ANODON.—Ptate XIX. 
tere postico elongato, costd angustd valida prope mar- 
ginem superiorem, oblique radiato, margine dorsali ele- 
vato, convexo, margine lateral subobliquo, ad terminun 
inferiorem rotundato, margine ventrali prope termi- 
num contracto; latere antico brevissimo, umbonibus 
levigatis. 
Tur pare Anopon. Shell oblong, cylindrical, thick, 
orange-brown, smooth, pale rose within; posterior 
side elongated, obliquely rayed, with a narrow strong 
rib near the upper margin, dorsal margin elevated, 
convex, lateral margin suboblique, rounded at the 
lower termination, ventral margin contracted near 
the end, anterior side very short, umboes smooth. 
SOWERBY. 
Hab. 
The very cylindrical form of this shell, coupled with the 
almost horizontal rib, distinguishes it from any other with 
which I am acquainted. 

P 


Species 76. (Mus. Cuming in Brit.) 
Anopon tata, An. testd elongata, attenuata, compressa, 
stramined, fasciis viridibus vividis interruptis latis 
radiata, intus prope umbones fulvd ; latere postico at- 
tenuato, ad terminum acuminato, margine dorsali paulo 
convexo, margine ventrali leviter et equaliter conveno ; 
latere antico brevi, subrotundo, umbonibus levigatis. 
Tue wipp Anopon. Shell elongated, attenuated, com- 
pressed, straw-coloured, rayed with bright green, 
interrupted broad bands, fulvous within near the um- 
boes; posterior side attenuated, acuminated at the 
end, dorsal margin a little convex, ventral margin 
slightly and equally convex; anterior side short, 
rather round, umboes smooth. 
RaAFINESQUE. 
Hab. 

P) 
