TELLINA.—Prare XXXIX. 
SOWERBY. 
Hab. New South Wales; G. F. Angas, Esq. 
The right, which is the deeper valve, bends towards 
the left side. i 

Species 223. (Mus. Angas.) 
TeLuina ELLIpTIca. Tel. testa parvd, ovata, depress, 
tenui, albd, levigatd ; latere postico brevi, subacu- 
minato, obscure angulato, post angulum concentricé 
lirato, margine ventrali versus angulum elevato, medio 
valde convexo ; latere antico producto, supra medium 
subacuminato, ligamento brevissimo, conspicuo. 
THe ELLIPTICAL TELurNa. Shell small, oval, depressed, 
thin, white, smooth ; posterior side short, subacu- 
minated, obscurely angular, concentrically ridged 
behind the angle, ventral margin raised towards the 
angle, very convex im the middle; anterior side 
produced, subacuminated above the middle, ligament 
very short, conspicuous. 
SOWERBY. 
Hab. Sydney, New South Wales; G. F. Angas, Esq. 
Of a more narrowed oval form than Zellina subelliptica, 

and more inequivalve. The ligament, which is partly 
imbedded in the Jatter, is prominent in the present shell. 

Species 224. (Mus. Angas.) 
TeLuiIna TorTUOSA. el. testd parvd, albd, solidd, ob- 
longo-ovati, levigatd, lateraliter arcuatd, valould 
dextra quam alteré medio magis compressa ; latere 
postico trigono, angulato, margine dorsali recto, 
declivi, termino truncato, margine ventrali elevato ; 
latere antico producto, margine dorsali recto, sub- 
declivi, umbonibus acuminatis, ligamento minuto, in- 
Josso. 
THE tortuous TELLINA. Shell small, white, solid, 
oblong-ovate, smooth, laterally curved, right valve 
more compressed in the middle than the other ; 
posterior side trigonal, angular, dorsal margin 
straight, sloped, end truncated, ventral margin 
yaised; anterior side produced, dorsal margin 
straight, rather sloped, umboes acuminated, liga- 
ment minute, imbedded. 
SOWERBY. 
Hab. New South Wales; G. F. Angas, Esq. 
The whole shell has a general curve, in which the, 
central convexity is toward the left. 

