in the British Museum. 101 



Indian specimens belong to the same species. The characters 

 in wliich the Hawaii specimen differs seem to l)e the fol- 

 lowing : — The femur has a distinct stalk and is not so broad 

 as the tibia ; the hand is distinctly broader than the tibia 

 and longer than the fingers; the galea is not simple. 



Chelifer australiensis, sp. n. (PI. VI. figs. 2 a-y.) 



Cephalothorax. — The eyes or ocular spots are missing. 

 The ceplialothorax, which is as broad behind as it is long, 

 becomes gradually narrow^ in front ; the sides are straight or 

 almost so, passing gradually into the front margin through a 

 moderate convexity. Two dark rather distinct grooves or 

 lines are present ; the first is nearl}'^ straight, while the 

 second is moderately curved forwards in the middle ; both 

 grooves are, as usual, widened out laterally, showing that they 

 represent the iuterarticular membrane between the convex 

 anterior and posterior margins of the adjacent somites. The 

 skin is minutely granular and provided with moderately 

 short clavate hairs, of which the most prominent are set in 

 transverse rows along the front margin of the head and the 

 hindmost margins of the two tergites. 



Abdomen. — The abdomen, which is almost as broad as 

 long, is broadest just behind the middle. The sclerites of 

 the tergites are of almost equal breadth, but the first three 

 are, as usual, the shortest; the hinder margin of each 

 sclerite covers the front margin of the following. There 

 seem to be traces of lateral projections or keels on the tergites. 

 Tiie sclerites, with the exception of the eleventh, are divided 

 by a longitudinal line. Their granulation is better marked 

 than that of the cephalothorax. Aboiit thirty rather short 

 but distinctly clavate hairs are placed along the hinder margin 

 of the sclerites ; besides, a single hair is placed laterally in 

 front of the row on all the tergites with the exception of the 

 first three ; the last ones have, in addition, a median pair in 

 front of the row. The hairs of the eleventh tergite are more 

 irregularly arranged, and there seem to be no long, slender, 

 pointed " tactile " hairs. 



The lateral membranes possess densely placed undulated 

 ridges. The fourth to the tenth sternites are, like the tergites, 

 longitudinally divided ; there is an increase in their length 

 as well as in breadth from before backwards ; the fourth 

 is only half as broad and two thirds as long as the tenth 

 sternite. The sclerites bear hairs along their hinder margins, 

 which are less distinctly clavate, especially those of the front 

 .sternites, where they arc almost simple. 



