(du. a. C, OUDEMANS). LIST OF BUTCU ACARI. 133 



(see flg. 6), bears 4 appendages, two claws like combs, one of 

 which is accompanied by a very long and slender third claw, and 

 one by a spatulate hair, a fact hitherto unknown in Clieyleti. It 

 most probably corresponds to a common hair, seen in the same 

 place in other Cheyleti. The teeth of the combs are directed dor- 

 sally, they are situated on the dorsal surface of the claws. Most 

 probably we must interpret these claws as follows. The first claw 

 is a modified hair of the second article; the fu'st or larger comb- 

 like claw and its accompanying claw-like hair are modified hairs 

 of the third article; and the second cornb-like claw and ist accom- 

 panying spatulate hair are modified hairs of a fourth article. 



Between these masticating claws we observe the blunt-ending 

 organ which I consider as the mandibulae coalesced together , 

 forming a very small gut, which ends in a hole (the mouth). 

 On the ventral surface of this organ I observed two mandible- 

 shaped organs, which stand nearly vertical, and wich I consider 

 as two fan-shaped hairs, the insertion of which I have, however, 

 not been able to detect, even not with oil-immension. 



Fig. 9. First leg , ventral vieto. The immovable base of each leg 

 bears two hairs a, b, the firsl article a fan-shaped little scale c, 

 and a little blunt protuberance dj the second article two scales e , /', 

 a ventral and a dorsal one; the third article bears two scales, 

 ff, /i, a ventral and a dorsal one; the fourth has a ventral long 

 hair i, a large scale with a nearly vertical position on its inner 

 margin, k, and three large scales with a nearly vertical position on 

 its dorsal surface , I , vi , n, of which m and u stand nearly mar- 

 ginal; the fiftli and last article bears a long hair on its inner 

 margin; this hair is feathered on the side turned to the leg; and 

 a long scale with a nearly vertical position on its outer margin; 

 further near to its top, on the inner (ventral) surface two short 

 hairs, not reaching its top, and finally on the top itself we find : 



(Fig. 10. Top of the leg.) two claws, two comb-like organs, 

 two very fine hairs on its dorsal surface and two thicker hairs, 

 curved on their distal end, on its ventral surface. Mr. Poppe has 

 firsl observed the two comb-like organs in Cheylettis Noerneri 



