BY J. J. FLETCHER. 995 



Setae in eight straight rows, those of each outer couple remark- 

 ably far apart, not only further apart than those of each inner 

 couple, but also (half as far again or even more) than the two 

 couples of each side. 



Clitellum of four segments, xiv-xvii, together with a small 

 anterior portion of xviii (but has not attained its maximum deve- 

 lopment), complete all round except posteriorly for a little space 

 on the ventral surface of xvii. 



Male pores not at all conspicuous (probably only owing to the 

 condition of the specimen) ; the inner couples of setae on xviii are 

 not visible, but about corresponding with the position of each inner 

 setae of these couples is a small pore, from one of which protrudes 

 a portion of what is evidently a penial seta ; possibly these are the 

 male pores. Oviduct pores and spermathecal pores as in C. 

 mediterreus. 



Nephridiopores : a pair to a segment after the first, in two 

 alternating series as in C. mediterreus ; the first four pairs, and 

 after these on alternate segments, opposite the fourth setae ; on 

 segments vi, viii and x opposite the third setse, and on xii and 

 after that on alternate segments opposite the second setae. Dorsal 

 pores commence after segment v. Accessory copulatory structures 

 not present. 



Alimentary canal : gizzard in v ; five pairs of latero-inferiorly 

 situated calciferous pouches in ix-xiii. 



Genitalia : two pairs of vesiculae seminales in ix and xil, &c. as 

 in C. canaliculatus ; there is a single vas deferens on each side 

 joining the genital duct close to the prostates ; penial setae 

 are present. Spermathecae three pairs, each of them with two 

 caeca. 



Last pair of hearts in xiil. 



Eight mesenteries from the anterior one of vii to the posterior 

 one of XIII are thick. 



The nephrida of the lower rows (opening opposite the second 

 setae) as well as those of the upper rows have a proximal vesicular 



