140 Memoirs of the Indian Museum. [Vol. I, 



ca . ^ u). Median ventral distance on the anterior part of the body more than twice 

 as large as the middle lateral distances, at the posterior part only f as large (anteriorly 

 aa = 2^ be, -posteriorlj aa = i^ be). 



Clitellum not yet developed. 



Male pores at the intersegmental furrow 11- 12 close to and medial from the 

 lines of setse e. 



Female pores not seen, probably at the intersegmental furrow 12-13 or at the 

 anterior part of segment 13. 



Spermathecal pores at the intersegmental furrow 7-8 in the lines of the male 

 pores, viz., close to and medial from the lines of setae c, which are not distinctly marked 

 here, the lateral setae of segments 2 — 9 being obliterated. 



Internal Anatomy* — Septa 4-5 — -8-9 much strengthened, rather thick, the 

 following septa very thin. Septum 9-10 and some following dorsally are somewhat 

 dislocated backwards, the first of them nearly for one segment's length. 



Alimentary tract: (Esophagus simple. Six well-developed gizzards, one in each 

 of segments 19 — 24 ; a seventh in segment 18. The six gizzards in segments 19 — 24 are 

 big and distinct. The gizzard in the eighteenth segment is apparently rudimen- 

 tary, smaller than the posterior gizzards and not distinctly separated from that of the 

 nineteenth segment. 



Circulatory system : Dorsal vessel simple. lyäst hearts in the tenth segment. 



Nephridial system meganephric. 



Male organs: One pair of rather small testicular vesicles depending from 

 the hinder surface of septum 9-10 into the tenth segment; The testicular vesicles are, 

 broadly united to that septum, not stalked. A long, irregularly undulating (but not 

 much bent and not at all coiled) sperm-duct leads from each testicular vesicle down- 

 wards at the hinder surface of septum 9-10, and finally opens into the proximal end 

 of the prostate or atrium. The prostate or atrium is tube-like, rather long and thick, 

 externally quite smooth, showing a muscular glittering. It is bent in an U-form, 

 describing a rather long loop, the two branches of which are closely pressed together. 

 The distal end of this organ is a little enlarged, but without distinct copulatory pouch. 

 The proximal end narrows to pass into the thin sperm -duct. 



Female ©rgans: A pair of large ovaries in the twelfth segment. A pair of 

 moderately long, somewhat undulating egg-sacs depending backwards from septum 

 12-13 through some segments. 



Spermathecae entirely in the eighth segment, consisting of an irregularly pear- 

 shaped, somewhat bent or flattened ampulla and a very long duct. . The duct is not 

 separated off abruptly from the ampulla. It is pressed throughout its length against 

 the hinder surface of septum 7-8. From the dorsal part of this septum, where the 

 ' ampulla is situated, it leads downwards, describing irregular windings, which are especi- 

 ally complex in the middle part. The course of the two ampulla-ducts is nearly sym- 

 metrical; The proximal parts of these ducts are relatively thick and show a muscular 

 glittering. Distally the ducts are narrowed. The rather narrow distal end opens 

 directly to the exterior. There is no trace of an atrial chamber. 



