CHELIFEKIDJi: AND GARYPID.E IN THE BRITISH MUSEUM. 53 



Remarks. — This species may easily be distinguished from all other Australian 

 forms by its exceedingly long and slender chelae, which ventrally are adorned 

 with a number o£ " spots " in the male. 



2. Chelifer Keyserlingi, sp. n. (Plate 8. figs. 3-5.) 



$ . Ocular spots obsolete. Cephalothorax somewhat wider than long, without 

 transverse grooves and distinctly granular. The depressed, not very 

 slender abdomen has almost smooth sclerites and has sixteen short 

 slightly clavate hairs along hindmost margin of the tergites in addition 

 to four (?) in front. The palps more or less distinctly granular, with 

 rather short, slightly clavate hairs on the anterior surface of femur. The 

 trochanter has anterior outline strongly convex and is posteriorly some- 

 what bigibbose ; femur, which is 2-2 as long as wide, is distinctly 

 attenuated and posteriorly rather abruptly convex ; the tibia, which is 

 2'1 as long as v»'ide, is anteriorly moderately convex, and posteriorly 

 beyond the deep basal incision at first almost straight and then slightly 

 convex. Chela, which is 3*4 as long as wide, is 1*2 narrower than 

 trochanter is long ; hand, which is 1-2 as long as and 1"2 wider than 

 tibia, is 1-2 wider than deep and 1"6 as long as the fingers, of which the 

 movable is distinctly the longer. Tibia of the first pair of legs 1-2 as 

 long as the tarsus, which is 3"4 as long as deep ; femur IV. is 2'4 as long- 

 as deep and a trifle lower than the tarsus is long. 



Ceplialotlwrax. — Ocular spots obsolete or even wanting. The cephalothorax, 

 which is somewhat wider behind than it is long and distinctly narrowing 

 towards the front, shows no trace of transverse stripes. The integument is 

 distinctly granular all over and has short, slightly clavate hairs. 



Abdomen. — The depressed, not very slender abdomen has all the tergites 

 except the last one indistinctly divided and almost smooth sclerites, but is 

 laterally striated and even indistinctly granular ; along hindmost margin of 

 the tergites at least sixteen rather short and slightly clavate hairs are found, 

 in addition to four (?) in front. 



Antenna;. — The rather short slender galea, which extends a trifle beyond 

 the terminal hair, has about six short terminal teeth. The fiagellum consists 

 of three hairs, of which the anterior is marginally serrated. 



Palps (PI. 8. figs. 3-5). — The maxillce are smooth in the middle but 

 granular laterally. The palps are distinctly granular in front, less distinctly 

 so behind, and dorsally, but especially ventrally, indistinctly granular or almost 

 smooth. The short hairs are slightly clavate or obtuse. The trochanter, 

 which is 1*5 as long as wide, is anteriorly strongly convex and posteriorly 

 produced into a low rounded protuberance ; the dorsal protuberance is deep 

 and rounded, almost semicircular, when seen from in front ; the whole 

 posterior surface of the femur appears somewhat bigibbose. The femur^ 



