249 
Uorvlaimus macrolaiinus de Man. 
PI. IV. fig. 38, PI. V. figs. 41, 44, 45, 47, 48. 
1884. De Man,, p. 191, T. XXXIII. %. 138. 
v. Daday, p. 125, T. XIV. fig. 12. 
1907. De Man, p. 20. •' ; 
This species, established by de Man in 1884 and later only 
collected by Daday in Hungary and by de Man near Meudon in 
France, has proved to be one of the most common Dorylaimi in 
Denmark and widely distributed in this country. On account of the 
presuined scarceness of the animal and in spite of its appearance 
being very characteristic I sent my first specimens to Dr. de 
Man asking his opinion, and he affirmed the correctness of my 
determination. In this country the species has been taken in the 
foliowing localities: The first specimens were collected ih Lynæé 
in a bog near the plantation and in a little pool behind the 
church. Then it was taken in Lyngby Mose where it oc'cufs 
abundantly in the Sphagnum; moreover in Lyngby Sø itself in 
mud on the roots of Stratiotes together with' 4 D. tenuis. At the 
Furesø it has been collected among plants in the edge of the 
water together with D. stagnctlis. On Langeland it has beeh taken 
in a pool on roots of plants. Finally I have one specimen from 
Jutland, a male taken on roots of plants near the bank of 
Varde Aa.* ' J 
The species seems to vary within rather wide limits both as 
■ - ^ ^ ■ . ; r - 
to laj’geness and — as can be seen by the noted measurements — 
with respect to the relative proportions. A female from Lyngby Sø 
with seven eggs in the uterus has a length of 2,8 mm; a female 
from the Furesø still without eggs in the uterus measures 4,0 mm. 
De Man notes for the female 4,5 mm; I have met with no speci¬ 
mens of that length. A male from Lynæs measures 2,04 mm in 
length, de Man’s male had the length of 3.7 mm. 
With respect to the male I have made a rather interesting 
observation which might perhaps prove to apply to other species, 
