EXPLANATION OF PLATE XXIV. 



Austenia rotungensis, n. sp. 



Fig. I. — Arrangement of the generative organs, X 2. Seen 

 from below, the sole of the foot turned back 

 showing the internal wall. 



,, 2. — The same as seen from the right side, exposing more 

 of the internal organs, X 2. 



,, 3. — The generative organs separated out, X 4*5 . 



„ 4.— Jaw, X 8. 



Figs. 5, 5a, 56, 5c.— Teeth of the radula at different parts of 

 the row, X 196. 



Sarama kenipi, n. sp. 



Fig. 6. — The generative organs separated out, X 4"5. 

 ,, 7— Jaw, X 24. 



