EARTHWORM PHERETIMA HUPEIENSIS — GRANT 



59 



segment 9 a pair of heavy but nonpulsating vessels connect the supra- 

 intestinal blood vessel with the lateral-oesophageal vessels on each 

 side. Two pahs of similar vessels occurring in segments 10 and 11 of 

 Pheretima posthuma are termed "anterior-loops" by Bahl (1921). 



Excretory system: The excretory system is similar to that of 

 P. posthuma described by Bahl (1921, 1950). The system is mero- 

 nephric in that it is composed of several types of nephridia, and that 



SPERMATHECAU 

 PORE 



2 PORE 



C 



I I 



OPS. Qnt.lo. sui.v. ht 



lot oes. V. V. V. 



CQi 



Figure 4. — Pheretima hupeiensis: a, external sexual characters; h, a spermatheca; c, digestive 

 system and hearts. For explanation of abbreviations see page 54. 



