[DU, A. C, OUUKMANS). NOTES ON ACARI, 127 



shield, oval in shape, with top turned backward. Between the 

 shoulders and the vertex the outline shows a second smaller shoul- 

 der. Between the shoulder and the posterior end the margin of 

 the shield has two denticulations or two incisions, which, however, 

 are not comparable with the erosions of the shield of Greeniaper- 

 klnsi Oudms. The dorsal shield is provided with about 80 relat- 

 ively small hairs , which are somewhat curled and directed outward 

 and forward, and symmetrically arranged. The dorsal shield is on 

 the sides and posteriorly surrounded by the unprotected margin of 

 the body , which bears hairs of the same shape as those on the 

 dorsal shield. The hairs which surround the dorsum are the longest, 

 as long as about the breadth of the legs. 



On the ventral side (Fig. 2) the sternal shield is somewhat 

 trapezoidal, erosed as it were on its margins, bearing four hairs; 

 it is small, compared with its breadth. The genital shield is trian- 

 gular, long, distinctly chitinized posteriorly, indistinctly anteriorly. 

 The anal shield is broad oval, large. The sügwata ore cup-like; 

 their margins are bent inward , leaving an opening like a 

 key-hole, and striated radially. This cup is of course a rudiment 

 of'a peritrema. The venter is hairy. 



The episfoma (Fig. 3) is a triangular hyalin appendage with an 

 indication of a lateral tooth. 



The mandibles (Fig. 4) are short , stout ; their immovable finger 

 has a short canine tooth ; the movable finger is longer and pro- 

 vided with an indication of a molar. 



The hjpostoma (Fig. 5) does not show inner or outer malae, 

 but only a blunt chitinized appendage with a hyalin short piece. 



The ytrst leg is singulary provided with sliort, strongly chitin- 

 ized, pailly blunt and partly sharply pointed thorns, all directed 

 backward. The second leg. Its tibia has a blunt thorn directed 

 backward ; its tarsus one blunt thorn, directed outwaid, and one 

 forward (distalward). Femur, genu and tibia have moreover long 

 stiff hairs, directed outwaid and backward. The third and fourth 

 lega bear long stiff hairs. On the coxae 1 , 2 and 3 (Fig. 2) there 

 are two, and on coxa 4 only one sharp, somewhat curved spines. 



