Ae Ne OD ON: 
Prate XIV. 
Species 45. (Mus. Cuming in Brit.) | 
ANODON GRACILIS. An. testa tenni, subcompressd, an- 
gusta, levigatd, elongatd, obscure olivaced; latere | 
postico elongato, aeuminato, peroblique biangulato, 
margine dorsali compresso, subalato, subconvexo, mar- 
gine laterali obliquo, margine terminali oblique trun- 
cato, margine ventrali equaliter convexo ; latere an- 
tico brevissimo, ongusto, umbonibus tenuiter undatin 
rugatis. 
NARROW ANODON. 
row, smooth, long, dull-olive ; posterior side elon- 
gated, acuminated, very obliquely biangular, dorsal 
THE Shell thin, subcompressed, nar- 
margin compressed, somewhat wing-shaped, rather 
convex, lateral margin oblique, terminal margin ob- 
liquely truncated, ventral margin equally convex ; 
anterior side very short, narrow, umboes_ finely 
wrinkled in waves. 
Lea, Pro. Zool. Soc. 1850, vol. vit. p. 57. pl. 34. f. 119. 
Hfab. Isl. Panay, Philippines ; H. Cuming. 

Species 46. (Mus. Cuming.) 
ANopon Paryracets. An. testd tenui, subrhomboided, 
gibba, pallidé olivaced, viridi radiata, levigata, intis 
prope umbones fulod, prope margines cerulescenti ; 
latere postico oblongo, obscure biangulato, margine 
dorsali convexo, margine terminali subtruncato, medio 
complanato ; latere antico subangusto, rotundo, um- 
bonibus prominentibus, rugis magnis paucis undulatis. 
THe raryraceous ANopon. Shell thin, subrhomboidal, 
gibbous, pale olive, rayed with green, smooth, within 
bluish near the margin, yellowish near the umboes ; 
posterior side oblong, obscurely biangular, dorsal 
margin convex, terminal margin subtruncated, rather | 
flat in the middle; anterior side rather narrow, 
rounded, uwmboes prominent, undulated with few 
large wrinkles. 
ANTHONY. 
Hab. Vennessee. 
Species 47. (Mus. Cuming. in Brit., and see PJ. XV. 
Fig. 47 a.) 
ANODON SUBCYLINDRACEA. An. testd tenui, levigatd, 

inflaté, oblongo-ovatd, angustd ; latere postico per- 
oblique biangulato, margine dorsali brevi, elevato, 
margine laterali obliquo, termino subtruncato, infra 
acuminato ; latere antico brevi, rotundo, margine dor- 
sali subtruncato, umbonibus undulatin rugosis. 
THE SUBCYLINDRICAL ANODON. 
inflated, obliquely ovate, narrow ; posterior side very 
Shell thin, smooth, 
obliquely biangular, dorsal margin short, elevated, 
lateral margin oblique, end subtruncated, acuminated 
beneath ; anterior side short, rounded, dorsal margin 
subtruncated, the umboes with wrinkled waves. 
Lea, Obs. vol. ii. p. 106. 
Hab. Oak Orchard Creek, New Orleans. 
The variety represented on Plate XV. will best represent 
the species, as being more cylindrical. 
Species 48. (Mus. Cuming in Brit.) 
ANxopon Foorrana. 
longi, stramined, aurantia ef ad latera obscure fused, 
An. testd inflata, tenui, ovata, ob- 
levigatd ; latere postico elongato, biangulato, ad ter- 
minem basalem acuminato, margine dorsali brevi, 
recto ; latere antico brevi, rotundo, umbonibus ovalibus, 
levigatis, prominentibus. 
Foor’s Anopon. Shell, inflated, thin, ovate, oblong, 
straw-coloured, and orange with dull brown at the 
sides, smooth; posterior side elongated, biangular, 
acuminated at the basal termination, dorsal margin 
short, straight; anterior short, rounded, umboes 
oval, smooth, prominent. 
Lea, Obs. vol. iii. p. 63. pl. 20. f. 44. 
Hab. Fort Winnebago. 

Species 49. (Mus. Cuming in Brit.) 
ANODON BENGALENSIS. 
antice concentricée rugatd, tenui, obscure fused, intis 
ef extis ad umbones purpurea ; latere postico oblongo, 
valide angulato, margine dorsali brevissimo, margine 
An. testd trapezoided, gibbd, 
laterali obliquo, margine ventrali recto ; latere antico 
brevi, rotundo, superné subcuneato. 
Tue BenGat ANopon. Shell trapezoidal, gibbous, con- 
centrically wrinkled in front, thin, dull brown, 
purple inside, and without at the umboes ; posterior 
side oblong, with a strong angle, dorsal margin very 
June, 1867. 
