. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. 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 th
. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. 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 pairs 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) seta1 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 XVIII. Please note tha
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