198 



MR. P. E. BEDDARD ON 



[June 17, 



which possibly attract them. I cannot therefore form an opinion 

 as to the direction in which they were moving at the time of 

 death. As in P. kenyaensis, the oviducts open straight into the 

 median spermathecal sac at the two anterior corners. 



Text-fig. 50. 



Text-fie-. 51. 



--Sp.s. 



r-sp. 



Text-fig. 50. — Longitudinal section through genital segments of Poli/toreutus 

 montis-Tceni/ce. 

 A., ventral glandular area; B.^., bvivsa propulsoria; Sp., spermiducal 

 gland ; Sp.s., spermathecal sac. 



Text-fig. 51. — Longitudinal section through genital segments of Poli/toreufiis 

 Tcenyaensis. 



8.S., sperm-sac. Other letters as in text-fig. 50. 



I have been able to note the histological chai-acters of the 

 epithelia at the point of contact. The sac is lined generally with 

 a tall epithelium of granular appearance, the cells of which appear 

 to break down at their free extremities to produce the granular 

 matter with which the pouch is largely filled. At the slightly 

 bulging corners (suggesting by their protuberance rudimentary 

 diverticula of the median sac), where the oviducts open, the tall 

 granular epithelium is underlain by a columnar epithelium which 



