78 



anterior end, which is shorter, smooth, and very ob- 

 liquely truncated; yellowish olive, with two or three 

 pale rays and darker or lighter bands ; inside violet, a 

 single lateral tooth. f...lj. Very common. 



D. DENTICULATA. Lin. 1127. D. p. 151. Lam. 

 50. Ch.f. 256.^. M. t. 262. /. l.F.p. 433. 

 Pew, 4. p. 199. t. 58. /. 2.Mont. p. 104. Lin. T. 

 8. p. 76 Turt. B. p. 124. Dor. Cat. p. 34. t. 5. 

 /. 12. Turt. C. D.p. 41. /. 19. D. CRENUIATA. 

 Don.t. 24. Ovate wedge-shaped, very obtuse anteriorly, 

 with numerous fine punctured radiating striae, white 

 with purple rays ; anterior slope wrinkled transversely ; 

 inside purple, margin denticulated. 0,58... t. Not 

 very common. 



* * Margin plain. 



D> CoMPLANATA.Jfow^.^. 106. t. 5./. 4. Lin. T. 

 S.p. 75. Pen. 4. p. 198. Dor. Cat. p. 34. D. p. 

 \5Q.-Turt. C. D. p. 42. Turt. B. p. 125. t. 7. /. 

 13,4. F.p. 435. TELLINA POLITA. Poll 2. #.21. 

 /. 14,5. CAPSA C. Sow. G.f. 8. Oblong, anteriorly 

 obliquely but obtusely truncated, posteriorly rounded 

 but attenuated, smooth, whitish, under a greenish epider- 

 mis and marked posteriorly with a single broad whitish 



