: 
. 
| 68 
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| » Unio altilis, Conrad, 
“ pustulosus, Lea, 
: bullatus, ; ht 1 
-ventricosus, Barnes, 
’ ecardium, Raf. occidens, ‘Lea, 
subevatus, ~~ Lea, 
' capax, Green, Gh g temriets ff 
», ceelatus, Conrad, 
camptodon, Say, : : 
oe Ss naviformis, Lam. 
 eylindricus, = Say, solenoides, Raf. 
» cor, Conrad, 
» congareus, Lea, 
‘ Esopus; Green, 
* eyphia, Raf. cicatrieosus,~ Say; 
varicosus, - renee ep caeni 
' *eostatus, Raf. undulatus, Barnes, 
: 1 . ecastaneus, Lea, Piet a Ae 
Peart an Says sea ep aed Law. [ Re omen PS vale: Sy 
* teariosus, Say, practi ge 
ellipticus, ? Barnes, 
; ® _compressus, Symphynota com- 
pressa, Lea, 
> cordatus, Raf. obovata, _ Raf. 
« declivis, Say, cer bode CAntud | Lewd 
» decisus, Tea, — PartOvnarrwd « 
tee cuprea, (young,) Raf. 
* dilatatus, Raf. — atroviolacea, Raf. 
. gibbosus, Barnes, 
* There is so great a difference in the colour of the epider- 
mis in a variety of this shell, that it may be considered dis- 
tinct by some Conchologists. The specimen described by RaFi- 
NESQUE had a yellow epidermis, that of BARNES was black. I 
found both varieties in the streams of the Tennesee Valley, in 
Alahama. 
+ Mr. Lea gives carinatus, of BARNES, among the synonymes of 
this species, but it is very distinct. It is the fasciata, of Rari- 
NESQUE.. 

