470 Mr. S. Hirst on new Scorpio}is. 



Colour. — Mucli darker than U. s/n'natus and U. hoplurus, 

 the body being walnut-brown. Chela a deep chocolate- 

 brown and considerably darker than the body (with the 

 exception sometimes of the frontal lobes of the carapace). 

 Legs ochraceous, the terminal segments paler than the others. 



Material. — Two adult males and two young specimens 

 from Hermannsburg, Central Australia ; they were collected 

 by Mr. H. J. Hillier. 



Urodacus hoplurus, Poc. 

 Urodacus hoplurus, Pocock, Ann. & Mag. Nat. Hist. (7) p. 64 (1898). 



Subsp. carinatus, nov. 



Frontal lobes granular and the terminal tooth of the supe- 

 rior keel of the caudal segments very similar in shape and 

 directed upwards in a similar manner to that of the typical 

 form of the species. This new subspecies, indeed, apparently 

 only differs from the typical form in the much greater strength 

 of the superior keel of the caudal segments (which is com- 

 posed of quite large and distinct granules instead of weak 

 and indistinct ones) and in the less inflated and slightly 

 narrower hand. I think that it is very probable that the 

 difference in the form of the hand is due to the immaturity 

 of the specimen. 



Chela. — Under surface of hand with a row of 11 pores, 

 which ends in a group of 5 pores at the base of the finger. 

 Lower surface of tibia with a row of 11-13 pores. 



Pectines with 20-21 teeth. 



Measurements in mm. — Total length 76"5; length of cara- 

 pace 9, of fifth segment of tail 10*5, of hand-back 6*25; 

 width of iiand 5*25. 



Material. — A single example, of the male sex, captured 

 near Hermannsburg, Central Australia, by Mr. H.J. Hillier. 



ChcBrilus rohinsoni, sp. n. 



Apparently the only difference of importance by which 

 this new species can be distinguished from C. variegatuSj 

 E. Sim., is the number of granular series on the edge of the 

 movable finger, which is 11 instead of 13-14. 



As there is not a male example of the typical form of 

 C. variegatus in the British Museum collection, I am obliged 

 to compare the new species with males of the subspecies 

 nigricolor, Poc, Besides the difference in the number of the 

 rows of granules on the finger, it differs froai the male of 



