. PLATE XXX. 



Zaphrentis compressa, Rominger. 

 Figs. 1, 2, 3. Lateral, posterior and calicular views of a large and perfect 

 specimen. 



Zaphrentis ungula, Rominger. 

 Figs. 4, 5. 6. Anterior, lateral and calicular views of a specimen somewhat 



larger than usual. 

 Figs. 7, 8. Anterior and posterior views of a specimen of the ordinary size. 



Zaphrentis herzeri. 

 Page 439. 

 Figs. 9, 10. Lateral and posterior views of a specimen of this species. 



