little-known Thelyphonidae and Solifugai. 299 



Genus Mastigoproctus, Poc. 

 Mastigoproctus liochirus^ sp. n. 



Colour. Upperside of trunk black ; chelse and legs deep 

 brown, much redder towards the distal extremities ; lower 

 side of abdomen reddish brown, black marginally and on the 

 eighth sternite. 



Upperside of trunlc sculptured with dense punctuation and 

 sparsely granular ; fore part of carapace smooth. 



Sterna smootii and shining, sparsely punctured ; the first 

 with the posterior border widely rounded, black in the middle, 

 with a shallow impression on each side of the median black 

 area, and a shallow impression near the middle of the plate. 



Chelce with coxa3 sparsely punctured ; trochanter armed 

 with 2 teeth below and 6 teeth above, the one on the angle 

 the longest, the outer of the two teeth on the anterior border 

 much smaller than the inner; femur and tibia granular 

 below ; upperside of all the segments very smooth and 

 shining, only sparsely punctured ; femur only minutely 

 toothed on inner side above ; tibia with a single tooth on inner 

 side near base of apophysis ; a))ophysis with one tooth on 

 posterior side at distal end ; hand shaped much like that of 

 female M. giganteus^ but thicker ; immovable finger thicker 

 than in that species. Movable fang of mandible without 

 basal angle or process on the outer side. 



Maxillary process of coxa armed above with a single row 

 of about 7 spiniform teeth. 



Tarsus of first leg with second and third segments sub- 

 equal J second and third legs without tibial spur, fourth with 

 tibial spur. 



Ommatoids long and elliptical, less than their long diameter 

 apart. 



Total length 37 millim. 



Loc. Guatemala {Sarg coll.). A single subadult male 

 example. 



At once recognizable from the rest of the species of the 

 genus Mastigoproctus, as diagnosed by Kraepelin, by the 

 presence of tibial spurs only on the fourth leg, the smoothness 

 of the chelge, &c. 



Order SOLlPUGiE. 



Genus Solpuga, Licht. 



Solpuga sagittaria, sp. n. (Figs. 5, 5 a.) 



^. — Co?ou?- of head, mandibles, and limbs a pale ochre- 

 yellow ; the femora and patellse of the posterior two pairs 



