1905-6.] M. Louis Dollo on Neobytldtes Brucei. 
175 
“ Brotulids having the body elongate, compressed, covered with 
small scales, and the head also scaled. Lateral line incomplete, 
obsolete posteriorly. Eye moderate. Snout moderate, rounded, 
slightly produced, the lower jaw slightly included. No barbel. 
Teeth villiform, in narrow bands in jaws and palatines. Vomerine 
teeth in V-shaped patch. Two weak spines at angle of preoper- 
culum, and a stronger one at the angle of the operculum. Gill- 
openings wide, the membranes deeply cleft and not attached to the 
isthmus. Vertical fins united. Ventrals reduced each to a bifid 
ray. Branchiostegals, 8. Pseudobranchise present, but small. 
Air-bladder present. Type, Neobythites Gillii .” 
En outre, dans V Oceanic Ichthyology , les Naturalistes americains 
admettent trois especes de Neobythites pour l’Atlantique : 
(1) N. Gillii , Goode et Bean, 1886, . Ill fathoms. Albatross. 
(2) N. marginatus, Goode et Bean, 1886, 209 „ Blake. 
(3) N. crassus, Vaillant, 1888, . 4255 metres. Talisman. 
5. Avec Y Investigator * et les nouvelles campagnes de Y Albatross, 
les especes de Neobythites se multiplient, et, alors, arrive la tendance 
a la creation de sous- genres, .ou meme de genres nouveaux etroitement 
allies. 
(Test ainsi que M. S. Garman, Assistant au Museum de Cam- 
bridge (Etats-Unis), definit,f de la maniere ci-apres, son genre 
Holcomycteronus : 
“ Closely allied to Neobythites, but differing in absence of 
preopercular spines, in ventrals and in pectorals. The body is 
compressed, high at the nape, and tapers to slender in the tail. 
Head massive, deeper than wide, convex on the crown, covered 
by scales. Snout short, broad, thick, blunt. Mouth large, 
anterior ; intermaxillary forming the upper border. Teeth small, 
equal, very numerous, in wide villiform bands on jaws, vomer, 
palatines, basibranchials, and pharyngeals. Nostrils small, lateral, 
* A. Alcock, A Descriptive Catalogue of the Indian Deep-Sea Fishes in the 
Indian Museum : being a revised Account of the Deep-Sea Fishes collected by 
the Royal Indian Marine Survey Ship Investigator , Calcutta, 1899, p. 79. 
t S. Garman, “The Fishes (Reports on an Exploration off the West Coasts 
of Mexico, Central and South America, and off the Galapagos Islands, in charge 
of Alexander Agassiz, by the U.S. Fish Commission Steamer Albatross, during 
1891, Lieut. -Commander Z. L. Tanner, U.S.N., commanding),” Mem. Mus. 
Comp. Zool. Harvard Coll., 1899, vol. xxiv., p. 162. 
