VENUS. 401 



Ortygla ', Venus ovata is the type of Timoclea in Leach's 

 arrang-ement ; and the genera Dosina of Gray, Chione of 

 Megerle, and Antigone of Schumacher, are in the same 

 category. Such subdivisions, founded in all cases on mere 

 conchological characters, do not seem to us describable. 



V. VERRUCOSA, Linnaeus. 



With concentric ribs, which are broken into wart-like tuber- 

 cles at the sides. 



Plate XXIV. fig. 3. 



Lister, Hist. Conch, pi. 284, f. 122. 

 Venus verrucosa, Linn. Syst. Nat. ed. 12, p. 1130. — Pulteney, Hutchins, Dor- 

 set, p. 32.— DoNov. Brit. Shells, vol. ii. pi. 44.— Mont. 

 Test. Brit. p. 112. — Linn. Trans, vol. viii. p. 7B.— Dorset 

 Catalog, p. 34, pi. 8, f. 1.— Turt. Conch. Diction, p. 231.— 

 TuRT. Dithyra Brit. p. 140. — Flem. Brit. Anim. p. 44G. — 

 Brit. Marine Conch, p. 85.— Brown, 111. Conch. G. B. p. 90. 

 pi. 36, f. 16.* — Born, Mus. Cses. Vind. pi. 4, f. 7.— 

 Chemn. Conch. Cab. vol. vi. p. 303, pi. 29, f. 299, 300.— 

 PoLi, Test. Sicil. pi. 21, f. 18, 19.— Lam. Anim. s. Vert. (ed. 

 Desh.) vol. vi. p. 339 (not varieties). — Dillw. Recent Shells, 

 vol. i. p. 163.— Index Testae, pi. 7, f. 12.— Crouch, Introd. 

 Conch, pi. 7, f. 6.— SowERB. Conch. Man. f. 119, a.— Desh. 

 Elem. Conch, pi. 21, f. 1, 2.— Philip. Moll. Sicil. vol. i. p. 

 43 ; and vol. ii. p. 34.— Hanl. Recent Shells, p. 110. 

 Venus Ei-ycina, Penn. Brit. Zool. ed. 4, vol. iv. p. 94, pi. 54, f. 48. 

 Peduncuhcs strigosus. Da Costa, Brit. Conch, p. 185, pi. 12, f. 1. 

 Venus cancellata, (Young), Donovan, Brit. Shells, vol. iv. pi. 115? (fide 

 Mont.) — Mont. Test. Brit. p. 574. — Turt. Dithyra Brit, 

 p. 144, pi. 10, f. 3.— Flem. Brit. Anim. p. 447.— Brit. 

 Marine Conch, p. 87. 

 Venus Lemanii (Young), Payraudeau, Moll. Corse, p. 53, pi. 1, f. 29, 30, 31 

 (fide Desh. and Recluz, from types). 



The peculiar wart-like tubercles give so remarkable an 

 aspect to this solid and coarse-looking bivalve, as to render 

 its separation from its congeners a comparatively easy task. 

 It is of a somewhat heart-shaped obovate form, very 

 strong, generally heavy, decidedly inequilateral, and of a 



VOL. I. 3 F 



