1002 



ON A NEW EARTHWORM FROM INDIA. 



[Dec. 18. 



The diverticulum is longer than the sperinatheca; it is plainly com- 

 posed of a duct and of a distal monilit'orm sperm-receptacle. The 

 two parts are about ecpu-sized. The accompanying drawing (fig. 2, 

 p. 1001) shows how different are the spermathecae of A. aleamidri 

 from those of A. trinitatis, which latter are more like those of 

 A. heterochcetus J . The salient points of difference between the 

 three species may be thus tabulated : — 



It is obvious that these three forms come very near to each other 

 A rough general description would very readily confuse their 

 points of unlikeness, which appear to me, who have studied all 

 these species, to be unmistakable. The following is a sufficient 

 definition of the new species: — 



Amyntas alexandri, n. sp. 



Length 145 mm. ; number of segments 133. Setae of most 

 anterior and most posterior segments rather larger. Clitellum 

 xiv.-xvi., without seta?. Male pores separated by 13 seta?. Xo 

 genital papillae. Septum viii./ix. absent. Caeca rather large. Last 

 heart in xiii. Sperm-sacs in xi., xii. Spermiducal glands inxvii.- 

 xx., broader auteriorly, much lobate; duct longish, horseshoe- 

 shaped, without terminal sac. Spermathecae in vi.-ix., with long 

 thick duct longer than pouch ; diverticulum longer than sperma- 

 thecae, with equi-sized duct and sperm-chamber. Spermathecae 

 open laterally. 



Hub. Calcutta 3 . 



1 I have distinguished A. trinitatis and A. heterochcetus by the longer diverti- 

 cula of the former. I think that this somewhat Tariable characteristic will 

 hardly do. There is no doubt, however, about the more dorsal position of the 

 spermathecae in A. trinitatis. 



- The very accurate drawings (figs. 2, 3) which accompany this paper should 

 render the characteristics of these organs clear. 



3 The genus being Malayan, the species may not be really indigenous 

 here. 



