HOBMUIiUS. 79 



and not spined. Movable finger of chela with two parallel rows of 

 teeth. Genital operculum of female not narrowed and pointed 

 behind ; marked with median suture. 



Type, //. australasice (Fabr.). 



Distribution. India, Burma, and the whole of the Indo- and 

 Austro-Malayan area as far as Fiji. 



Synopsis of Indian Species. 



a. Upper and lower crests on posterior side of 



brachium granular; sterna thickly punc- 

 tured ; tail laterally granular H. australasice, p. 79. 



b. Lower crest on posterior side of brachiura 



quite smooth ; sterna not or scarcely punc- 

 tured ; sides of tail not granular H. nigripes, p. 80. 



65. Hornrarus australasise, Fabr. Syst. Ent. p. 399, 1775 (Scorpio) ; 

 C. L. Koch, Arachn. iv, p. 71, fig. 294, 1838 (Ischnurus) ; Thorett, 

 Atti Soc. Ital. xix, p. 251, 1876 ; Simon, J. A. S. B. Ivi, p. 113, 

 3887 (Liocheles); Kraep. Jb. Hamb. wiss. Anst. xi, p. 133. 1894: 

 id. Tterr., Scorp. etc. p. 154, 1899. 



Ischnurus complanatus, C. Koch, Arachn. iv, p. 73, fig. 295, 1838 

 Thorell, Ann. Mus. Genova, xxvi, p. 420, 1888. 



Colour of upper side of trunk, chelae, and of tail reddish or 

 greenish brown ; under side of trunk paler ; vesicle clear yellow 

 or yellowish red, paler than the dorsal surface of the abdomen. 

 Carapace and terga densely and finely punctured in , sometimes 

 granular laterally in 3 . Sterna finely punctured. Tail at most 

 only about two and a half times as long as the carapace, weakly 

 granular below, above, and at the sides ; dorsal keels practically 

 absent, but the extremities of the upper sides of segments 2-4 

 provided with a pointed upstanding tubercle; inferior crests of 

 3rd and 4th weakly granular, of 1st bearing posteriorly a pair of 

 sharp downwardly and backwardly directed tubercles, similar 

 tubercles on inferior median and lateral keels of 2nd ; inferior 

 lateral keels of the 5th denticulate; vesicle finely punctured and 

 pitted, like the lower side of the tail, with setiferous pores. 

 Chelce massive, granular and punctured above, punctured below ; 

 anterior side finely granular; the keels strong and coarsely granular; 

 base of the brachium in front elevated into a ridge bearing a pair 

 of larger denticles ; brachium shorter than carapace ; underhand 

 longer than carapace, not twice as long as the width of the hand ; 

 area below finger-keel coarsely granular; basal half of fingers 

 granular ; finger-keel and keel of underhand strong and coarsely 

 granular ; fingers short, about two-thirds the length of the under- 

 hand, shorter than carapace, not lobate in females and young 

 males, but strongly lobate in large males. Leys externally finely 

 granular, with under edge of femora and patellae serrate. Pec- 

 tinal teeth 5-8, mostly 6-7. 



Measurements in mm. of adult S . Total length 37, carapace 7, 

 tail 18, underhand 8, movable finger 6, width of hand 5. 



