ART. 10 EARTHWORM FAUNA OF BURMA GATES 39 



All the fragments have the paired papillae on xvi and xvii. One 

 worm has a larger papilla on the right side of xxi, pushing 20/21 and 

 21/22 anteriorly and posteriorly, and extending from internal to a 

 nearly to c. Another worm has a similar area in the same position 

 on each side of xxi. 



The supra-intestinal glands are 10 pairs in 5 successive segments, 

 85-95 mm. from the anterior end. 



The penial setae are 1.8-2.4 mm. long, 50-55 micra thick at the 

 widest region near the base. The shaft is straight except for two 

 slight bends near the free end. The ornamentation consists of 

 irregularly placed, finely jagged ridges which are shorter and sparsely 

 distributed near the tip, longer and closer together toward the base. 

 The worm just described is very similar in general external appear- 

 ance as well as internal structure to E. peguanus. Some two score 

 specimens of the latter species, 

 from the type-locality, Ran- 

 goon, have been available for 

 comparison with the Kyundo 

 Figure 22.-ELTYPUO- form. The differences between 

 Eus siMiLis SPERM- ^u p ^„,f. f ^^ms ms V bp summflr- Figure23.-e utyphoe us 

 ATHECAL DIVERTICULA ^^c iw o lorms may ne summar- pequ^nus. spermathecal 



X ABOUT 14 ized as follows ; diverticula X about 14 



E. peguanus E. similis 



Male pores In be close to b. On the In line with 6. 



posterior third of longitu- On the center 

 din ally placed oval of round 

 papillae. papillae. 



Spermathecal pores In be, to c In 6. 



Clitellar genital markings Paired, on xvii only.* Paired, on xvi 



and xvii. 



Extra clitellar markings Paired, on xix Paired, on xxi. 



Male funnels In x and xi (not hitlierto re- In xi only. 



corded from x in this 

 species). 



Prostatic duct 7-8 mm. long 2-3 mm. long. 



Penial setae: 



Length 1.3-1.8 mm 1.8-2.4 mm. 



Basal thickness 35-50 micra 50-55 micra. 



Curvature One Two. 



Spermathecal diverticulum Usually bent - Usually not bent, 



smaller. 



So far as the majority of the characteristics listed above are 

 concerned, the two forms are sharply delimited and do not grade 

 into each other. The curvature of the penial setae and the form of 

 the spermathecal diverticulum do, however, vary somewhat in both 

 forms. 



The majority of the normal penial setae of E. peguanus are 

 curved as illustrated, although several setae were found with a shaft 



