Plate 3. 



All figures from photographs of specimens preserved in formol. 

 Figs. 1-2. Homoeonema alba. X 2. 



In these two figures the form and extent of the gonads, and of the manubrium, 

 is well shown. 

 Fig. 3. Halicreas papillosum ; oral view of immature specimen, especially to show the 

 conformation of the gastrovascular system. Exumbral papillae are as yet 

 but slightly developed. X 3. 

 Fig. 4. Gonionemus suvaensis ; oral view, illustrating especially the extent of the gonads 

 along the radial canals. X 4. 

 5. Gonionemus suvaensis ; side view, x 4. 

 Fig. 6. Liriope tetraphylla; side view. The gonads exhibit the rhomboid form character- 

 istic of the "compacta" stage. From a specimen 22 mm. in diameter. 

 Fig. 7. Liriope tetraphylla, a younger specimen. The gonads are triangular; "rosacea" 

 stage. From a specimen 15 mm. in diameter. 



