226 A. e. OUDEMAXS, NOTES ON ACARI. 



Moreover there are (Fig. 9) n o s e c u n d a r y shields. 

 Between the coxae 3 pair of bristles, apparently belonging, 

 like the legs themselves, to the 3'', 4^'' and .5"' postoral seg- 

 ments. These bristles afterwards w i 1 1 b e p 1 a- 

 c e d on the sternal shield. Behind the coxae III a 

 pair of bristles belonging to the 6"' postoral segment which 

 in future will bear the legs IV, This pair o f b r i s 1 1 e s 

 Av i 1 1 afterwards be placed in the m e t a s t e r- 

 n a 1 shields, if the larva becomes a female. 

 Behind this pair another one wliich belongs to the V' pos- 

 toral segment and w h i c h will b e i m p 1 a n ted i n 

 the genital shield if the larva becomes a 



o 



female. Moreover a pair of small ventral bristles, two 

 pairs quite on the edge and three circumanal hairs, which 

 are as lono' as half of the creature's o-reatest breadth. 



Epistema (Fig. 10) well demarcate from the coxae of 

 the maxillae ; anteriorly provided with an extremely fine ridge 

 like a semicircle open backward ; its front edge with three 

 short and wide cusps, each distally denticulate. 8 t y 1 i short. 



Mandibles not reaching the level of the shoulders 

 (Fig 8, dotted fine). Their chelae (Fig. 11) comparatively 

 robust, with tibial and tarsal sense-organ ; upper jaw with 

 three minute incisors, no canines and a blade-like long, distally 

 finely denticulate molar. Lower jaw with 3 minute incisors 

 of which the second and third are sharp and directed back- 

 ward, and a low canine ; no molars. P u 1 v i 1 1 u m : a row 

 of hairs. 



Maxillae. (Fig. 12). There are only two pairs of hairs. 

 In the median streak you observe about 17 transverse rows 

 of minute pins, close together, except the foremost and the 

 second one whicli leave a considerable distance between each 

 other. Between the second row and the hinder pair of hairs 

 a marking like a V. The demarcation between the right and 

 left half of the hypostome goes not far backward. The horns 



