fro. 



. 41 



55 



42, 



55 



43. 



55 



44. 



55 



45. 



55 



46. 



55 



47. 



55 



48. 



55 



49. 



55 



50. 



55 



51. 



55 



52. 



55 



53. 



55 



54. 



55 



55. 



55 



56. 



55 



57. 



51 



58, 



>r 



EXPLANATION OF PLATE XI. 



-Octochaetus pallidas ; spermatheca. 



The same ; tip of penial seta, x 600. 



Octochaetus ganeshae ; spermatheca. 



The same ; tip of penial seta, x 600. 



The same ; tip of copulatory seta, x 500. 



Octochaetus pachpaharensis ; spermatheca; div., diverticulum (?). 



The same ; tip of penial seta, x ca. 300. 



Eutyphoeus turaensis ; spermatheca seen from above, as in dissection ; the 



sac is attached to the body-wall by the middle of its under surface. 

 The same ; penial seta ; a, seen as a whole, x ca. 55 ; b, tip more highly 



magnified, x ca. 180. 

 Eudichogaster ashworthi (co-type) ; copulatory seta from spermatheca! 



region. 

 The same ; copulatory setae of neighbourhood of prostatic apertures (not 



however from segments xvii or xix) ; a, from Wahi near Mahableshwar ; 



b, from Poona ; c, from Saugor; d, from Jubbulpore. 

 Eudichogaster trichochaetus ; penial setae ; a, as a whole, X 37 ; b, the tip, 



more highly magnified, x 550. 

 The same ; end of copulatory seta ; x ca. 400. 



Eudichogaster prashadi ; a, region of male genital apertures ; b, end of copu- 

 latory seta, x 500. 

 Eudichogaster falcifer ; distal end of penial seta, x ca. 700. 

 ■Eudichogaster pusillus ; spermatheca. 

 The same; tip of penial seta. 

 Eudichogaster kinneari ; clitellum and male genital area (the seminal grooves 



are not seen ; the grooves shown are irregular fissures in the floor of the 



H-shaped depression). 

 59. — The same ; spermatheca. 



