PLATE 24. 
Fig. 1 a - k. Ortiiis varica. 
1 a - i. Figures showing the gradation of size, form, etc. 
1 k. Enlargement of the radiating striae. 
Fig. 2 a - y. Cyrtia dalmani. 
2 a - y. Illustrations of the ventral, dorsal, profile, and cardinal views of this species, re¬ 
presenting the principal varieties of form and size. 
Fig. 3 a - t. Trematospira multistriata. 
3 a-t. Illustrations showing gradations of size, variety of form. etc. 
3 y. Enlargement of the strife. 
