t6 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 93 



J 



P. aspergilhiin. Chen's specimens appear to be more or less ab- 

 normal — " prostates not well developed .... or totally absent or 

 very rudimentary ". 



Fig. 10. — Phcrcthna robusfa. Portion of a spermatheca, cleared in lactophenol. 



X ca. 54. 



All Szechuan specimens that can be referred to P. corrugata Chen. 

 193 1, are abnormal. The two paratypes that have been available for 

 examination are also abnormal. P. corrugata is therefore regarded as 

 very dubious, possibly synonymous with P. rohusta. 



Fig. II. — Pheretima schuiardac. Duct and diverticulum of a spermatheca. 



X ca. 70. 



PHERETIMA TSCHILIENSIS MICHAELSEN, 1928 



In the synonymy of this form there must now be placed the fol- 

 lowing: P. asiatica Michaelsen, 1902 (in part), P. tibcfaiia Michael- 

 sen, 193 1, and P. kiaiigsuensis Chen, 1930 and 193 1. 



