258 A. C. OUDEMANS, NOTES ON ACARI. 
deutonympha and female here is also a part inside of the 
epimera IV. Anterior lateral shields large, nearly semi- 
circular, wholly ventral; middle ones fused with posterior ones, 
wholly ventral, except a narrow band which is also visible on 
the dorsal side; they are contiguous with the coxal plates III 
and IV. Hairs: to the sides of the anterior end of the 
sternum a pair of short and thin hairs. Inside of the coxal 
plates III close to the trochanteres III a pair of ditto. Inside 
of the anterior (proximal) ends of coxal plates IV a pair of 
ditto. Behind the epiandrium a pair of ditto. To the sides of 
the anterior end of the anal split a pair of ditto. To the 
sides of the anal suckers a pair of ditto. The lateral hairs are 
long; the longer pair extends behind the abdomen, whereas 
the shorter ones do no reach the anal split; they stand more 
inward of the longer ones than in the female. Genital 
aperture small, on a line with the proximal ends of the 
trochanteres 1V. Penis small, dumbbell-shaped. Epian- 
drium almost horse-shoe-shaped. Anal suckers small, 
yet well developed, not rudimental, to the sides of the anus. 
Mandibles strong, so that they project like a pair of 
cones. 
Maxillae normal; underside of head large, almost square. 
Legs longer than the width of the body; legs III slightly 
longer and stronger than legs I and II; legs IV again longer 
and stronger than legs III, extending behind the abdomen 
with more than the half of their tarsi. 
Oekological remark. The females are ovoviviparous. 
Their eggs have a very thin and transparent scale, and when 
laid they already contain a full grown embryo. It is possible 
that the female propagate parthenogenetically, but I believe 
that it is very hazardously to assure they do so, without 
having bread the creatures. 
Habitat in the spools of the great quills of Totanus 
totanus (L.). 
