28 
IVAR TRÄGÅRDH, 
(Schwed. Südpolar-Exp. 
15. Oribata alata Herm. 
Locality : No. 16. One specimen. 
16. Hermannia macronychus nov. spec. 
(PI. III, fig. i.) 
Length 0,76 mm. Breadth o, 45 mm. 
Colour, very dark brown. 
Texture , finely punctured. 
Céphalothorax broad and arched, 0,24 mm. long, anteriorly rounded, sharply di- 
vided from the abdomen; the sides are slightly excavated on a level with the lam- 
ellar hairs. There is one transverse sulcation in front of the lamellar hairs. A broad 
raised, subtriangular portion between the pseudostigmata is divided from the other 
part of the céphalothorax by a sulcation forwardly curved. This portion is itself 
divided in two by a short longitudinal light-coloured groove, and is very densely 
and deeply punctured. No trace of lamellae but the lamellar hairs persist far for- 
ward and are thick and slightly spatulate. Pseudostigmata large, situated at the 
top of large, mamillary projections. Pseudostigmatic organs rather long and rod- 
like, very slightly thickened at the ends, which are rough. 
Interlamellar hairs small, spatulate, situated in front of the raised, punctured 
portions. 
The legs , rough, very thick and heavy. Hairs thick, white, spatulate or clavate. 
Tibiae short, scarcely, if at all, longer than the genua. Tarsi rather long, those of 
the 3rd and 4th pairs of legs twice as long as the tibiae and of even width through- 
out; tarsi I and VI more thick and club-shaped. Tactile hairs of legs I and II 
long, nearly twice as long as the tarsi; one situated at the end of tibia I, one in 
the centre of tarsus I, two on tarsus II; tactile hairs of tarsi III and IV of moderate 
length. Claws monodactyle, very strong. 
Abdomen very arched, sharply divided from the céphalothorax, with 6 rows of 
thick whiteish, spatulate hairs. Genital and anal plates near together, occupying the 
whole length of the ventral plate. Genital aperture very large, square, with rounded 
angles, broader than long, with 3 pairs of hairs. Anal aperture large, rectangular, 
nearly twice as long as broad, its length exceeding the width of the genital aperture, 
with 2 pairs of hairs. 
Locality: No. 14, in damp moss. One specimen. 
