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COKBICULA. 211<br />
Shell subtrigonal or cordiform, subequilateral; with iimbones<br />
prominent, concentrically grooved; hinge bearing three divergent<br />
cardinal teeth in each valve; lateral teeth elongated, compressed,<br />
lamelliform, finely striate; right valve having two lateral teeth<br />
both anteriorly and posteriorly, the left valve having but one on<br />
each side ; pallial line usually continuous.<br />
Animal having the edge of the mantle ornamented with small<br />
conical tentacles; siphons very short, closely situate ; orifices<br />
papillary ; foot tongue-shaped, rather large, laterally compressed ;<br />
palpes triangular, lai^e ; gills joined behind.<br />
337. Corbicula fluminalis (MUUer).<br />
Tellina fltiminalis, Miill. Verm, ii, p. 205,<br />
Venus fluminalis, Chemn. in Oonch.-Cah. vi, p. 319, pi. 30, fig;. 320 ;<br />
Wood, Did. Test. pi. 8, fig. 113.<br />
Tellina fluminalis, Schroter, Flussconch. p. 195, no. 20; Grael.<br />
S. N. p. .^242, no. 79.<br />
Cyclas fluminalis, Blainv. D. S. N. xii, p. 280.<br />
Cyrena fuscata, var,?, Lamk. An. s. Vert, v, p. 622, no. 4.<br />
Corhicvla fluminalis, Deshayes, Cat. Brit. Mus., Conchif. 1854,<br />
pp. 222-223.<br />
Original description:—Testa crassa, dura valdo gibba, opaca,<br />
antice versus cardinem latior, quam postice, extus yiridis crebro<br />
striatim imbricata; strias aperturas parallelae. Intus cyanea;<br />
cardiuis dentes medii sex cum fossulis, tres nempe in quavis<br />
valvula, utriusque ligamento proximus emarginatus est; laterales<br />
utrinque elongati, sulcique excipientes, crenulati sunt.<br />
Hob. India, etc.<br />
The following dimensions are those of two specimens in the<br />
British Museum ,•—<br />
1. 2.<br />
Long. 39-25 38 mm.<br />
Lat 45 43-25 mm,<br />
Diam 26 23-5 mm.<br />
Var. holstiana, Schltscli, Calcutta, Eec. Ind. Mus. ii, 1908,<br />
p. 108.<br />
Said to be more arched than the typical form.<br />
Hah. Hoti-Mardan, near Peshawar.<br />
338. Corbicula flumiTiea {MUlkr).<br />
Tellina fluminea, Miill. Verm, il. p. 206; Gmel. S. N. p. 3243,<br />
no. 80.<br />
Cyclasfluminea, Blainv. D. S. N. xii, p. 280.<br />
Venus flumittea, Ohemn. in Conch.-Cab. vi, p. 320, pi. SO, figs. 322,<br />
323, an eadem species ? ; Schroter, Einl. iii, p. 169, no. 13;<br />
Wood, Ind. Test. pi. 8, fig. 114.<br />
Teliinajluviatilis, Schroter, Fhissconch. p. 193, pi. 4, figs. 2a & b.<br />
P2
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