91 

 * * Margin quite entire. 



V. SUBSTRIATA. Mont. Sup. p. 48. t. 29. /. 6. 

 Pen. 4. p. 211. Turt. C. D. p. 245. Turt. B. p. 

 152. F. p. 448. Oval, thin, semitransparent, white, 

 with transverse wrinkles and obscure waved longitudinal 

 striae; beaks nearer to one end, small, turning a little to 

 one side; anterior tooth long and oblique. i...0,60. 

 Frith of Forth. 



V. .ENEA. Turt. C. D. p. 248. /. 20. Turt. B. t. 

 I0.f.7.p. 152. F. p. 449. Oval, tapering and 

 elongated anteriorly, posteriorly rounded ; white, under 

 a shining bronzed skin, convex, with regular close-set 

 transverse striae and minute longitudinal lines; beaks 

 much pointed curved and posterior, lunule elongated ; 

 teeth strong, two cloven in one valve, and one in the 

 other. l...li. Dublin Bay. 



V. SARNIENSIS. Turt. B. p. 153. t. 10. /. 6. 

 V ENERUFIS S. P.p. 452, List. t. 385 ./. 232. Oval, 

 anteriorly truncated and tumid, thick, convex,yellowish 

 white, mostly marked with numerous red or purplish 

 ziczac lines often disposed in interrupted rays (rarely 

 uniform chocolate or fawn color,) ; with numerous 

 rounded transverse striae not becoming broader ante- 

 riorly ; beaks prominent, recurved ; lunule purple and 



