OUGtOGHJGTA. 269 



Prostomium epilobous 1/2. 



First dorsal pore in intersegmental furrow 6/7. 



Clitellum not developed. 



Male apertures on segment XVIII., in line of setse h, 1/6 of the 

 circumference apart, on very small inconspicuous whitish papillae. 

 The male apertures are included in a slightly raised genital field 

 (fig. 11), of somewhat oval shape, which embraces the ventral 

 portions of segment XVIII., half of XVII., and two-thirds of XIX. 

 Also situated in the genital field are a pair of flat circular areas, each 

 with a dark dot in the middle, occupying the anterior part of XVIII. 

 and encroaching on XVII. ; these areas are thus situated between 

 and in front of the male apertures. The intersegmental furrow 

 17/18 is obliterated ventrally. 



The spermathecal apertures are very inconspicuous, one pair, in 

 furrow 8/9, just external to the line of setse b. 



The setse form a ring, interrupted both dorsaliy and ventrally. 

 Ventrally, aa = 3 ab nearlj^ ; dorsaliy, zz is quite an irregular 

 interval . The more ventrally situated setss {ab , cd , ef) form a series of 

 regular longitudinal lines. Behind the cliteUum, ab = bc=z cd] 



■J , I , but 



:=de=z ef 



the differences are slight only. Seta e is about at the lateral 



line of the body ; dorsal to / are two or occasionally three more 



setse on each side, irregularly placed ; thus there are usually 16 setse 



per segment. In front of the clitellum the setse are fewer, 6 only 



on each side. The setse of segments II.-VI. are enlarged, especially 



a and 6. Numbers of setse : 12/V. , 12/IX. , 12/XIII. , and 16 behind 



the clitellum. 



Internal Anato.my. — Septum 7/8 is moderately thickened, sejjta 

 8/9-13/14 considerably, 14/15-17/18 again moderately. 



The gizzard is in segment VI. Calciferous glands are present in 

 XV. and XVI. as considerable dilatations of the oesophagus, v^ery 

 vascular , with a lamellated structure internally. The intestine begins 

 in XVIII. No intestinal diverticula were seen. 



The last heart is in segment XIII. 



The excretory system consists of micronephridia. 



Testes and male funnels are free in segments X. and XI. The 

 vesiculas seminales, paired, in XI. and XII. are racemose in form. 

 The prostates are small, confined to segment XVIII. ; the duct is 

 thick, and straight except for a bend at its inner (proximal) end. 



No penial setae were discovered. 



Ovaries were present in segment XIII., but the ovarian funnels 

 were not seen. 



The spermathecss lie in segment IX., and open in furrow 8/9. 

 The ampulla is elongated, and somewhat dilated proximally ; 

 there is no distinctly marked-ofif duct. The diverticulum is finger 

 like, and joins the base of the ampulla. On the left side (fig. 12) 



