

SYNOPTICAL TABLE 
oe 
OF THE 
SPECIES OF AMERICAN NAIADES, 
WITH 
SYNONYMES. 
UN iO: 
Z S, gait 3 li ’ R 
Unio abruptus, > Say, ; oi, ne Fe Rey 
. arctatus, Conrad, 
» arcus, - Conrad, 
» apiculatus, Say, 
» asper, - Lea, 
/ acutissimus, Lea, 
* angustatus, Lea, 
9 peer, te, = lugubris, Say, 
megaptera, Raf. 
’ alatus, Say, 3 Symphynota alata, Lea, 
rae ae 1 ot-+Mlabamensis, Conrad; Symphynota inflata, Lea, 
 * Unio lemovince, FER. is U: ater, Nittson. See Synopsis 
-methodica Molluscorum. By M. MEnxe. Mr. Say supposing the 
ater of Nit. a good species, substituted the name lugubris for U. 
ater of Lra. 
tI propose this name for the fine shell whose specific inflata 
is preoccupied in the genus Unio. It is peculiarly abundant in 
the Alabama, rare in the Black Warrior, and has as yet been + 
found in no other river. 

