Cope] 682 [May 17, 
PLECTOSPONDYLI. 
STERNOPYGIDA. 
42, CARAPUS FASCIATUS Pallas. 
Coll. 18738-1877. 
43. STERNARCHUS BONAPARTII Castelnau. 
Coll. 1877. 
44, STERNARCHUS ALBIFRONS Linn. 
Coll. 1877. 
45. STERNARCHUS SCHOTTI Steindachner. 
Coll. 1877. 
46. STERNARCHUS BALAINOPS, sp. NOV. 
Profile oblique, with a depression between the orbits; snout short, and 
much narrowed. Lower jaw large, projecting beyond the upper both an- 
teriorly and laterally, enclosing the latter somewhat as in a whalebone 
whale. The fissure of the mouth is short, only reaching the vertical line 
from the anterior nostril. Eyes small, without free border, much nearer 
the snout than the gill opening, one-twelfth the length of the head, which 
latter enters the length without caudal fin, 8.5 times. The depth at the 
base of the dorsal thong is equal to the length of the head. Anal radii 171. 
Scales very large, in only nine longitudinal rows at the base of the dorsal 
thong. Color olivaceous, with a pale dorsal band which reaches the dorsal 
thong, and a pale narrow band on each side near the dorsal band. Length 
M. .165; length to origin of anal .020; length to base of dorsal thong .096. 
This species resembles remotely the S. seHottii of Steindachner, but differs 
from it and from all the other species in the much enlarged mandible and 
the large scales. 
Coll. 1877. 
47. RHAMPHOSTERNARCHUS MACROSTOMA Gthr., Catal. Brit. Mus. VIII, 
p. 4. 
Coll. 1877. 
48. RHAMPHICHTHYS PANTHERINUS Castelnau. 
Coll. 1877. 
49, STHRNOPYGUS VIRESCENS Valenc. 
Coll. 1878-1877. 
50. STERNOPYGUS TROSCHELIL Kaup. 
Coll. 1877. 
51 STERNOPYGUS MACRURUS BI. Schn. 
Coll. 1877. 
CHARACINID A. 
52. ANODUS MELANOPOGON, sp. nov. 
Char. Gen. Jaws edentulous ; abdomen not serrate. Branchial fissures 
very extensive. Branchial arches furnished with long rakers, which are 
present on the fifth arch as well as the others. 
