Plate 21 



Figures 1, 2. Cornuspiramia aniillaruin (Cushmaii). Tortuga.s. 1. Central 

 part from below; 2, dorsal surface. 

 3,4. Cornus-piroides striolata {Ti.'B.'Bvaidy). 3. X 5. after H. B. Brady, 

 a, side view; h, peripheral view. 4. After Heron-Allen and 

 Earland. X 3. 

 5. N odohacularia tibia (Jones and Parker). X SO. Tortugas. 

 6,7. Cornuspirella diffusa (Heron-Allen and Earland). X 13. After 

 Heron- Allen and Earland. 

 8-11. O phthalmidium inconstans H. B. Brady. X 24. After H. B. 

 Brady. 

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