324 DESCRIPTIONS OF EARTHWORMS, 
Perichaeta Martensi Michaelsen. 
A single specimen from the Lampongs (Sumatra), col- 
lected by Dr. Vorderman. 
Among the specimens of P. urceolata I met with an 
individual, provided with four pairs of spermathecae, which 
agree in their structure with the spermathecae of P. Mar- 
tenst (from Banka), as described and figured by Michael- 
sen '). The charasteristic of those organs is, that the 
slender, club-shaped diverticulum possesses another small, 
globular, sessile diverticulum; in our specimen the greater 
part of spermathecae showed this character, however in 
three of them it was absent. It seems to me liable to 
question wether P. Martensi must not be considered a 
variety of P. indica, for in my paper on Sumatra-earth- 
worms’) I pointed out, that in some specimens of this 
species (from Soepajang) the tube of the diverticulum in 
the middle of its length possessed another tubular appendage. 
Perichaeta Bosschae u. sp. 
A single specimen, collected by dr. Bosscha in Sambas, 
Borneo. 
I received two Perichaeta’s from Borneo, but one of 
them was not in a state of sexual maturity and could 
therefore not be identified; the other one appears to me 
to belong to a new species. It is a rather large worm, 
dark-brown over the total surface of the body, with white 
circles of setae; its length is 170 mm. The number of 
segments is 125. The cephalic lobe distinct, extending 
back over two-thirds of the buccal segment. A dark-co- 
loured clitellum, without setae. The male pores have the 
shape of fissures, only surrounded by a faint wall; the 
oviducal pore is single. Four pairs of spermathecal pores 
1) Archiv fiir Naturgesch. 1892, p. 34, pl. XIII, fig. 20. 
2) Midden-Sumatra, reizen en onderzoek. der Sumatra-expeditie, 1877—79, 
Natuurl. Hist., Dl. IV, 2, Pl. I, fig. 10. 
Notes from the Leyden Museum, Vol. XV. 
