1870.] 455 
[Cope, 
POMOTIS, Cuvier. | 
27. PoMOTIS MACULATUS, Mitchill. 
Morone Mitchill, P. vulgaris, Holbr. 
From all the rivers of North Carolina east of the Allegheny Range. 
Identical with specimens from Pennsylvania and Michigan. 
URANIDEA, Dekay. 
28. URANIDEA CAROLINA, Gill. 
Proc. Bost. Soc. Nat. His., 1861, 41. 
Abundant in the French Broad River in Madison County, North Caro- 
lina. 
APHREDODIRUS, Lesueur. 
29. APHREDODIRUS SAYANUS, Gilliam. 
Journ. A. N. Sci., Phila., IV, 81, pl. III; Dekay, N. Y. Fauna, Fishes 
p- 35, pl. xxi., fig. 62. 
Abundant in sluggish waters tributary to the Neuse River in Wake 
County, North Carolina. 
LABIDESTHES, Cope. 
Fam. Atherinide. Premaxillary bones prolonged anteriorly into a roof- 
shaped beak of elongate form, moderately projectile ; reaching posteriorly 
to the line of the orbit: its teeth in several series. Mandible as long as 
the muzzle. No palatine teeth. 
This genus differs from Chirostoma (Atherinopsis, Blkr.) in the duck- 
like muzzle, which is almost exactly like that of the Belonesow beli- 
zanus, though shorter. Like it, the premaxillaries are not codssified, 
and are separated on the superior surface by a groove between the 
median portions. The general characters remind one so of Belonesox, 
as to strengthen the belief in the close relationship existing between Atheri- 
ride and Cyprinodontide, though the former is Acanthop‘erygian, and the 
latter Malacopterygian. 
Labidesthes steculus, Cope. 
Chirostomu sicculum, Cope. Proc. Acad. Nat. Sci., Phila., 1865, p. 81. 
Form slender, the depth contained in the length (without caudal fin) 
seven times; the length of the 
head 4.33 times in the same. 
The eye is large and round, 
contained 3.6 times in the head, 
1.5 times in the length of the 
muzzle and once in the inter- 
orbital space. The top of the 
head and muzzle are plane, the 
latter convex transversely, and 
not exceeded by the extremity 
of the mandible. Front with 
a median ridge. A distinct ?mucous pore above each orbit. The teeth 
