37 



The gizzard consists of two divisions , separated by a narrow mem- 

 branaceous interval. 



The nephridia in the posterior region of the body are arranged in 

 three groups of delicate tubules on each side; the internal of them is 

 situated near the dorsal setae. 



The penial setae of our species much resemble those of B. Bolavi *), 

 found by Mr. Michaelsen in a tannery near Hamburg. Mr. Michaelsen 

 kindly forwarded me some individuals of this species, which is un- 

 doubtedly imported in Germany. _B. Bolavi differs from B. malayana, 

 by its more slender habit, its segments of the anterior body-region 

 having all the same longitudinal diameter and by its incomplete clitellum, 

 wanting the glandular modification at the ventral side; it has not 

 but a single oviducal pore, surrounded by an oval wall, of which 

 there is not any trace in our species. Michaelsen states, that the 

 spermathecae of B. Bolavi have an ellipsoidal shape; this must be a 

 slip of the pen , for as illustrated by fig. 14, they have a more retort- 

 like appearance and show a constriction like those of other Benha- 

 mm-species. 



Geoscolecidae. 

 Glyphidrilus n. g. 2 ). 



Setae of the common shape, arranged in four series of couples. Cli- 

 tellum provided with a folded, crenulated ridge on each side. Two 

 pairs of testes in segments X and XI; vasa deferentia opening in 

 the intersegmental groove of segment XXVII and XXVIII, provided 

 with a small prostate-gland. Ovaries in segment XIII ; oviducal pores 

 upon segment XIV. A large number of spermathecae , more than one 

 pair in each segment. 



4. Glyphidrilus weberi n. sp. 



Java: Buitenzorg, in humid soil, several specimens. 



Sumatra: Manindjau and lake of Singkarah, dredged at great depth. 



Flores: Kotting. 



Celebes: Luwu. 

 The length of the largest specimen is 120 mm.; the number of its 

 segments amounts to about 250. Most individuals are totally disco- 



1) Jahrb. der Hamb. Wissensch. Anstalten, VII, 1891. p. 9. 



2) Derived from y y^vipiç (/5oç), notch and o £/>7acç, worm. 



