TRIBE NYMPHACEA. 11 



lunule ; inside glossy, hinge with three teeth in one valve (the middle 

 one cloven) and two in the other. Diam. \\. 



L. CoLOMBELLA. Lam. 15. — Sow. G. f. G. — L. Adansoni. 

 D'O/b. Mol. Cari.t. 1 .f. 26, 1 . Sub orbicular, convex, gibbous, 

 transversely grooved and one of the slopes hollowed ; beaks mode- 

 rately prominent and obliquely curved. — Senegal. 



L. SiNUATA.* Lavi. 16. — Tellina Flexuosa. 3font. p. 72. 

 —D. p. 99.— Don. t. 42./. 2.-~W. t. 4. f. 78.— Cryptodon F. 

 Turt. Biv. t. l.f. 9, 10.— Lucina F. Gould. Mas.f. .52. Sub- 

 orbicular, convex, thin, pellucid and white ; marked with minute irre- 

 gular concentric wrinkles, and a longitudinal furrow extending from 

 the apex parallel to the cartilage slope, and forming a deep curve in 

 the margin at its termination : hinge with a single obscure penetra- 

 ting cardinal tooth. Diam. |. — Atlantic. 



L. Pecten. Lam. 11. —Del. t. 6. /. 8. — An. L. Bella. 

 Conrad. I. A. N. S. Phil. 1. t. 19. f. \l'.? Sub-orbicular, rather 

 broader than long, but slightly convex, whitish with small rounded 

 transversely striated radiating ribs : inner margin crenulated. a. — 

 Senefjal. — Not unlike a cockle. 



L. LuTEA. Lam. 18. — Dd. t. 6. f. 9. Rounded oval, sub- 

 equilateral, rather broader than long, very small, smooth, pellucid, 

 canary yellow, no lateral teeth, -j. — Mauritius. 



L. Digitalis. Lam. 19.— Del. t. 0. f. 10.— Tellina Digi- 

 TARIA 1 Lin. Gmel. No. 15. Small rounded triangular, whitish 

 tinged with rose colour at the umbones, which are tumid and marked 

 with very elegant fine and oblique striae. 3Iediterranean. 



L. Globularis. Lam. 20. Sub-globose, thin, whitish, vesi- 

 cular ; no lateral teeth. ^. — New Holland. 



L. ViRGiNEA. Desk. — E. vol. 3. p. 319. Orbicular, depressed, 

 white, with transverse ridgelike striae and very delicate longitudinal 

 ones ; beaks very small and acute ; anterior depression heart-shaped, 

 and rather exserted in the middle, posterior simple and tinged with 

 rose-color. — Aniboyna. — Notuiilike liadula, hut larger and differ- 

 ing by the hinge, the lunule, and the anterior slope. 



L. AuRANTiA. Lam. 34. — Ch. f. 396. Orbicular, convex, 

 turgid and thick, whitish at the beaks, becoming orange as it recedes 

 from them, finely striated transversely ; lunule depressed and ovate, 

 posterior depression large and ovate : margins entire. — Indian 

 Ocean. 



L. Punctata. Soro. G. — Reeve, t. 59. f. 1. — Venus P. I^in. 

 1 134.— Z>. p. 194.— TF. t. 8./. 81.— Cytherea P. Lam. 54.— 

 Ch.f. 391, 8. — E. t. 277. f- 3. Sub-orbicular, rather depressed, 

 whitish often stained with pink on the slopes, with longitudinal 

 distant grooves, and the intermediate spaces flattened : within with 

 the margin rosy, and the central portion thickened, dotted, and 

 usually "yellowish : posterior depression minute and excavated. 

 Diam. 2. — Indian Ocean. 



