237 
Zeiss Okularmikrom. Å. Oc: 2; 
Length 76. 
068::33. 
Tail 9, 
Width 1!/2. 
Diplogaster longicauda Claus. 
Clans Le 15884; 
This species I have found in putrefying fungi in the Kilde- 
skov together with a short-tailed form of the same genus which I 
did not succeed in determining to species. 
Diplogaster gracilis Bitschli. 
1876. Bitsøhli; p8378. 7. XXIIL fik. a—€. 
Also this species were collected in the Kildeskov in putrefying 
fungi. It agrees with the D. longicauda in having the tail tapering 
very much posteriorly and terminating in a long pointed extremity. 
It is easily known by its female organ being unsymmetrical, with 
the vulva placed a little before the anus. The male has an incon- 
spicuously developed bursa and two long slender spicules, with a 
scarcely visible accessory piece. 
Cephalobus elongatus de Man. 
1884, De Man; > 96. TICIV.. 8.57. 
1906. Kati Marcinowski, p..215. 
Only two species were found of the genus Cephalobus. C. elon- 
gatus was collected in the Kildeskov in a putrefying stub. It appears 
to me beyond doubt that it occurs- here as a veritable Nematode of 
putrefaction; I kept it for weeks in a little glass filled with the 
putrefying wood-mass in which the animals propagated lively. De 
Man indicates that the species ,,bewohnt nicht nur die feuchte, 
oder von siissem oder brackischem Wasser getrånkte Erde der 
Wiesen und Marschgrinde, sondern auch den sandigen Dinenboden 
an den Wurzeln der dort wachsenden Pflanzen". After - later 
