90 



ASTARTE (OPIS) TRIGONALIS. FIG. 16. 



Sow. M.C., t. 444. 

 " Spec. Char. Cordato-triangular, depressed, transversely 

 sulcatod ; beak pointed ; anterior side separated by an angle, 

 smooth."* 



Fig. 17, A. fOpisJ trigonalis. Bach View. 



Proportions: Length, 24 lines ; breadth, 27; depth, 15. 



* Sow, Min, Conch, page 63, vol. v. 



