ACARI 573 



Tibia slightly narrower than genu, bent downwards near the 

 base, and widening slightly towards the anterior half, which 

 is of even width ; its hairs, especially the ventral ones, are lon- 

 ger and more slender than those of the proximal joint. Tarsus 

 ventrally, near the base, with a short fissure ; it is as wide as 

 the base of the tibia, of even width throiighoiit, and straight 

 for the greater jjart of its length, being only slightly bent down- 

 wards near the top ; it is plentifully provided with setiform, 

 tactile hairs, especially dorsally and distally, where 14 to 16 

 hairs are situated, varying in length from one third to one half 

 that of the tarsus ; between the dorsal hairs at the top of the 

 tarsus tiiere are 3 to 4 finger-shaped appendages (fig. 81 6). 



Ambulacres with two well developed claws which are, 

 however, smaller than those of the other legs ; (compare figs. 

 81 6 and 82 b) the caruncle is greatly reduced and appears 

 as a low, hyalin collar round the base of the claws. 



Legs II (fig. 82«) are larger than the other legs, nearly to 

 the extent exhibited in Parasiius s. str. Thus the width of the 

 genu II to genu I is as 20 : 13 ; the width of trochanter II 

 to trochanter I as 27 : 19. 



Trochanter wdth projecting ventral edge, slightly wider at 

 the base than it is long ; with one hair in the middle, ventrally. 

 Fémur with distinctly demarcated, ^narrow basifemur, of even 

 width throughout, except at the base ; dorsally, it bears in the 

 anterior half two stout bristles, set on low tubercles, and one 

 setiform hair, ventrally; at the backof the calcar femoralis, 

 one finely pointed, perpendicular hair, as long as the telofemur. 

 Calcar femoralis straight, half as long as the telofemur, 

 constricted at the base, and bluntly pointed at the top ; both 

 edges convex, the anterior one more so, and flattened to a 

 thinedge. Processusaxillaris a straight, short bristle, nearly 

 half as long as the calcar, and inserted on a tubercle, half- 

 way between the calcar and the anterior margin of the joint. 

 Genu with 3 dorsal and two sub-dorsal bristles on low tubercles ; 

 processusgenualis articulated to the genu, which means that 



