EXPLANATION OF PLATE XXXVII. 



ANTONINA SOCIALIS. (Page 207.) 



Fig. 1. Anal orifice with six long hairs lying within 

 the "trough-shaped cavity at the posterior ex- 

 tremity of the body." X 600. 



ACLERDA JAPONIC A. (Page 11.) 



Fig. 2. Anal extremity of adult female, showing 

 anal cleft with hairs of anal ring slightly pro- 

 jecting (dorsal), x 250. 



Fig. 3. Anal ring with surrounding parts (ventral). 

 X 600. 



