15f> WORMS. TESTACEA. 41. 42. 



41. DOXAX. 



250. D. Tnmculus. Oblong, glossy, finely striafe longi- 

 tudinally, with transverse purple bands, within purple 

 with crenate margins. 



. Br. ZooL t. 55. f. 45. Donovan, t. 29. f. i. 



Shell 6 lines long, an inch and a quarter broad, yellowish with 

 brown and purple bands : be-ak fmall, near the abrupt end, 



251. D. denticulata. Somewhat wedge-form, strong, 

 thick, much truncate at one end, longitudinally stri- 

 ate with the interstices punctured, denticulate on the 

 margin. 



Br. ZooL t. 55. y. 46. Doxovan tab. 24. D. crcnulata. 



Shell 7 lines long, an inch broad, brown yellowish or purple, 

 variously banded and rayed, much sloped at the larger end, purple 

 within : beak nearer the larger end : hinge with a lateral tooth 

 each side the middle-ones. 



252. I), complanata. Oblong, smooth, glossy, yellowish 

 with white streaks or spots, and a broad white ray 

 from the beak to the margin. 



Montague t. ./. 4. Lister t. 384. /. 227. 



Sliett 6 lines long, an inch and a quarter broad, yellowish or pur- 

 plish, often covered with a polished skin, rarely with a few ohfo- 

 letc tranfverfe stria:, within purple with the margin fmooth : 

 beak near one end. 



203. D.plebeia. Oblong, suboval, thick, smooth, glossy, 

 yellowish horn-colour with 2 browu rays from the 

 beak : teeth both strong. 



Montague. Brit. Shells, p. 107. t. r } ,f. 2. 



Shell about half an inch long. 3 quarters broad, strong, with a 

 few distant concentric striae, pale and glofsy within, the margin 

 smooth : beak nearer one end : hinge with a lateral tooth. 



254. D. casfanea. Strong, thick, with a few irregular 

 transverse ridges, chesnut with a darker curved ray 

 from the beak : one of the teeth small. 



Montague Brit. Xftetis. afp. p. 573. t. 17. f. 2. 



Shell a quarter of an inch long, 3 eighths broad, chesnut and glofsy 

 within with the margin smooth : beak obtuse, rather leaning to the 

 longer side : hinge with a large and a small tooth in each valve, 

 without lateral-ones, 



255. D. Jrus. Sub-oval, whitish, with transverse waved 

 rncmbnmaceous reflected ridges finely striate longitu- 

 dinally between the interstices. 



Donovan t. 29. /. 2. Da Costa t. ij./. 6. 



Shell about the size of a frnall kidney-bean, fometimes nearly cir- 

 cular or oblong, opake, rugged, within white or Mesh-colour with 

 the margin fmooth : beak fmall, oblique : teeth cloven, one 

 exceptcd. 



42. VENUS. 



256. \.faticiuta. Somewhat heart-shaped, with large 

 broad depressed ridges of equal thickness at both 

 ends : beaks much curved. 



Donovan t. 170. Da Costa tali 13. f. 3. 



tilu-li 10 lines long, an inch broad, variously rayed and banded 

 with brown red or yellow, refemblcs V. Paphia, but is mor- 

 rounded, and the ridges are more flattened and not gfowing obfo- 



