384 OLIGOCHAETA 



Three pairs of spermathecae in VII-IX ; ' the single divertieulum longer than in the 

 last species. Hab. Samar, Loquilocun. 



(35) Megascolex pictus, MICHAELSEN. 

 M. pictus, MICHAELSEN, ibid., p. 246. 



Definition. Length, 240 mm. ; breadth, 9 mm. ; number of segments, 137. There are as many 

 as 80 setae in a row ; the ventral setae are closer together than the dorsal. Dorsal pores, 

 XII/XIII. Ctttelliim, XIII-XVIII. Between male pores are 1 9 setae. Gizzard, in IX, 

 X (?). Spermathecae four pairs in VI-IX; each has a single divertieulum. Hab. 

 Borneo; Sampit. 



It is doubtful whether this species ought not to be referred to Perichaeta. The 

 gizzard is apparently as in Perichaeta, and the segments in which it lies (queried 

 by MICHAELSEN, not by me) are said to be 'innerlich verschmolzen.' The occurrence 

 of setae between the male pores is characteristic of Perichaeta, not of Megascolex. 



(36) Megascolex armatus (BEDDABD). 



Perichaeta armata, BEDDARD, Ann. and Mag. Nat. Hist., Oct., 1883, p. 216. 

 M. armatus, ROSA, Ann. Mus. Civ. Geneva, vol. vii. (2 a), p. 134. 



Definition. Length, 90 mm. ; breadth, 4 mm. ; number of segments, 170. Clilellum, 

 XIV-X VII; setae present forming complete rings. Dorsal pores commence XI/XII. Setae 

 about 44 per segment ; on the ventral surface the setae get to be larger and separated by wider 

 intervals. Gizzard in VI. The intestine without a typhlosole. Septa V I] 'XIV thickened. 

 Last pair of hearts, XIII. Male pores furnished with a sac of penial setae ; these are 

 covered at the extremity with numerous, rather long spinelets, the apices of which are directed 

 towards the end of the seta. In segment XIV are a pair of egg-sacs ; the spermathecae three 

 pairs in segments VII, VIII, IX; each has two minute diverticula. Hab. Calcutta ; 

 Burmah ; Labuan (Borneo] ; Seychelles ; Nias. 



This species appears to be the most generally diffused Megascolex of the East. 

 It is quite possible that it is identical with one of the two species described by 

 PERKIER (4) as possibly new genera of Perichaetidae, viz. P. coerulea and P. luzonica; 

 P. coerulea is stated by PERRIER to have two oviducal pores instead of the usual 

 one ; in this particular it, of course, agrees with my M. armatus ; in P. luzonica 

 the ventral setae are larger than the others ; this again is a character which is met 

 with in M. armatus, and for the matter of that in other species of the genus 

 Megascolex; but it also occurs in P. houlleti, which is a member of the genus 



