390 Records of the Indian Museum. [Voiy. XIII, 



than those which follow. Septa 5/6, 6/7 and yj^ are very thin 

 indeed, — the extreme of delicacy and transparency ; 6/7 is really 

 behind the gizzard, since it can by gentle manipulation be peeled 

 backwards from off its wall as far as its hinder end. Septum 8/9 

 is scarcely thickened ; ix is a wide segment containing the anterior 

 seminal vesicles and posterior spermathecae ; 9/10 is slightly thick- 

 ened, and is united peripherally with the following septum 10/11, 

 and the next after, 11/12, in such a way that at first the three 

 together appear as if they constituted one enormously thickened 

 septum ; after separating them lo/ii and 11/12 are seen to be in 

 reality not much thickened. Segments x and xi, enclosed between 

 these fused septa, are narrow segments which contain the testes 

 and funnels, as well as two pairs of hearts and calcareous glands. 

 Septum 12/13 is somewhat thickened, and 13/14 and 14/15 perhaps 

 slightly . 



The gizzard, in segment vi^ is large and subspherical ; the 

 immediately preceding part of the alimentary tube is also fairly 

 firm. Calcareous glands are present in segments x, xi, xii and xiii ; 

 they lie within the arch of the heart, are kidney-shaped, well set 

 off from the oesophagus, and compressed antero-posteriorly ; the 

 two posterior pairs are larger than the two anterior. The typhlo- 

 sole is a strongly marked vertical ridge. There are lymph-glands 

 similar to those of Pheretima on the septa middorsally over the 

 dorsal vessel ; these become more or less distinctly paired towards 

 the hinder end of the animal. 



The last heart is in segment xiii ; but there is a pair of 

 commissural vessels, smaller than the hearts, though quite obvious, 

 in xiv. The dorsal vessel is single 



The excretory system is mixed mega- and micronephridial. 

 Meganephridia exist as far forward as segment xii, but are quite 

 small in front of xx, — indeed are hardly recognizable in xviii and 

 xix. From segment xx backwards the meganephridium, in the 

 form of a thin tube, is disposed in a large loop which reaches out- 

 wards on the body- wall to not very far from the middorsal line ; 

 the micronephridia are numerous, arranged in a transverse row along 

 the middle of each segment. The condition is the same towards 

 the hinder end of the body, — a long fine loop behind the septum 

 stretching to near the middorsal line, its ventral end about two- 

 ninths of the half-circumference from the ventral nerve cord, and 

 the micronephridia in a transverse row behind the meganephridium. 

 In the anterior part of the body the micronephridia lose their 

 transverse arrangement, and become scattered on the body-wall 

 (from about segment xvii forwards) and very numerous ; there are 

 the usual large tufts at the hinder end of the pharynx, and other 

 similar but smaller tufts on each side in the most anterior segments 

 of all. 



Testes and funnels are free, in segments x and xi (the testes 

 were rather doubtfully identified in xi) ; these segments are 

 enclosed between the fused septa, as previously explained, and con- 

 tain much coagulum, — probably masses of sperm-morulae and 



