NEW OR IMPERFECTLY KNOWN SPECIES OP EARTHWORMS. 73 



with shallow furrows on the surface. No terminal sac on the sperm duct. Last 

 heart in XIII. 

 Loc. — Tokyo. 



11. P. producta, n. sp. 



Length 140 mm., breadth 6 mm , num- 

 ber of segments 120. Clitellum XIV— 

 XVI, without setre. Number of sette in 

 VI 30, in VII 35, in VIII 39, in IX 31, 

 in the more posterior segments 40 — 45 \ 

 preclitellar sete large. First dorsal pore 

 in XIII/XIV. Spermathecal pores 3 

 pairs, in VI/VII, VU/VIIÏ, VIII/IX ; 

 genital papilke three pairs, one pair in 

 VII behind the chsetal line, two pairs in VIII, one in front of, the other behind, 

 the chaetal line. Sperm duct pores slit-shaped and not opening on papilla?, 

 therefore difficult to make out, separated by 8 set:e ; genital papilla; 3 pai r s in 

 XVIII, one pair in front of the chretal line, in a line with the male pores, and 

 two pairs, internal and external, behind the ductal line, the external pair being 

 in a line with the male pores. 



Intestine begins in XV ; one pair of intestinal cœca in XXV, extending for 

 three segments anteriorly. Thickened septa V/VI — VII/'VIII and X/XI — 

 XIII/XIV ; septa VIII/IX, IX/X absent. Spcrmatheca; 3 pairs, in VII, VIII, 

 IX, with large vesicular portions and short ducts, without diverticula. Testes 

 in X, XI ; sperm reservoirs in XI, XII. Ovaries comparatively large; ovisacs 

 small, in XIII, XIV. Prostate gland wanting ; no terminal bulb on the sperm 

 duct. Last heart in XIII. 

 Loc. — Tokyo. 



As cases of variation occurring in this species we may mention four speci- 

 mens which differed from the above in the following respects : (1) clitellar seg- 

 ments with about 40 setae, (2) number of setae in the spermathecal segments 45, 

 in III 30, in XX 48, (3) seta 1 small and of uniform size everywhere, (4) sperm 

 duct pores on top of papilla?, and separated by 10 seta;. We think that these 

 differences are hardly entitled to specific distinction. 



XVIII 



