408 VENERlDiE. 



son) ; Youglial and Bantry Bay (Humphreys) ; Oban, 

 Locli Carron, Skye (Jeffreys) ; Orkney in twelve fathoms, 

 and Foula eighty fathoms, Copenhaw Head forty fathoms. 

 Cape Wrath fifty to seventy fathoms (M'Audrew) ; the 

 Mull of Galloway from fifty to one hundred and forty-five 

 fathoms (Beechey) ; thirty-five fathoms off the Staples and 

 east coast of Scotland (Thomas). It occurs in the Scan- 

 dinavian seas and more rarely in the Lusitanian, where 

 it was more common during the newer pliocene epoch. 



The V. casinula of Deshayes (Exp. Moree, p. 101, pi. 

 18, f. 18, 19 ; V. casina, Philippi, Moll. Sicil. vol. ii. p. 

 33) scarcely differs from our variety reflexa ; its shape, 

 however, is more elongated, its front dorsal slope is lon- 

 ger in proportion, and its lamella? in general are more 

 closely disposed. 



V. STRIATULA, DoUOVaU. 



Triangular-heart-shaped ; if coloured, painted with delicate 

 zigzag lines : sulcated or costellated ( if lamellar, the shape elon- 

 gated) : hinder dorsal area flexuously lineated. 



Plate XXIII. fig. 4, Plate XXIV. fig. 4, and Plate XXVI. figs. 9, 10, 11. 



List. Hist. Conch, pi. 282, f. 120. 

 Peciunculus striatulus. Da Costa, Brit. Conch, p. 191, pi. 12, f. 2. 

 Venus casi?iu, (not of Linn.) Pulteney, Ilutchins, Hist. Dorset, p. 33. 

 „ slrialula, Donovan, British Shells, vol. ii. pi. 68. — Mont. Test. Biit. p. 



113. — LoVEN, Ind. Moll. Skandin. p. 39. 

 Ve7ius gallina, Maton and Rackett, Linn. Trans, vol, viii. p. 82. — Dorset 



Catalog, p. 35, pi. 8, f. 2.— Turt. Conch. Diction, p. 234, f. 



65 (execrably) ; Dithyra Brit. p. 149, pi. .0, f. 2. — Flem. 



Brit. Anim. p. 448. — Macgilliv. Moll. Aberd. p. 2G5. — 



Brit. Marine Conch, p. 89.— Brown, 111. Conch. G. B. p. 89, 



pi. 36, f. 11. — Alder, Northumb. and Durham Mollus. p. 85. 



— DiLLW. Recent Shells, p. 1G8. — Lam. Anim. s. Vert. (ed. 



Desh.) vol. vi. p. 347 (in part). — Index Testaceolog. pi. 7, f. 



23. — Hanl. Recent Shells, p. 115. 



