1878.] 633 [Cope. 
This genus is Curimatus with a clupeiform branchial apparatus. In 
both the species the rakers on the anterior four arches are bristle-like, 
while those on the fifth resemble somewhat the pharyngeal teeth of Catos- 
tomide, although flexible. 
This genus has never been distinguished from Curimatus until the 
present time: It is not unlikely that the second species included by Spix in 
Anodus (An. latior) is a Curimatus, but the A. elongatus must ‘be regarded 
as the type of the genus. Cuvier established Curimatus on the C. cypri- 
notdes (Salmo edentulus Bl. fide Gthr.) but included in it erroneously the 
Anodus elongatus, in which he is followed by Giinther. 
Since the above was written I learn that Professor Gill has described this 
genus under the name of Hlopomorphus, in a recent number of a popular 
journal. 
Char. Specif. General form slender, head elongate, and with acuminate 
muzzle, with the mandible projecting, beyond the premaxillary border. 
Length of head entering total without caudal fin, three and two-thirds 
times ; depth of body at dorsal fin, less than one-sixth of the same. Eye 
large, one sixth of length of head entering one and one-fourth times into 
length of muzzle and interorbital space, which are thus equal. Opercular 
bone as long as deep; interoperculum large ; extremity of maxillary ex- 
tending a little beyond vertical line from anterior rim of orbit. 
Radii; D.110; A. 1,10; V.11; P.19: Base of first dorsal ray 3 mm. 
nearer end of muzzle than base of dorsal fin, pectoral fin reaching half way 
to ventrals, and ventrals half way to anal. The scales are small, in about 
128 transverse rows, and at the origin of the anal fin in 23 longitudinal 
rows. The origin of the ventrals is below the middle of the dorsal fin. 
Total length M. .075. 
Color blackish above and one-third way down the side ; sides and abdo- 
men, with sides of head silvery. Dorsal and caudal fins dusky and with- 
out spots. End of mandible black. 
Coll. of 1873 ; numerous specimens. 
53. ANODUS STEATOPS, sp. nov. 
While the preceding species has rather clupeiform character, the present 
one looks like a Hemiodus, and particularly the H. microlepis, with which 
it was found associated in the collection. It differs much from the H. me- 
lunopogon in the even lips, and the extensive adipose membrane which 
closes the eye to an even greater degree than is found in the H. microlepis, 
reducing it to a vertical fissure. Radial formula D. I. 10; C. 3419+ 3; 
A. I. 11; V. 12; P. 19, reaching half way to ventrals; ventrals reaching 
half way to vent. The ventrals originate below the middle of the dorsal 
fin, which originates exactly half way between the end of the muzzle, and 
13-14 
the base of the superior caudal fulcra. Scales small, 3 . The general 
10 
form is slender, the depth entering the length less the caudal fin 5.5 times ; 
and the length of the head entering the same 3.6 times. The diame - 
