AET. 10 



EABTHWOEM FAUNA OF BURMA — GATES 



23 



typhlosole is simple: it begins in the region of xxvii and ends gradu- 

 ally 10 to 15 segments from the posterior end. 



The commissure belonging to the left side of segment ix is atrophied 

 in all specimens. The commissures of x and xi as well as the right 

 commissure of ix pass into the ventral vessel. On each side of the 

 dorsal vessel in the posterior part of the segment, from about the 

 middle of the worm posteriorly, is a small glandlike body. Smaller 

 and more transparent glands are similarly attached to the dorsal 

 vessel anteriorly. 



The vasa deferentia of a side come into contact and join in the 

 posterior part of segment xii. 



The club-shaped bodies (ovisacs?) from the posterior surface of 

 12/13 were examined microscopically but no ova were found. 



The spermathecal duct is short and sharply delimited from the 

 ampulla which is about two to two and one-half times as long as- 



FiGUEE 11— PHERETIMA ORNATA. O, 6. SPERMATHECAE X ABOUT 8. c. 



Gland from the prostatic region X about 20. d. Gland from the 



SPERMATHECAL REGION X ABOUT 27 



the duct. The ampulla is usually more or less heart-shaped. The 

 diverticulum consists of a duct more than twice as long as the sper- 

 mathecal duct and an ental enlargement which is usually round 

 (fig. 11a) but which may be occasionally much elongated (fig. 116). 

 Intermediate conditions are found. 



The glandular masses located near the spermathecae and the 

 prostates are very similar in appearance when examined in glycerine. 

 Those from the prostatic region (fig. lie) are one and one-half to two 

 times the size of those from the spermathecal region (fig. lid). The 

 ental end of the gland is roughly ovoid and the stalk consists of 

 transparent tissue in which lie 6-10 ducts. 



Only one species of Pheretima with spermathecal pores in 7/8 and 

 8/9 has been recorded from India up to the present time and this form 

 (P. andamanensis Michaelsen 1907) is quite evidently diff"erent from 

 the worm just described. The literature on the genus Pheretima is 



