A. C. OUDEMANS, NOTES ON ACARI. 241 
inward and distally pectinate inward. The 3 knife-like hairs 
of the femur and of the genu simple, their sharpe forward, 
their top rounded. Tibia and tarsus normal. 
Legs slender, except (fig. 1) legs II, which are twice 
thicker, so that they simulate male-legs. All the hairs of the 
legs are bristles, except those of tarsus I. The thorn-like 
bristles on tarsi II, III and IV and of femur III and IV may have 
a separate mentioning. Tarsus IV distally without any bristles 
or thorns, only with a pair of suprapraetarsal fine hairs. 
Praetarsus IV (fig. 1) long, without any particularities. 
2. Sebaia palmata Oudms. 
(With Plate IX fig. 15—20). 
1904 Sept. 1. Sebaia palmata nov. sp. Oudemans in Ento- 
mologische Berichten, n° 19, p. 171. 
Female. (Fig. 15). Length 180 a. Codes most 
probably rose. As I found it, it was dead, lying in the ring 
of glycerine around the cover glass of a preparation, preserved 
in a long and low preparation box, made of straw-paste-board. 
Shape. It has a triangular »cephalothorax« and a shield- 
shaped »abdomen« ; it is somewhat more than one and a half 
times longer than wide, well shouldered ; its legs are slender 
and shorter than the width of the abdomen. 
Dorsal side (Fig. 15). The so-called »cephalotho- 
rax« is composed of 4 segments only, as far as I can observe; 
therefore I will not call it a prosoma, as a prosoma is build up 
of at least 7 segments. A fact is that the first, second and third 
segment have coalesced to one piece which is distinctly demar- 
cate from the fourth segment. The first segment bears only 
two feather- (?) like vertical hairs. The second segment is 
provided with two more or less umbrella-shaped hairs with 
radial markings (Fig. 17), there where it shows a kind of 
shoulders. The third shows a pair of ditto, more triangular 
