64 



TESTACEOUS MOLLUSCA. 



CARNATA. Poll. 1. t. 15. /". 1. Oval-oblong, sub-inequilateral, 

 pointed at the rather shorter anterior extremity, flat, pinkish flesh 

 colour, with two paler anterior rays, finely striated concentrically : 

 hinge with two cardinal and one lateral tooth in one valve ; one 

 cardinal in the other. 1 ..2. — 3Iediterra?iea7} . 



T. PuLCHELLA. Zcim. 23.~Born. t. 2. /. 10.— Poll. 1. t. 15. 

 y. 8. — IV. S. t. \. f. 4. Small, ovate-oblong, depressed, shining, nar- 

 row, pale with numerous rosy rays and fine transverse striae : anterior 

 extremity beaked and rather shorter : hinge with at least one lateral 

 tooth. — Mediterranean, Gulf of Tareiitum. 



T. Fabula.* Gmel.3239.—D. p. 92.— Lam. 2A.—Don. t. 

 97.~Turt. B.p. 101.— TF. t. 3./. 23.~Wood. G. C.t. Ab.f. 4. 

 Ovate, posteriorly rounded, anteriorly contracted ; thin, glossy, 

 white, one of the valves obliquely striated the other smooth : hinge 

 with a single tooth and minute adjacent denticle in one valve, in the 

 other two with a rounded lateral one. ^..f. — iV. JiJurope.'^ 



T. Tenuis.* Lam. 25.— Dor. Cat. t. 5. f. Z.—Turt.B.p. 

 \Q7.—Wood. G. C. t. 44. f. 3, 4,—LUt. t. 405. f. 251.— Ch. f. 

 U7.—Don. t, 19./. 2.- W. t. 3./. 22.— T. Balaustina. B. 'p. 

 93. Ovate-triangular, rather truncated and angular at the anterior 

 extremity, reddish with generally deeper bands, thin, rather flat, 

 nearly smooth and polished. — England, ^-c. 



T.ExiLis. Lam. 2Q.—E. 3. p. 10\3.— Del. t. 6.f. 6. Ovate- 

 triangular, very thin flattened and pellucid, pale crimson, with very 

 fine transverse striae, and obtusely angular at the short and oblique 

 anterior extremity : no lateral teeth. ^. 



T. DoNAciNA.* Lin. 1118.— J), p. 89.— Lam. 27.— Turt. B. 

 p. \02.t. 8.f.4.—W. t. 4.f. 3\.—Mo7it. t. 27./. 3— T.Vakie- 

 GATA. Poli. 1. t. \5.f. lb. Oval with the beaks close to the 

 anterior extremity, which being abruptly sloped puts on the ap- 

 pearance of a Donax, finely striated concentrically, semi-transparent, 

 yellowish within and without with red often interrupted rays : hinge 

 in one valve with a bifid cardinal tooth, an additional simple one 

 and lateral teeth on each side in the other. — Mediterranean, ^r. 



T. NiTiDA.— Po/i \. t. 15./. 2. 34.— Lam. 28.— Phil. p. 27. 

 — Gual. f. 77- Oblong, very compressed, equilateral, anteriorly 

 narrowed, polished, pale flesh-colour with tawny zones, ligamental 

 edge straight, with delicate and regular transverse strise, anteriorly 

 in one valve, with coarse and distant ones : inside tawny orange, no 

 lateral teeth, a single bifid cardinal in one valve, a bifid and simple 

 smaller one in the other. If. — Mediterranean. — Variety, whitish 

 or sulphur-coloured. 



3 We have given a copy of the Fragillissima of Ch. f. 101. the 

 Vitrea of Gmelin (D. p. 92.) which bears much resemblance in shape 

 to this species, but has no lateral tooth. 



