302 
Mr. A. Alcock on the Bathybicd Fishes 
Bathygadus, Gtlir. 
7. Bathygadus longijilis , Goode & Bean. 
Bathygadus longijilis , Goode & Bean, Proc. U. S. Nat. Mus. yiii. p. 599 ; 
Gunther, Zool. ‘ Challenger ’ Exp. xxii. p. 157. 
Hymenocephalus longijilis, Vaillant, Exp. Sci. ‘ Travailleur 1 et 4 Talis- 
man/ Poiss. pp. 218-221, pi. xxiii. fig. 1. 
A large female specimen, Ilf inches long, with gravid 
ovaries. 
It has the radio-squamal formula 
B. 7. D. 11 140 circ. P.15. V. 8. 
L. lat. circ. 150. L. tr. circ. 25 through vent. 
The fourth branchial cleft exists, though it is not apparently 
functional. The stomach is siphonal ; the intestine coiled, 
with about twenty-two large long pyloric caeca. The liver 
and spleen are very large, and the air-bladder is well- 
developed. 
A smaller male(?) specimen, 8 inches long, with the same 
radio-squamal formula and with the barbel measuring more 
than § the length of the head. 
Station 105, 740 fathoms. 
Physostomi. 
Family Scopelidae. 
Scopelengys, gen. nov. 
Apparently nearly allied to Scopelus , Gthr., and to Nano - 
brachium , Gthr. ; but as the single specimen for which the 
generic distinction is claimed is entirely denuded of its 
integuments down to the muscles, its exact position among 
the Scopelidae cannot be accurately defined at present. 
Head and body compressed. Eye small. Mouth very 
wide ; the maxilla dilated behind. Acute villiform teeth, in 
bands uncovered by the lips in the jaws, and in the palatines 
and vomer. Gill-openings very wide ; gill-covers complete. 
Pseudobranchiae rudimentary. Dorsal fin near the middle of 
the body, short ; an adipose dorsal. Anal fin short. Caudal 
forked. Pectorals well developed. Yentrals with eight rays. 
[Scales, if present, very deciduous.] No air-bladder. Pyloric 
caeca present in moderate number. 
