ANODON SUBSINUATUS. 
THE SUBSINUATED ANODON. 
AINCO DEO: N:. 
Pirate VII. 
Species 14. (Mus. Cuming in Brit.) 
An. testa oblique subovata, tenut, 
inflatd, hianti, levigatd, pallidé olivaced, versus mar- 
gines et postice fuscescenti, intus albidd, pallit impres- 
sione postice sinuatd ; latere antico brevi, infra wn- 
bones depresso sinuato, margine dorsali recto, ared | 
complanaté deflecto termino angulato, margine ter- 
minali subrotundo, infra sursium acclivi, tum emar- 
ginato ; latere postico oblique inflato, oblongo, termino 
subacuminato supra uniangulato, ared postangulari 
trigond, margine dorsali recto, elevato, margine ven- 
trali infra rotundatim expanso, versus terminum sur- 
sum acclivi, umbonibus acuminatis, prominentibus. 
Shell obliquely subovate, 
thin, inflated, gaping, smooth, pale olive, becoming 
brown towards the margins and at the back, whitish 
within, the pallial impression sinuated posteriorly ; 
anterior side short, depressed and sinuated below the 
umboes, dorsal margin straight, bent down, with a 
flattened area, end angular, terminal margin rather 
rounded, sloping upwards below, then emarginated ; 
posterior side obliquely inflated, oblong, the end sub- 
ANopDON GESNERI. 
GESNER’s ANODON. 
niuch less wmequal in form, being much contracted, de- 
pressed, and sinuated im front. 
Species 15. (Mus. Cuming in Brit.) 
An. testé magna, oblongo-subovalt, 
subcylindracea, tumida, solidd, concentrice irregulari- 
ler rugatd, olivaceo-flavidd, postice fascia interrupta, 
lata, vivide viridi inter angulos radiata, intus albida ; 
latere antico brevi, rotundo, ad marginem dorsalem 
subangulato ; latere postico elongato, biangulato, an- 
gulo inferiore ad terminum acuminato, area supra an- 
gulum superioren angustd, wnbonibus inflatis, margine 
ventrali equaliter convexo. 
Shell large, oblong suboval, subcy- 
lindrical, tumid, solid, concentrically irregularly 
wrinkled, yellow-olive, posteriorly rayed with an in- 
terrupted, broad, bright-green band between the 
angles, whitish within ; anterior side short, rounded, 
with a slight angle at the dorsal margin; posterior 
side elongated, biangulated, lower angle acuminated 
at the end, area above the upper angle narrow, um- 
boes inflated, ventral margin equally convex. 
acuminated, with one angle above, postangular area 
trigonal, dorsal margin straight, elevated, ventral 
margin roundly expanded below, sloping up towards 
the end, umboes prominent, acuminated. 
SOWERBY. 
Hub, ——? 
Lua, Obs. on Unio, vi. p. 49. pl. xxxi. f. 109. 
Anodon cataractus, Say ? 
Hab. River Georgia, Uphanpee Creek ; W. Gesner. 
This shell might at first sight be thought to resemble 
Anodon cygneus, but it is much more elongated and cylin- 
drical. ‘The valves are deep, and the umboes are not flat- 
| tened nor wrinkled, but prominent and smooth. 

In some respects resembling Anodon Blainvilliana, but 
April, 1867. 
