556 Bulletin 4/, Untied States National Museum. 



ScopelmJcruyeri, Malm, Goteberg Vetensk. Handl., 100, 1803, Bohuslan, Sweden. 

 Scopelus psfudocrocodiliin, MoREAU (fiile Li'tken). 



Myclopkum hrachychir* Eiqenmann & Eioenmann, West American Scientist, 1889, 12C, Cortez 

 Banks. 



831. MACROSTOMA t'ASTANEUM (Good.- & Bean). 



Head 4 ; depth .5^^. D. 20 or 21 ; A. 16 ; scales about 46. Eye mod- 

 erate, its diameter nearly 4 in head, and more than 2 iu snout. Mouth 

 exceedingly wide, obliciue, with .jaws equal; maxillary extending back- 

 ward almost to angle of preoperculum. Intermaxillary as long as max- 

 illary, aud toothed throughout its entire length. Maxillary very little 

 expanded posteriorly. Origin of dorsal fin very much nearer tip of snout 

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

 patch on top of tail and somewhat in advance of origin of ventral ; dorsal 

 base considerably longer than head, the longest ray equaling length of 

 postorbital part of head ; caudal deeply forked ; pectoral small and 

 not reaching nearly to ventral, its length not much more than ^^ that of 

 head ; ventral insertion under fourth ray of dorsal, its length about i 

 that of head ; anal base nearly equal to head Avithout snout. Medio- 

 laterals 3, in curved subvertical line ; posterolaterals 3, horizontally side 

 by side. Precaudals 2 -f 1, last below the end of the lateral line. Last 

 posterolateral under soft dorsal. Number of superanals 9 + 4. Grand 

 Banks, two specimens known. (Goode & Bean.) {caslaueus, chestnut- 

 colored.) 



Notoscopehis castaneits, Goode & Bean, Oceanic Ichthyology, 85, fig. 95, 1895, Grand Banks. 

 (Type, No. 31706. Coll. Str. Fish Dawk.) 



832. MACROSTOMA CAUDISPINOSUM (.Johnson). 



Head 3f ; depth 5^. D. 36 ; A. 18 or 19 ; V. 8 ; lateral line 36 to 38. Eye 

 moderate. Snout obtusely conical, with jaws equal iu front. Cleft of 

 mouth rather oblique. Origin of dorsal fin midway between extremity 

 of snout and adipose fin, and above base of outer ventral rays, its last ray 

 behind vertical from middle of anal. A series of from 6 to 9 small 

 spines benf backward, above and below, before the root of caudal, the 

 tips of neural processes. Pectoral fins shorter than ventral, aud not 

 extending beyond its root. Mediolaterals 2; posterolaterals!; precau- 

 dals 2-j- 1, the last at the end of the dorsal line; the single posterolat- 

 eral in advance of the soft dorsal; number of superanals 7 + 4 (?). 

 (Goode & Bean.) Atlantic Ocean, two specimens known, one from the 

 western Atlantic at a depth of 1,782 fathoms, 39° N., 68° W. {cauda, tail; 

 spinosus, spined.) 

 Seopelns caudUpinosiis, Johnson, Proc. Zool. Soc. Lond., 18G3, 42, Madeira; Gt'iNTHEK, Cat., v, 



416, 1864. 

 Notoscopelus caudispinosus, GooDE & Bean, Oceanic Ichthyology, 85, fig. 96, 1895. 



* Head 3V, (4 in specimen examined); depth 4%; D. 20 to 23; A. 18 to 20; scales 40. Lnminous 

 spots not described, probably as in M. ungiislideiis, a white spot on back of tail ; elongate, com- 

 pressed; head long, slender, the snont pointed, the profile not much rounded; preopercular 

 margin very oblique; mouth large, maxillary not dilated behind, 13 in head; eye moderate, 4 

 in head. Dorsal falcate, longer than anal; pectorals minute, not nearly reaching ventrals. 

 Length 33^-2 inches. Cortez Banks, near San Diego, in 45 fathoms. (Eigenmann.) Not evidently 

 different from M. anfiu.sddeuK ; a specimen examined by us, in poor condition, agrees perfectly with 

 Liitken's account condensed above, so far as its characters can be ascertained. Opoxus, short; 

 Xeip, hand.) 



