igoS.] W. M1CHAE1.SEN : Oligochceta of the Indian Empire and Ceylon. 141 



Hab. — Burma, South Hsenwi State, lyashio in the North Shan Hills; 

 J. COGGIN BROWN leg. 



Remarks. — There is some doubt about the numbering of the segments 

 in this species. Apparently, if we regard all segment-like annulations as true 

 seg-uents, all the organs are placed one segment further back than in the other 

 species of this genus ; but as the setge of the most anterior segments are inconspicuous 

 or obliterated, we may as well regard the two first annuli as parts of one segment. In 

 this case E. brow ni would exactly agree with the other species of Eupolygaster 

 in the arrangement of the different organs ; in the other it would differ from them. 

 If we regard all segment-like annulations as true segments, Eupolygaster browni^ like 

 the other species of Eupolygaster, would prove to be proandric in relation to the genus 

 Desmogaster , the holoandric primaeval genus of the family, but while in the other 

 species of Eupolygaster the hearts and sexual organs, with the exception of the 

 spermathecae, are dislocated forwards for one segment, in E. hrowni these organs 

 would have to be regarded as lying in the original situation (as in Desmogaster). But 

 then we would have to regard the one pair of spermathecae as corresponding to the 

 hinder pair of these organs in Desmogaster, whilst in the other species of Eupolygaster 

 the hinder pair is obliterated, the remaining pair corresponding to the anterior pair 

 of spermathecae in Desmogaster. This view is not an unjustifiable one, as we' 

 know a species of Desmogaster, viz., D. schildi, ROSA, from Sumatra, in which the 

 anterior pair of spermathecae is obliterated, whilst only the posterior pair, opening 

 at the intersegmental furrow 8-g, remains. If we regard Eupolygaster hrowni as 

 differing from the other species of Eupolygaster, it should at the same time be 

 regarded as a special branch of the Moniligastridce, derived from Desmogaster 

 in a vSpecial way. Then it would be justifiable to create a separate genus for it. But 

 as this is uncertain, I regard the first two annuli for the present as parts of one seg- 

 ment — the first segment — and the species hrowni as a true Eupolygaster. 



E. hrowni seems in many points to resemble E. modiglianii (ROSA) from Sumatra. 

 It differs from the latter species in the situation of the gizzards (in E. modiglianii seven 

 in segments 26 — 32, in E. hrowni six in segments 19 — 24 with an additional rudimentary 

 one in the eighteenth segment), in the situation of the male pores (in E. modiglianii 

 between the lines of setae h and c, nearer to the former, in E. hrowni close to the lines 

 of setae c), in the number of thickened septa (in E. modiglianii the four septa 5-6 — 

 8-9, in E. hrowni the five septa 4-5 — 8-9), and in the shape of the testicular vesicles 

 (stalked and depending from the septum in E. modiglianii , unstalked and broadly 

 united to the septum in E. hrowni). 



GEN. DRAWIDA. 



DrAWIDA SUI.CATA, M1CHI.SN. 



(Plate xiii, fig. 2.) 

 D. s., MICHAElySEN, in Mt. .Mus. Hamburg, xxiv, p. 144, f. i. 

 Present two mature specimens. 



