Plate 32. 



All figures from unretouched photographs of preserved specimens. 

 Gonionemus suvaensis. 



Fig. 1. A little more than one quadrant of the bell margin, with tentacles and otocysts. 

 Only three of the latter are visible. X 20. 



Fig. 2. Dissection of bell margin, showing endodermal roots of tentacles. X 40. 



Fig. 3. Portion of tentacle, showing sucking disc. From a specimen stained in borax- 

 carmine, x 75. 



Fig. 4. Side view of manubrium, x 20. 



Fig. 5. Gonad by transmitted light ; from a specimen cleared in glycerine. X 35. 



Fig. 6. Portion of margin showing bases of two tentacles, and otocyst containing one 

 otolith, x 75. 



Fig. 7. Abnormal individual, 7 mm. in diameter, with only one radial canal and one 

 gonad. 



Olindias singularis. 



Fig. 8. Abnormal individual, with nine gonads and two distinct gastric cavities. X 2. 



