MALACOZOA. TROPIOPODA. LaMELUBRANCHIATA. 267 



nipted bands. Length an inch and two-twelfths, height nine 

 or ten-twelfths, thickness four or five-twelfths. 



This species differs from Venus Gallina chiefly in having 

 the valves thinner, the anterioi' slope shorter, the posterior 

 longer, the form more ovate, and the lamiriro thinner and 

 widely separated. It is perhaps only a variety of that species. 



The young are of a more roundish form, hut otherwise simi- 

 lar. They have been represented in Brown's Illustrations, PL 

 25. f. 13. by a characteristic figure^ to which the name of 

 Ortygia costata is appended. 



This species is not uncommon along the coast, often cast on 

 the beach, and frequently brought up by the lines from deep 

 water off Aberdeen ; also found at Cruden, Peterhead, Gamrie, 

 Banff, and Portsoy. 



Venus lammosa. Turt Brit. Biv. 148. PI. 10. f. 4.—" Ortygia 

 Prideauxiana. Leach." — Ortygia sulcata. Brown, lUustr. PL 34. 

 £. 12. 



5. F^nus fdscidta. Banded Fetius. 



Shell roundish-trigonal, compressed, thick, with broad, 

 flattened, smootli, concentric ridges ; the frontal line rather 

 concave, with the impression narrow-oblong, the dorsal line 

 & little convex ; the teeth thin, the margin crenulate ; the 

 colour white or reddish, with reddish-brown, crimson or pink 

 radiating bands, and smaller markmgs. Length and height 

 about ten-twelfths of an inch. 



Very rare, and only single valves met with, from off Aber- 

 deen. Found also at Fraserburgh, by Mr. Alexander M\u'- 

 ray . Li January, 1 843, a perfect specimen fomid at the Cove 

 by Mr. Fergusson. 



Venus fksciata. Donov. Brit Sh. v. PL 170. — Pectunculus fas- 

 ciatus. Da Costa. 188. PL 13. f. 3. — Venus fasciata. Flem. Brit 

 Anim. 447.— Venus fasciata. Turt. Brit Biv. 146. PL 8. f. 9.— 

 Venus fasciata. Brovv'n, Illustr. PL 35. f. 10. — Veuus paphia- 

 Mont Test Brit 110. 



6. rcniis ovdta. R'Med Venus. 



Shell ovato- triangular, moderately convex, rather thin, di- 

 vergingly ribbed ; the ribs crenulated, being crossed by nu- 

 merous concentric striae ; the ligament scarcely apparent 

 externally ; the dorsal slope much longer, shghtly convex, the 

 anterior convex ; the depression oblong, not distinct ; the 

 margin finely crenulated ; the colour brownish-Avhite, of the 

 jjoside white. Length nine-twelfths, height seven-twelfths. 



