48 ME. U. R. HOGG ON 



than those on the other joints. They are not divided lougi- 

 tudinally as in Misumsna. The inner of the pair of tarsal claws 

 has about three rather long pectinations on the shaft curving with 

 the curved point of the claw. 



The ixdpi are short and fine, with hair and bristles as on the 

 legs, and spines on the tibial joint. 



The measurements (in millimetres) of the largest are as 

 follows : — 



Long. Broad. 



Cephalothorax... 3| 



Abdomen 5 



Mandible \\ 



Coxa. Tr 

 Legs 1 . 1 



2. 1 



3. 1 



4. 1 

 Palpi \ 



This species conforms to M. Simon's genus Petricus from 

 South America, and is closer to his P. niveus than to any of 

 Mr. TuUgren's species. It differs, however, from the former in 

 its front row of eyes being very clearly recurved instead of slightly ; 

 the median are 3 diameters apart in.stead of one, and nearer to 

 the lateral than to one another instead of equidistant ; the 

 lateral eyes of the front and rear rows about 4 diameters apart 

 instead of 1| ; the ai'ea of the median quadi-ilateral equally bi-oad 

 in front and rear, instead of much broader in front. The front 

 pair of legs are longer and the others shorter in proportion to tiie 

 cephalothorax than in P, niveus. 



There are nine females from various districts, apparently the 

 same but differins: in size of adults and brightness of colour. 



OPILIONES. 



Family Gonyleptoid^. 

 Genus Sadocus Sor. 

 Sadocus fallentini, sp, n. (PL II. figs, 7-7o.) 



Carapace yellow-brown mottled with black-brown anteriorly, 

 nearly all dark bi'own at posterior end ; eye-tubercle yellow in 

 middle, black-brown at each side. 



Trochanters yellow ; other joints yellow mottled with black- 

 brown ; anterior ends of tarsi of rear two pairs yellow with yellow 



