PELECYPODA. 63 
CaRDITA ELATA, Sowerby, n. sp., pl. 3, fig. 67.—Testa 
parva, elata, subtrigona, crassiuscula, alba, concentrice 
sulcata, costis 16—17, subangulatis, leviter crenatis. Umbones 
prominentes, incurvi. Lunula parva, excavata. Margo 
dorsalis posticus valde declivis. Cardo normalis. Pagina 
interna alba, margine crenato. 
Diam. antero-post 4, umbono-marg. 5 millim. 
Hab. Port Elizabeth. 
A curious little species, somewhat the form of an Isocardia. 
I have at present only seen odd valves. 
CARDITELLA CAPENSIS, Smith, Report Lambellib. Voy. 
Challenger, p. 216. For description of the genus see Proc. 
Zool. Soc. 1881, p. 42.—Simon’s Bay. 
CARDITELLA RUGOSA, Sowerby, n. sp., pl. 3, fig. 65.— 
Testa parva, trapeziformis, albida, fusco sparsim maculata, 
radiatim costata, costis cire, 16, rugosis, interstitiis profundis. 
Umbones vix elevati, obtusi, approximati. Lunula elongata, 
impressa. Pagina interna fusca, margine fimbriato. 
}iam. antero-post 6, umbono-marg. 44 millim. 
A little, roughly ribbed, trapeziform species. 
Nuocarpia, Sowerby, gen. nov.—Testa squivalvis, valde 
inequilsteralis, extus cancellata, cardine angusto, obsolete 
bidentat.. dente laterali postico elongato duplicato, margine 
antico edentulo, 
NEOCaRDTA ANGULATA, Sowerby, n. sp, pl. 3, fig. 66.— 
Testa parva, sub-mytiliformis, postice angulata, antice rotun- 
data, albida, fusco-tincta, concentrice dense regulariter et 
profunde sulcata, radiatim costata, costis cire. {2 angustis, 
parum elevatis, leviter nodulosis. Umbones prominentes, 
acuti. Pagina interna obscure radiatim sulcata, plus minusve 
fusco-tincta. 
Diam. antero-post 43, umbono-marg. 4 millim. 
Hab. Port Elizabeth. 
A remarkable little shell of distinet form and peculiarly 
cancellated sculpture. The cardinal teeth are scarcely 
visible, and there is only one elongated lateral tooth, which 
is on the posterior side of the hinge, the anterior being plain. 
MytiLus cRENATUS, Lamarck, Encyclo. Method. pl. 217, 
fig. 3; Sowerby’s Genera of Shells, fig. 5. = M. capensis 
(Dunker).-—Port Elizabeth. 
