2435 
the 20. 2. 10. After thawing weather ;for some days the lying 
snow had partly melted and the earth under the trees was covered 
with putrefying leaves; among these it was taken, only one 
specimen, together with Plectus parietinus, Plectus granulosus and 
Cephalobus persegnis. It did not appear to agree with any of the 
species of de Man. Accidentally I lost the specimen under the 
preparation and I have only these few notes and the measurements 
taken on the living animal. 
Length 871 2. 
Oes. 79 - 
Vulva 587 - 
Tail 52 - 
Width 19% 
Spear . 13 - 
Tylenchus Davainei Bastian. 
1865; Bastian, p. 126, Pl; X. fig. 109—11. 
1873. Bitschli, p. 37. T. I. and II. fig. 7 a—c. 
1884, De Man, p. 151. T, XXIV. fig. 100. 
I have only seen a few freeliving species of the genus Ty/en- 
chus and of these species only a single or a few specimens. 7. 
Davainei was taken in Ordrup Mose behind Christiansholm. It was 
a mature female with one egg in the uterus and was found on 
roots of grass in sandy clay, July 1910. 
Tylenchus robustus de Man. 
1884, De Man, p. 144. T: XXH. fig. 92. 
This species was taken in the ,,Vintappergaarden"s Mose on 
roots of grass, only a few specimens. 
Tylenchus dubius Biitschli. 
1873. Bitschli, p. 89: T£ H. fr. 9a—e; 
1884. De Man, p. 145. T. XXII. fig. 98. 
Hellerup Strandeng, a few specimens. 
16" 
