49 



^ . 10. Leda fastiuiosa, A. Adams. 



L. testą transoersim ovata sordido albido-fusca concentrice lirata 

 fusca, nif.ida, concentrice ienuiter et regulariter sulcata ; latere 

 antico subproducto ac rotundato, postico angulato ac rostrato, 

 rostro acuminato, margine ventrali postice suhsinuoso et in 

 medio subproducto. 

 Hab. Ne\v Zealand. Mus. Cuming. 



A shiniiig, pale fuscous, ventricose species, very gibbose in the 

 middle, and beautifully grooved transversely ; the beak slender, 

 pointed and recurved. 



11. Leda bellula, A. Adams. 



L. testą transversim ovata, sordide albido-fusca, concentrice lirata, 

 ' liris elevatiusculis subdistantibus, umbonibus prominentibus ; 

 latere antico rotundato, postico rostrato ; rostro acuto, atte- 

 nuato, recurvo ; area lanceolata, valde impressa, liris confertis 

 marginata. 

 Hab. Australia (iii?-. Strange). Mus. Cuming. 

 This is a duU dirty white or light lirovvn shell, concentrically lirate, 

 and with a somewhat curved aud pointed rostrum ; the lauceolate 

 area is deeply impiessed, aud has a promineut ridge on eacU side. 



12. Leda inconspicua, A. Adams. 



L. testą transversim ovata, ventricosula, nitida, fusca, concentrice 

 subtilissime sulcata; latere antico breviore et rotundato, postico 

 longiore, subacuminato ac oblique subtriincato ; area lanceolata, 

 obscura, nymphis prominentibus, margine ventrali regulariter 

 arcuato. 

 Hab. AustraUa. Mus. Cuming. 



A shining light-brown species, rather ventricose concentrically, 

 very finely sulcate, with the posterior side produced attenuated, aud 

 with the end obUquely trmicate. 



13. Leda lugubris, A. Adams. 



L. testą solidu, subgibbosa, triangulari-ovata, nigro-fusca; latere 

 antico declivo,lunula lanceolato-cordata, impressa; latere postico 

 acuminato ac breviter rostrato ; area lanceolata, lata, Icevi ; 

 concentrice lirata, liris validis distantibus postice Jlearuosis ; 

 margine ventrali simplici. 



Hab. ? Mus. Cuming. 



A dark, fuscous, solid shell, having very much the aspect of a 

 Crassatella, with a broad impressed lunule and strong flexuous 

 plicae. 



14. Leda lepida, A. Adams. 



L. testą transversim ovata, ventricosa, nitida, pallide fulva, con- 

 centrice tenuiter sidcata ; latere antico breviore et rotundato. 



No. CCCIV. — Proceedings of the Zoological Society. 



