PLATE XV. 



Fios. 

 1 and 2. Ancidia xcabra Mull, (p. 128) 1. Test: natural 



size. 2. Mantle : slightly enlarged. 

 3 and 4. A. *calra var. albida A. & H. (p. 131) 3. Test : 



natural size. 4. Mantle : slightly enlarged. 

 5-7. A. scabra var. echinata (p. 132) 5. Test: slightly 



enlarged. 6 and 7. Views of mantle of another 



individual : slightly enlarged. 

 8 and 9. A. affinis A. & H. (p. 136) 8. Test : natural size. 



9.?. 



