WORMS. TESTACEA. 42. Venus. 159 



272. : V. dtci&sata. Somewhat oval, strong, reticulate, 

 somewhat angular and produced at the anterior side, 

 brown, within white with purple spots near the 

 hinge. 



Donovan t. 67. Br. Zoo/, t. 57./. 53. V. litterata. 



Shell 2 inches long, 3, broad, often, marked with dark zigzag 

 characters or lines, strongly reticulate at the ends : beak oblique, - 

 beneath which is a lanceolate depression : hinge with 3 teeth, a of 

 them cloven. 



213. V.'PitUastra. Suboval,, finely ami regularly decus- 

 sate, somewhat truncate at the anterior end, brown 

 with zigzag lines or rays. 



linn. Tranfact. vi. t. 17,/. 13. 14. 



Shell very much. refembling the last, but fmaller, and the striae 

 are finer and more regular, the cicatrix running down more "than 

 half the breadth of the shell, arid is constantly marked with grey 

 brown or purple zigzag lines : teeth 3, approximate, pectinate. 



21:4. V . ijerforans. Subihombie, transversely striate, 

 wrinkled on the anterior side, light-brown : 2 of the. 

 teeth long, slender, recurved, the middle-one a little 

 cloven. 



Montague Brit. Shells p 127. tab 3./. 6. 



Shell about 4 lines long, and 6 broad, with rarely fine longitu- 

 dinal striae; white within with a plain margin, and generally 

 tinged with purple, at the truncate end ; beak fmall, a little 

 oblique. 



275. V. virginea. SubovaJ, strong, transversely striate 

 with a few deeper furrows, rounded at both ends : 

 middle topth cloven. 



Br. Zool. n. 55. t. 55. Jig without number* 



Shell hardly an inch broad, more than an inch long, rufous-brown 

 with ferruginous streaks or fpots, or with a few rays or zigzag 

 lines, rarely blush-colour with a few longitudinal white streaks; 

 within white with a plain margin, often tinged with blush-coiour: 

 beak nearer one end, with a lanceolate depression near it. 



276. V.'aurea. Somewhat heart-shaped, strong, with 

 transverse striae crossed by faint, longitudinal-ones, 

 rounded at both ends : middle tooth cloven. 



Br. Zool. t. 57,/. 34. Lister t. 204./. 249. 



■ Shell an inch long, 4 lines broader, white with brown or blue- 

 lfb-black zigzag lines, or mottled with grey,, sometimes brown 

 with often a yellow tmge, within yellcwifh-white with a plain 

 margin L front-margin much rounded : beak near one end,curved 

 ^with a lanceolate deprefsion beneath it. 



277. V. sulcata. Suborbicular, subangular, strong* flat- 

 tisb, with concentric ridges becoming obsolete at the 

 sides, white or covered with a brown skin. 



Montague Brit. Shells p. 131. n. 20. 



Shellnezr an inch long and broad, with the grooves broader than 

 the ndges, white within with a crenate margin : beak lar^e pVomi 

 nent, a little curved, beneath which is a lanceolate depression- 

 teeth large, the middle one much larger, with a deep cavity on 

 each side receiving the 2 teeth of the other valve. 



278. V. scotica. Somewhat hearted, a little compressed 

 with regular parallel grooves, and plain manrin. 



Linn. Trans, viii.jp. 81. tab. 2. fig. 3. 



Shell half an inch long, and about 3 quarters broad, of a rnor- 



o 2 



