Jordan and Evermann. Fishes of North America. 569 



Scopelus coccoi, Cocco, Giorn. Sci. Litt. Art. Sicilia (No. 77), Palermo, 1829, 143 ("Scopelo de 

 Cocco"), Palermo; GONTHEK, Cat., v, 413, 1864; GUNTHER, Challenger Report, XXXH. 

 Pelagic Fish.-s, :',(), 1887; LUTKEN, Spolia Atlantica, n, 236, 1892. 



Alysi i lificatn, LO\VK, Pror. Xoiil. Soc. Lond., 1839, 87, Madeira. 



Stenobrachitis coccot, GOODE & BEAN, Oceanic Ichthyology, 91, 1896. 



852. RHOOSCOPELUS A Ml UK. K (Liitken). 



Head 3f ; depth 4$. D. about 10 ; A. about 20. Two caudal spots ; a 

 posterolateral spot ; 3 supra-anal spots forming an oblique series ; anal 

 spots about 5 or 6 + ^ r 10, the series slightly interrupted; spots along 

 belly in continuous series. Body deep anteriorly, tapering to a slender 

 caudal peduncle ; snout pointed, projecting beyond lower jaw; preopercle 

 with its margin considerably oblique. Pectoral long, falcate. Open 

 Atlantic and Indian Ocean. (Liitken.) Common in the Gulf Stream 

 along our coasts with the preceding, of which Goode &, Bean think it may 

 be a sexual variation. (Named for Capt. A. T. Andreas, who collected 

 this and other oceanic fishes for the museum at Copenhagen.) 

 Scopelus <ttiflr>'ti', LTTKEN, Spolia Atlantica, Scopelini, 25, 1892, North Atlantic. 

 Stenobrachins andrete, GOODE & BEAN, Oceanic Ichthyology, 91, fig. 104, 1895. 



853. RHINOSCOPELUS RARUS (Liitken). 



Head 34; depth 44,. D. about 14; A. about 20; scales 39. Caudal spots 

 2 ; posterolateral 1 ; anal spots about 6 -f- 7 ; supra-anal spots not forming 

 a straight line, usually 2 in number ; thoracic and ventral spots few, not 

 equidistant. Body rather short and plump, the caudal peduncle rather 

 slender; snout moderate, projecting beyond lower jaw ; pectoral short 

 and small, not reaching the small ventral ; preopercular margin not very 

 oblique. Eye moderate. Open Atlantic, west to 50 W., 33 N. (Liitken.) 

 (rartis, rare.) 



Scopelus rarus, LUTKEN, Spolia Atlantica, 26, ir, 1892, North Atlantic. 

 266. MYCTOPHUM, Rafinesque. 



Myctophum, RAFINESQUE, Indice d'lttiologia Siciliana, 56, 1810, (pnnclatum). 



Scopelus, CUVIER, Regnc Animal, Ed. i, 56, 1817, (humloldti). 



Nyctoplms, Cocco, Giorn. Sicil., 44, 1829, (emended orthography of Myctophvm). 



Body oblong, compressed, covered with cycloid scales, those in the 

 lateral line not much enlarged ; the caudal peduncle rather slender. Head 

 short, compressed, with limb of preoperculum nearly vertical. Mouth 

 large, the jaws about equal ; premaxillaries long and slender ; maxillaries 

 well developed. Snout more or less blunt and declivous. Teeth in villi- 

 form bands on jaws, palatines, pterygoids, and tongue. Eye large. Gill 

 rakers long and slender. Air bladder small. Dorsal fin entirely in front 

 of anal, overlapping it little or not at all; ventrals 8-rayed, under or 

 but slightly in front of first dorsal rays ; pectorals well developed ; soft 

 dorsal slender. Precaudal photophores 2; superanals in two groups, 

 with one or two posterolaterals above the interval between them. Species 

 rather numerous, widely distributed. (Name unexplained, iisually derived 

 from 7>t'f, night, and <f , light ; hence altered by Cocco to Nyctophus. 

 But we see no warrant for this supposed etymology, liafinesque did not 

 know that the spots were luminous.) 



