Jordan and Evermatifi. — Fishes of North America. 583 



as the dorsal and reaching nearly to the tail, which is forked; adipose 

 dorsal small ; pectoral and ventral composed of weak rays, the origin of 

 the latter nearly midway from base of pectoral to vent, and tips of 

 longest rays reaching to vent. Branchial arches 4, long and slender; 

 very elongate gill rakers, 10 + 15 in number, the longest twice as long as 

 eye. Velvety black, with a number of luminous spots. 



This species was obtained by the French explorers at depths of 710 

 to 1,290 fathoms in the Gulf of Gascony and off the Azores. It has since 

 been found in considerable numbers in the western Atlantic by the 

 Albatross. (Goode & Bean.) (/3a^)t'r, deep ; ^iP^tw, to love.) (Eu.) 



Neosiomii hathyphilum, Vaillant, La Nature, 1884, 184; name and rougli figure only. 

 Cydothone Imtliypiht, Vaillant, Travailleur et Talisman, 9G, pi. 8, figs. 1, In, 1888, Gulf of 

 Gascony; Azores; Goode & Bean, Oceanic lehtliyology, 100, fig. 118, 1895. 



Subgenus SIGMOPS, Gill. 

 875. CTCLOTHONK ELOXG.lT.i (GUnthcr). 



Head 4^ ; depth 7. D. 13; A. 27 to 30; P. 11; V. 7. Vent midway 

 between root of caudal fin and eye. Eye moderate, | of snout, about i 

 length of head, its diameter less than width of iuterorbital space. Mouth 

 exceedingly wide, maxillary extending to the posterior angle of the 

 operculum, with a number of largo teeth at considerable distances, with 

 interspaces filled with smaller teeth ; intermaxillary with 2, and mandible 

 with about 10, large teeth. Infraorbital bone dilated, covering only about 

 \ of cheek ; ojiercular bones thin. Gill laminae short; gill rakers long; 

 branchiostegals 11, very short. Dorsal fin inserted a little behind the ver- 

 tical from vent, its greatest height exceeding that of the body at the point 

 of its origin; anal fin directly under the dorsal, much longer, extending 

 nearly to root of caudal, highest in front ; pectoral narrow, slender, 

 placed low, its length f that of the head ; distance of ventral from vent 

 contained i in its distance from pectoral. Scales have apparently been 

 present, on a part at least, of the body, namely, the tail and ventral 

 line. Luminous organs very pink, with silvery margins, in two rows on 

 either side of the abdomen. Color black. 



This species was obtained by the Challenger south of New Guinea, in 

 800 fathoms, and off Banda, in 360 fathoms. It has been found in consider- 

 able numbers in the deep waters off the American Coast by both the Blake 

 and the Challenger, by the Investigator in the Indian Ocean, and by the 

 Jlbatross in the Gulf Stream at station 2039 in 2,361 fathoms. (Goode & 

 Bean.) {elongatus, elongate.) 



Gonodoma cUmfjahim, GCnthkr, Ann. and Mag. Nat. Hist., ii, 1878, 187, New Guinea ; Banda. 

 Sigmops atigmalkni'*- Gii.i., Proc. U. S. Nat. Mus., vi, 1883, 256, Gulf Stream, in38° 19' 26" N., 



68° 20' 20" W. (Type, No. 33201. Coll. Albatross.) 

 CycloOioiie elongalii, Goode S: Bean, Oceanic Ichthyology, 101, fig. 119, 1895. 



276. YARRELLA, Goode & Bean. 



Yarrella, Goode & Bean, Oceanic Ichthyology, 103, 1895, {hlack/ordi). 



Body elongate,^ compressed, covered with rather large, thin, deciduous 

 scales; the lower parts with luminous spots. Head conical, comj)re8sed; 



* The type ofSigmops stiijmaticus is an imperfect individual, from which the luminouaspotshad 

 been rubbed off before it was examined.— Goode <£• Bean. 



