WORMS, TESTACEA. 42. Venus. 159 



232. V. defussat-a. Somewhat oval, strong, reticulate, 

 somewhat angular and produced at the anterior side, 

 brown, within while with purple spots near the 

 hinge. 



Donovan t. 67. Br. Zaol. t. 57-/. 53, V. litterata. 



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

 characters or lines, strongly reticulate at the ends : btak oblique, 

 beneath which is a lanceolate depression : hinge, with 3 teeth, 2 of 

 them cloven. 



273. V. PuUastra. Suboval, finely and regularly decus- 

 sate, somewhat truncate at the anterior end, brows 

 with zigzag lines or rays. 



linn. T ran/act, vi. f. j 7 ,/. 13. M . 



Shell very much refembling the last, but fmaller, and tfi tri 

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

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

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



^If4. V. per/orans. Sub rhombic, transversely striate, 

 Winkled on th anterior skte, light-brown : 2 of the 

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

 cloven. 



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



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

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

 tinged with purple at the truncate end: beak f mall,, a little 

 oblique. 



275. V. vu-ginea. Suboval, strong, transversely striate 

 with a few deeper furrows, rounded at both ends: 

 middle tooth cloven. 



Er. Zool. n. 55. t. 55. jS<r 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-colour: 

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



216. 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 -di\ inch long, .4 lines broader, white with brown or blue- 

 ifh-black 2igzag lines, or mottled with grey, sometimes brown 

 with often a yellow tinge, within yellow ifh-white with a plain 

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

 with a lanceolate deprefsion beneath it. 



277. V. sutcata. Suborbicular, subangular, strong, flat- 

 tis-h, with concentric ridges becoming obsolete at the 



sides, white or Covered with a brovvu skin. 



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



Shell near an inch long and broad, with the grooves broader than 

 the ridges, white "within 'with a crenate 'margin : beak large promi- 

 nent, a little curved, beneath which is a lanceolate deprefsion 

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

 each side receiving the a teeth of the other valve. 



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

 with regular parallel grooves, and plain margin. 



Linn. Trans, \i\i.p. 81. tab. i.fg. 3. 



6 W/haif an inch long, and "abode 3 quarters broad, of a more 



