(dr. a. C. OUDEMA..VS). NOTES ON ACARI. 123 



but with 6 transverse rows of small shields, corresponding to 6 

 sec^ments The two shields of the first row coalesced, to form one 

 elongate shield. The 4 sliields of the 61 h row ditto. Each shield 

 with a curved thick, small hair or bristle, which moreover is 

 hairy (see fig. 30). So there are two longitudinal hairs near the 

 median fine; then follow two ditto, beginning on the 3d segment ; 

 then two lateral rows (see also fig. 32). 



Ventral side (Fig. 31). I could not observe the coxal plates. 

 The -enital aperture lies in the middle of the abdomen, is long 

 elliptil is shut by two valves, under each three suckers are dis- 

 cernable, and overgrown hy 4 n.inute hairs on each side. On a 

 httle distance from these there are again three minute hairs directed 

 toward the aperture. Anal aperture between genital aperture 

 and edge of abdomen, long, narrower than genital one, shut by 

 two covers, flanked by one row of 4 and one .ow of 3 minute 

 hairs, quite like on the sides of the genital aperture. 



Mandibles (Fig. 33) longer than those of /W%^^^^/«^^ Dug. Their 

 chelae (Fig. 34) short, strong; upper jaw with one incisor and 

 one dogtooth, both minute and blunt, and a deep incision behind 

 the do-toolh. Lower jaw with broad very blunt dogtooth. 



Mal^llae. On a square base are attached the median underhp 

 (Fig 35) the two outer malae, and the palps. Both underhp and 

 malae are distally denticulate. I must confess that my drawing 

 is partly a schematic one, for I could not well discern what I 

 saw Palps (Fig. 33) quinquearticulate; femur as long as the 

 following joints together. Tarsus not appendiculate on tibia, but 

 terminal and slightly longer than genu and tibia together. In fig 

 36 I drew the distal end of the palpal tarsus, with its 3 curved 

 and 2 lanceolate hairs. 



Legs (Fig. 32 and 37). As far as 1 could observe the lengths 

 of the joints increased towards the tarsus, which is slender. In 

 fio- 37 I have delineated an ambulacrum. On a minute praetarsus 

 there are two rather strong claws, and a n.edian claw-like and 

 hairy organ, consequently something between a claw and a pul- 

 vdlum. 



