32 On a New Genus of the Gadide. [No. 1, 
Description of a supposed new Genus of the Gadide, Arakan.—By 
Lneut.-Col. 8. R. Trcxetn, Bengal Staff. Plate I. 
[Author’s date, October, 1862. ] [Received 8th June, 1864. ] 
Order. Ma acoprery@Il SUBBRACHIATI. 
Family. Gapipz. 
Genus. AstHENnuRvS (mihi). 
(acGevys feeble and Ovpa Tail). 
Body rounded—very little compressed—head small, muzzle short, 
mouth wide with a single row of minute teeth in each jaw, and a 
band across the anteal part of the palate. Scales of a medium size. 
No lateral line visible. Fins; two dorsals and two anals, joined by 
intermediate detached rays, which are partially membraned. The 
anterior dorsal and anal, quadruple the height of their posterior 
fellows. Ventrals jugular and filiform. Caudal bilobed and very small. 
Brancheostegous rays 7. 
Astumnurvs Atripinnis. Tickell. 
Specimen 52” long. The largest of 4 or 5 observed, Akyab harbour. 
Arakan. October 15th, 1862. 
Structure. See above for Genus. Body lengthened in the portion 
of the tail behind the Ist dorsal. Head small; snout short and blunt. 
Gill plates smooth and smooth-edged, their divisions not very distinct : 
but suboperculum large: scales medium-sized, semitransparent and — 
deciduous. Along the back, from occiput to Ist D, a mesial groove, 
with a ridge along each side for the whole length of the fish to caudal. 
A deeper groove along mesial belly, in which the ventrals can lie 
encased. Intermaxillary long and narrow, and set with a row of 
minute pointed teeth jammed close together. Mandibles with a similar 
row, smaller still. Rest of mouth smooth. Tongue short, round, tied 
down to floor of mouth. Scales round at free edge, concentrically 
furrowed; about 67 from gill cover to base of C and 14 tiers. Air 
bladder large. Its shape and that of the intestines could not be ascer- 
tained, as the specimen examined had been a long time in spirits. 
Fins. Ast D 20, detached rays 15—2nd D 20.—P, 21.—V 5.— 
A 20, detached rays 12—2nd A 26.—C 6-18-6. 

