US WORMS. TESTACEA. 37. Soles. 



tooth in one valve, and a lateral lamina; in the other 

 valve two, with a lateral inclined lamina. 



Br. Zool. t. 45. y. 20. Donovan, t. 46. Da Cost. t. 17. f. 5. 



Shell an inch long, 8 broad, truncate at one end, a little rounded 

 at the other, olive-brown, grey with purplish bands when worn* 

 divided diagonally by a conoid cinereous mark, one part striate 

 longitudinally the other tranfverfely '.hinge near one end. 



189. S. Novacula. Linear, straight : hinge with a strong 

 obtuse curved tooth in each valve, without lateral 

 laminae. 



Montague Brit. She/Is, ^47. 



Shell refembling S. Siliqua, except in the teeth. 



190. S. Ensii. Linear, a little bowed: hinge with a 

 single tooth and lateral lamina in one valve, locking 

 into two teeth and a double lamina in the other. 



Br. Zool. t. 45. f. 22. Donovan t. 50. Lister t. 41 i.f. 257. 



Shell hardly am inch long, about 5 broad, coloured divided and 

 striate like S. Siliqua, truncate and a little rounded at both ends : 

 hinge at one end. 



191. S. Vagina. Linear, straight, a little reflected at the 

 end next the hinge : in each valve a single compres-* 

 sed tooth without lamina?. 



Br. Zool. t. 46. f. 21. Donovan, t. no. Barbut t. ?../. 4. 



Shell 3 quarters of an inch long, about 4 broad, orange-yellow, 

 striate longitudinally, rather truncate at both ends : hinge clofe to 

 one end. 



192. S. pellutidm. Oblong, slightly bowed, pellucid : hinge 

 with a single tooth in one valve locking into 2 in the 

 other, with a lateral lamina in each. 



Brit. Zool. t. 46./. 23. Donovan, t. 153. 



Skill a quarter of an inch long, about an inch broad, thin, brittle, 

 covered with a greenish skin, rounded at each end. 



193. S. Legumen. Straight, linear-oblong : hinge 

 the middle, with a single tooth in one valve, and 



the other, and a hook-like process in each, pointing 

 towards the cartilage. 



Br. Zool. t. 46. f. 24. Donovan t. 53. 



Shell nearly an inch long and 3 broad, thin, white or covere 1 

 with a yellowish skin, rounded at both ends, radiate from the 

 hinge to the margin. 



194. S. antiquatus. Oblong, a little contracted opposite 

 the hinge: hinge central, a single subulate tooth in one 

 valve, locking between two in the other. 



Donov. t. 114. Br. Zool. t. 46.7. 9.5. S. CultelliiF. 



Shell near an inch long, 2 broad, thin, white or covered with a 

 yellowish-brown skin, femitranfparent, concentrically striate, 

 rounded at the ends : teeth projecting beyond the margin, in one 

 valve a single fubulate one, in the other two, one of which is iubu- 

 late, the other broad. 



195. S. minutus. Suboral, transversely wrinkled : valves 

 with each 2 rows of concave spines running from (lie 

 beak. 



Montague. Brit. Shells, t. \.f. 4. Chemn. conch. 6. t. 6./. 51. 52. 



Shell* quarter of an inch long, half an inch bi^ad, whitish, trun- 

 cate clofe to the hinge, with generally dissimilar valves. 



190, S. v&*ptrtinu$. Oval-oblong with pak* purple rays -. 



