PLATE LIII. 



Fios. 



1-4. Diaphorapodon mobile Archer, (p. 123) Fig. 1. — 

 Side view of active individual, x 400. Figs. 2-3. 

 — Oral and side views of another with an abnormally 

 pointed fundus, x 400. Fig. 4. — Process of divi- 

 sion, from a specimen mounted by Dr. Penard. The 

 spines are not visible in Canada balsam, x 200. 

 5-6. Clypeolina marginata Penard. (p. 126) Side and 

 vertical views, x 500. 

 7. Amphitrema stenostoma Niisslin. (p. 151) An indi- 

 vidual of unusual form and colour. After West. 

 x 300. 



