138 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



II. Voraerino tootli nnisorinl, some of them oaiiine-liko; iiiaxillary teeth biserial. 

 A. Dorsal bt\i;i!iiiinf; above root of jiectoral. 



1. Clvit of mouth extending beyond middle of eye. 



a. Tail very long and slender Uroconger 



III. Vomerine teetli absent. 



A. Tail very short. 



1. Teeth in asingle unbroken row in each jaw Coloconger 



B. Tail as long as the trunk. 



1. Teeth, viiliform in broad bands in the jaws and in a broad continuous patch on the palate. 



Promyllantor 



UROCONGER, Kaup. 



Uroconger, Kaup, Apodes, 110.— Gunther, Cat. Fish. Brit. Mus., viii, 43. — Jordan & Davis, Rep. U. S. F. 

 C.,' 1888 (1891), 658. 



Anguilloid apodals with long, whip-like tail and without scales. Maxillary teeth bi- 

 serial; vomeriiie teeth uniserial, some of them canine-like; dorsal fin inserted above the 

 pectoral origin; month-cleft i)assing behind the middle of the orbit. 



The unique species until ISSS was Uroconger Jej^turus (Richardson), Kaup, from the west- 

 ern and southern Pacific. 



UROCONGER VICINUS, Vaillant. 



Uroconger vicinus, Vaili.ant, Exp. Sci.,Travailleur et Talisman, Poissons, 1888, 86, pi. Vl, figs. 1, la, 16. 



A species distinguished from U. lepturus by a more compressed, higher body and 

 tail, the thickness one-fiftieth, the height one-twentieth of total; by the presence of two 

 sti'oug teeth, one behind the other, on the anterior portions of the vomer, and by a space 

 separating the gill openings which is considerably greater than the diameter of these 

 openings. 



TJ. vicinus, the sole representative of this genus in the Atlantic, was obtained by the 

 French explorers from the Banc d'Arguin, 1,495 meters; off Soudan, 0.32 meters, and at the 

 Cape Verde Islands, in 633 meters depth ; three from the first locality, one from each of the 

 others. 



A young fish, provisionally placed in this species, was taken by the Albatross at station 

 2161, in 146 fathoms. (Figure 160.) 



CONGERMUR^^NA, Kaup. 



Ophisoma, Swainson, Nat. Hist. Classn. Fish., ii, 1839, 334 (in part).— Jordan & Davis, Rep. U. S. F. C, 



1888 (1891), 659. 

 Congermurama, Kaup, Cat. Apodal Fishes, 1858, 108. 

 Congermntna, Gunther, Cat. Fish. Brit. Mus., viii, 1870, 200. 

 (Inathophis, Kaup, Aale Hamburg. Museum, 1859. 



AnguUloid apodals characterized by a scaleless body, small mouth, large muciferous 

 cavities in the anterior portions of the skull, teeth in Jaws and on vomer small, those in 

 the outer row not forming a cutting edge, arranged in bands, dorsal origin above the gill 

 opeuiugs, mouth terminating below or in advance of the middle of the orbit. Lips thick. 

 A long, whip like tail. 



Gongermurwna oi^curs iu the Mediterranean and on botli sides of the middle Atlantic, 

 and in the deep water of the Pacific. G. fiuttulata, Giinther (Challenger Report, xxu, 252), 

 was obtained by the CliaUcngcr off the Fijis in 315 fathoms. 0. lonf/icauda, Alcock was 

 taken in the Andaman Sea, in 265 fathoms, and C. prorigenoH (Gilbert) from ofl' California, 

 401 fathoms. 



GONGERMURWNA FLAVA, Goode and Beax, n. s. (Figure 159.) 



Lips somewhat thickened. Snout long, about twice diameter of eye, which is contained 

 six times in length of head. Lower jaw projecting far beyond the ui>per. Anterior nostril 

 in short tube, posterior nostril pore-like, in advance of eye, and above the horizontal line 

 of its diameter. Cleft of mouth extending very slightly behind middle of eye. Teeth iu 



