NO. 2263. NEW AFRICAN EARTHWORMS— SMITH AND GREEN. 161 



more prominent and conspicuous. A more detailed description of 

 P. finni would in all probability reveal still further differences. 



P. hindei Beddard (1901Z>) is apparently rather close to the new 

 form. It is sharply distinguished by the presence of a strongly 

 developed sucker-like area on the ventral wall of 17 and 18, which 

 includes the male and spermathecal apertures. The sperm sacs of 

 the former species are extremely slender and much shorter than in 

 the latter; the sperm ducts enter the narrow parts of the prostates 

 close to the bursa instead of entering diverticula of the enlarged 

 glandular parts as in the new species; and, finally, the median sac 

 of the former becomes much diminished in size posteriorly, and the 

 furcal branches extend much further posteriorly than in the new 

 form. 



P. kilindinensis Beddard (1891 and 1901a) differs from the new 

 species in some respects. The male pore is on 17/18 in the former 

 instead of being anterior to the middle of 17, as in the new form; 

 there is a prominent modified genital area on 18 to 21 in the former 

 and none in the latter ; there is absence of any " samenkiimmerchen " 

 in the former; and the median spermathecal sac is very slender in 

 the former with the spermathecal pore on the middle of 19, while in 

 the new species the median sac is much larger and the spermathecal 

 pore is on 18/19. 



POLYTOREUTUS MULTIPORUS. new species. 



Length, 10-20.5 cm. Diameter (maximum), 0.3-0.5^ cm. Somites, 

 264-485. Color (in alcohol), pale gray-brown. Prostomium, pro- 

 lobic. Setae (posterior to clitellum), aa:a5 :5(?:<7f7=4:2:5:f ; dd 

 equals about one-half of the circumference. Ventral setae of 19-26 

 or 27, modified and on papillae. Clitellum, 14-17 and encroaching 

 on 13 and 18. Nephridiopores, between seta lines c and d. Male pore, 

 median; posterior part of 17. Oviducal pores, posterior part of 14; 

 in seta line c. Spermathecal pore, median on 18/19. Accessory sper- 

 mathecal pores, median on 19/20-24/25 or 25/26. Septa 5/6 and 

 11/12, somewhat thickened ; and 6/7-10/11, more strongly thickened. 

 Gizzard in 5. Unpaired esophageal pouches in 9, 10, and 11. Cal- 

 ciferous glands, paired in 13. " Hearts," large in 10 and 11 ; smaller 

 in 9. Spermaries and spermiducal funnels, inclosed in sperm vesicles 

 in 11. Sperm sacs extend from sperm vesicles in 11 through many 

 somites. Prostate glands open separately into an eversible muscu- 

 lar bursa and extend posteriorly through a number of somites. 

 Sperm ducts enter prostates not far from their connection with the 

 bursa. Oviducts and ovisacs have the relations usually found in 

 the genus; the former with one or two "samenkiimmerchen." Sper- 

 matheca, forked at anterior end into two large branches which are 

 connected with the oviducts ; unpaired median sac without diverticula 

 62055— 20— Proc.N.M.Vol..55 12 



