ANODON. 
PLATE 
Species 130. (Mus. Cum. in Brit.) 
Axoponta SeneGatensis. An. testd oblongd, subreni- 
formi, compressa, saturate olivaced radiatim et 
concentricée striata, ints salmoned ; latere antico 
angustiusculo, producto, rotundato ; medio sinuati, 
contracto, umbonibus parvis ; latere postico elon- 
gato, arcuato, liris duabus radiato. 
Seneca Anopon. Shell oblong, subreniform, com- 
pressed, deep olive, radiately and concentrically 
striated, 
THE 
anterior side rather 
narrow, produced, rounded; middle sinuated, con- 
tracted, umboes small; posterior side elongated, 
arched, rayed with two ridges. 
Lea. Obs. on Unio, vol. vii. p. 69, pl. 41, f. 140. 
Hab. Senegal. 
salmon within; 
Not unlike Anodon solenoideus, but nearly twice as 
deep in proportion to its length. 

Species 131. (Mus. Brit.) 
ANODON EXULCERATUS. An. testd tenui, compressd, sub- 
rugosi, subtrigond, oblique expanso, pallidé stra- 
mined, fusco lineatd, intis albidd, latere antico 
brevissimo, umbonibus complanatis, leviter undu- 
latis, latere postico alato, expanso, obliqué biangu- 
lato, ad terminum truncato. 
Tue FRETTED Anopon. Shell thin, compressed, subru- 
gose, subtrigonal, obliquely expanded, pale straw, 
with brown lines, white within ; anterior side very 
short ; umboes flattened, slightly undulated ; pos- 
terior side alated, expanded, obliquely biangular, 
truncated at the end. 
Vitis. MS. in Mus. Brit. 
Hab. 2 


Species 132. (Mus. Lea.) 
Anopon LuTEoLus. An testd levigatd, subquadratd, 
lata, subcompressd,  luteo-olivaced, concentricé 
striatd, intuis alba, latere antico brevi, subrotund», 
margine dorsali declivi; medio subcomplanato, 
umbonibus prominulis ; latere postico lato, suban- 
gulato, obscure bilirato, margine dorsali elevato. 
THE YELLOWIsH ANnopon. Shell smooth, rather square, 
wide, subcompressed, yellowish olive, concentrically 
XXXII. 
striated, white within ; anterior side short, slightly 
rounded, with dorsal margin sloped; middle flat- 
tish, umboes rather prominent; posterior side 
wide, subangular, with two obscure ridges, dorsal 
margin elevated. 
Lea. Obs. on Unio, vol. vii. p. 84, pl. 43, f 147. 
Hab. Isthmus of Darien. 

Species 133. (Mus. Brit.) 
Anopon Stewartianus. An. testd lata, expansd, sub- 
globosa, valdé inflata, levigata, pallidé olivaced, 
leviter radiata, intis ceeruleo-albidd, iridescent ; 
latere antico brevi, margine dorsali depresso, brevi, 
recto, ventrali subsinuato ; medio inflato, umbonibus 
prominulis, ad apices tuberculato-undulatis ; latere 
postico producto, subangulato, subacuminato ; liris 
tribus angulatis et fasciis tribus viridibus radiato, 
margine dorsali recto, elevato, margine laterali 
obscure triangulato. 
Strewart’s Anopon. Shell wide, expanded, subglobose, 
much inflated, smooth, pale olive, lightly rayed, 
anterior side 
short, dorsal margin depressed, short, straight, 
ventral slightly sinuated ; middle inflated, umboes 
rather prominent, undulated with tubercles at the 
apices; posterior side produced, subangular, sub- 
acuminated ; rayed with three angular ridges and 
three green bands, dorsal margin straight, elevated, 
lateral margin obscurely triangular. 
Lea. Obs. on Unio, vol. i. pl. 6, f. 17, 
Hab. River Teche, Louisiana. 
bluish white within, iridescent; 

Species 154. (Mus. Brit.) 

Axopon Trautwinianus. An. testd ovato-subglobosd, 
obliqud, levigatd, inflata, iridescenti-viridi, con- 
centrice tenuiter fasciatd, liris viridibus tenuibus 
radiata, intus ceruled ; latere antico brevi, angusto, 
margine dorsali recto, cuneato, ventralt sinuato ; 
medio inflato, umbonibus amplis ; latere postico 
expanso, acuminato, margine ventrali producto, 
laterali declivi. 
Trautwin’s Anopon. Shell ovate-subglobose, oblique, 
smooth, inflated, iridescent green, concentrically 

June, 1870. 
