
| 
| ; 
. ¢ Unio subrostratus, Say, 
Be. . teniatus, Conrad, 
i ’ torsus, Raf. 
Ti. . 
i ; trapezoides, Lea, 
if , teres, Raf. 
| ‘ _ triqueter, Raf. 
> 
i] ' truncatus, Raf.- 
| E t tuberculatus, Raf. 
1 
t i triangularis, Raf. 
i : : torulosus, Raf. 
i ee : -tenebrosus, Conrad, 
} trabalis, Conrad, 
: undatus, Barnes, 
; verrucosus, Raf. 
* _ vibex, Conrad, 
velum, Say, — 
s viridis, Raf. 
a 
eat eer a 
Oe ite te aa P DMPO + re 
pile ti Saale al 
’ Alasmodonta costata,Raf. 
; complanata, Barnes, 
ie confragosa, Say, 
*  edentula, Say, 
- marginata, Say, 
* . margatitifera, 

ALASMODONTA. 




72 
interruptus, Say, 
anodontoides, Lea, 
triangularis, — Barnes, 
formosus, Lea, 
cuneatus, Swainson, 
donaciformis, _ Lea, 
elegans, Lea, 
verrucosus, Barnes, 
tuberculatus, Val. 
( lateralis, Raf. 
sintoxia, - Raf. - 
epachostea, — Raf. 
4 mytiloides, Raf. 
rubra, Raf. 
pyramidatus, Lea, 
gibbosa,. Raf. 
perplexus, Lea, 
_ trigonus, Lea, 
tuberculatus, Barnes. 
“* 
rugosa, . Barnes, 
Symphynota com- 
- planata, Lea, 
scriptum, Raf. 
3 Ate margaritifera, Lam. ere 
Alasmodon. arcuata, Barnes, pee 
2 , Ml ; 
