(dr. a. c. ouuemans). list of dutch acari. 131 



pair of sub-marginal, or better ventral large scales, referable to 

 the scales, marked by De Geer with I (see fig. 1). The left one 

 is seen somewhat obliquely, the right one just on its plane (hori- 

 zontal position). 



The line of demarcatioji between the prosoma and metasoma is 

 situated nearly on the half of the animal's body length ; two distinct 

 lines are running from the left to the right, slightly curved back- 

 wards. The back of the animal does no.t show the shields, which 

 Michael has observed in Cheylehis ßaheUlger. 



On the hind margin we observe six fan-chaped hairs, much 

 smaller that the ten of the prosoma. The number does correspond 

 with that of De Geer's mite and with that of CJiei/leius faleUlger, 

 but the position is somewhat different from the latter, the two 

 of the last pair being inserted exactly on the margin and not on 

 the ventral surface, as in Ch. ßaheUlger. 



Moreover the metasoma shows on ils margin (see fig. 5) to the 

 right a seventh fan-shaped scale, and to the left a very litte spot 

 corresponding with the place of insertion of the scale to the right. 

 We may safely admit that here stood a little fan-chaped scale too. 

 The same we may admit with regard to the four other marginal 

 spots of the metasoma, two on the left and two on the right side. 

 These spots are much larger than the other; and therefore we 

 may conclude that the four fan-shaped scales which stood here 

 were in size between the ten of the prosoma and the seven 

 which are still present on the metasoma. Of these seven five 

 are pressed against the body and have therefore a nearly ver- 

 tical position , whilst the two anal scales have a horizontal position. 

 The anal scales correspond with those marked c by De Geer (see 

 fig. 4). 



Moreover the prosoma shows six pairs, and the metasoma also 

 six pairs of papillae. It is nearly impossible that these papillae 

 are broken hairs or the remains of scales which might have been 

 fallen off. 



Fig 6. Dorsal view of pseudocaplUdum. This part is a little 

 difformed by the manipulation, but I nevertheless have figured it 



