250 MR. G. B. SOWERBY ON NEW SHELLS. [Apr. 28, 
brevissimo, margine dorsali utrinque valde declivi excavato ; mar- 
gine interno obscurissime denticulato. 
Hab. Agulhas Bank, S. Africa. 15 fathoms. 
Mus. Taylor. 
SoLENELLA suBzqQuaLis. (Pl. XXI. fig. 5.) 
S. testa subovata, subequilaterali, tumidiuscula, breviuscula, latere 
postico lato, obsolete biangulato, inter angulos radiatim subde- 
presso, margine dorsali rectiusculo, margine ventrali abrupte sur- 
sum acclivi ; latere antico angustiusculo obtuso, margine dorsali 
subdeclivi, margine ventrali abrupte sursum acclivi. 
Hab. Rio Janeiro. 
Mus. Leckenby. 
This third species of its genus is intermediate between the former 
two in its lateral proportions. In S. norrissii the anterior is much 
the shorter side; in S. cumingii the posterior is the shorter. The 
present species is equilateral. 
LEDA IRRADIATA. 
L. testa parva, ovata, radiatim nitente, minute concentrice lirata, 
tumida, subequilaterali ; latere postico subacuminato, versus ter- 
minum radiatim vix depresso ; latere antico acuminato, ad termi- 
num arcuatim elevato ; lunula lata. 
Hab. China Seas. 
Mus. Taylor. 
A pretty little species, showing a brilliant irradiation resembling 
that of the cat’s-eye jewel. 
DoLABRIFERA BRAZIERI. 
D. testa recta, planiuscula; apice elevato, recto, crasso, intus ro- 
tundato, convexo, extus concavo ; margine postico declivi, concavo, 
margine labiali rectiusculo, antice incurvo, sinuato ; margine sinis- 
trali rectiusculo. 
Hab. Northhead, Botany Bay (Mr. Brazier). 
Only two specimens of this, the first species of the genus found on 
the south-west coast of Australia, were taken by Mr. John Brazier. 
No note seems to have been made of the character of the animal; but 
the shell, which is large, differs from that of other known species. 
HeELICcINA MANGOENSIS. 
H. testa pallide lutea, supra aurantia, trocheformi; anfractibus con- 
vexis, infra medium carinatis, supra carinam spiraliter liratis, 
infra carinam subplanulatis, leviusculis ; carina lata, declivi, 
subtus vie crenulata; apice obtuso ; apertura trigona; margine 
basali convexiusculo. 
Hab. Mango Island, Fijis (Mr. Brazier). 
Unfortunately only one specimen of this remarkable Helicina has 
beck taken. It is similar to H. josephine, but much more convex 
above. 
