MEGASCOLEX ANNULATUS. 195 



half-moon-siiaped prostatic gland, divided iu numerous lo- 

 bes , wliicli opens outwards by a S-like bended , muscular 

 duct on a very prominent cushion-like thickening of the 

 body- wall; by this duct also the vas deferens discharges 

 its contents. 



Length 90 m.m. ; number of segments about 90. 



Hab. Japan (von Siebold). 



Megascolex capensis n. s. 



This species has been collected by Horstock at the Cape of 

 Good Hope; there being only one specimen in a very bad 

 state of preservation (the posterior part of the body is 

 totally wanting) , I regret to be not able to give many 

 characters of this worm. There are two pairs of copula- 

 tory pouches in the 8th and 9th segment, opening be- 

 tween the 7tli and 8th, the 8th and 9th ring. Each co- 

 pulatory pouch consists of two parts, a large round ve- 

 sicle , and a thick , cylindrical tube , more than twice as 

 long as the vesicle and usually bended around it; over 

 its whole length the tube has the same diameter , but 

 near its free end it suddenly becomes narrower and ends 

 in a small oval sac. A large prostatic gland, consisting 

 of numerous slender lobes , opens by a feebly bended duct 

 on a thickening of the body wall in the 18th segment on 

 each side. The pore of the oviduct is distinct on the 

 14th ring. Number of setae on each segment about 40. 



Hab. Africa (Cape of Good Hope). 



Megascolex annulatus n. s. 



Cephalic lobe oblong , trapezoidal , extending over two 

 thirds of the buccal segment. 



Two pair of copulatory pouches in the 7th and 8th 

 segment , opening with distinct orifices on the anterior part 

 of these segments. Each copulatory pouch consists of 

 two parts, a large globular vesicle Avitli short duct, and 



Notes irom tlie Leyclcn Miuseum, Vol. V. 



