ereb. and Terr., Ichth., 42, pi. 27, figs. 16-18. — Cuvier and 



Valenciennes, xxii, 452. 

 Scopeliis resplendens, Gunther, Cat. Fish. Brit. Mus., v, 1864, 415. 

 Scopelus crocodiliis, Cuvier and Valenciennes, xxii, 447 (not Risso). 



Height of body 5 times in total length (without caudal); length of head 3.i or 3f ; least 

 depth of tail more than one-half height of body. Eye moderate ; distance between posterior 

 margin of orbit and jireopercular edge less than diameter of eye. Posterior margin of pre- 

 operculum de.scendiiig obliquely backwards. Snout obtusely conical, with jaws e<iual in 

 front. Cleft of mouth nearly horizontal. Maxillary reaches to angle of preoperculum and 

 scarcely dilated behind. Origin of dorsal midway between the extremity of snout and 

 adipose tin, and above root of ventral; its last ray above middle of anal. Pectoral fin 

 shorter than ventral, and not extending beyond its root. Scales perfectly smooth, those of 

 lateral line rather larger than others. 



Mediolaterals 3, in curved sub vertical line; posterolaterals 2, horizontally side by side, 

 the posterior one in advance of the soft dorsal. Precaudals 2 + 1, the last slightly below 

 the end of the lateral line. Radial formula: B. 8; 1). 21-24; A. 18; V. 8; scales 3 | 38 | 5. 



This species was described from the Gulf of Guinea. It is very desirable that the 

 Bohusliin species should be examined, as well as those in the museum at Milan. 



NOTOSCOPELrS QUERCINUS, GooDE and Bean, n. s. (Figure 97.) 



Height of body 5| in total length ; length of the head 3|-4. Eye moderate, contained 

 nearly 4 times in length of head (3^ in eye). Snout short, about one-half as long as the 

 diameter of the eye. Mouth oblique, and very large, the maxillary extending to angle 

 of preoperculum. Length of upper jaw about four-fifths that of head. Origin of dorsal 

 much nearer tip of snout than root of caudal, being over the twelfth scale of the lateral line 

 and immediately above origin of ventral ; length of its base equals that of head, and longest 

 ray two-thirds as long as head, its end over seventh ray of anal. Pectoral short, not 

 reaching to origin of ventral. Anal origin about under twenty-first scale of lateral line; 

 the length of the base equals that of head without snout, and the longest ray is about one- 

 half as long as head; Adipose fin very slender, its distance from end of dorsal equaling 

 one-half length of head. Caudal moderate, deeply forked. 



Mediolaterals 3, in curved subvertical line; posterolaterals 2, under the soft dorsal : pre- 

 caudals 2 + 1, the last below the end of the lateral line. One of the precaudals very high 

 up, between the flap of the operculum and the lateral line. 



Radial formula: D. 21-24; A. 19-20; L. lat. 42. 



The species is described from a specimen (No. 43789, U. S. IST. M.; No. 822, Gloucester 

 Donations), 125 millimeters in length, taken by one of the Gloucester fishing vessels. 



The Aibatrons obtained a specimen (No. 43790, U. S. N. M.) from station 2731, in 36° 

 45' N. lat., 740 28' W. Ion., at a depth of 781 fathoms, and also a young specimen (No. 

 43791, LI. S. N. M.), at the surface by electric light, at station 2528, in 41° 47' N. lat., 67° 

 37' 30" W. Ion., at a depth of 677 fiithoms. 



This species is very closely allieil to Scojjelm elongatus, as figured by Rafifaele (Mitt. Zool. 

 Stat. Naples, xx, 185, pi. vii, fig. 11), and also agrees with a specimen sent (from Nice) 



