BY J. J. FLETCHER. 617 



Setse in the anterior region of the body longei-, stouter and 

 farther apart, on the preclitellar segments 22 per segment ; at 

 about XV the number increases to 28 or 30, and still further back 

 to about 36, but in some cases if not usually the last few segments 

 seemto be smooth and setse are not visible; in the median dorsal and 

 ventral regions is an interval devoid of setse, the dorsal interval 

 slightly the narrower, in each case between twice and thrice the 

 width of an interval between two setae in the same region. The 

 rows of setae ar-e frequently not quite straight, though this may 

 perhaps be due to unequal contraction of the parts of the body, 

 or to the accidental absence of some of the setae. 



Girdle not developed in any of the specimens, but evidently 

 comprising xiv-xvi together with a portion of each of segments 

 XIII and XVII, as in nearly all the specimens the segments men- 

 tioned are differently coloured. 



Male pores two, not on papillae in any of the specimens, 

 corresponding with the interval between the hrst and second setae 

 on each side. Oviduct pores two, in front and slightly ventrad 

 of the first seta on each side. Spermathecal pores five pairs, on the 

 anterior margins of segments v-ix, ventral, in line with or slightly 

 dorsad of the first seta on each side. 



Dorsal pores commence after segment iv. Nephridiopores not 

 visible. Accessory copulatory structures comprising pairs of pores, 

 each pair usually on a ridge, at the junctions of xvii-xviii, xvili- 

 XIX, xix-xx, and xx-xxi, the first two pairs ventrad of the male 

 pores, the others in line with them. 



Alimentary canal : the gizzard is in segment v ; in each segment 

 from IX to XIV or xv the intestine has its lumen dilated and its 

 walls vascular but there are no diverticula ; the portion in xvi is 

 very narrow, and the large intestine begins in xvii. 



Genitalia : vesiculae seminales two pairs, one pair in ix and one 

 in XII, the intervening segments containing the true testes and the 

 ciliated rosettes as well as a large qviantity of spermatozoa ; the 



