4GG Mr. S. Hirst on new Scorjj'wns. 



Pect'mes 20-21 in number. 



Measurements in mm. — Total lengtli 31 ; length of cara- 

 pace 3*75, of first segment of tail 2, of fifth segment 3*75; 

 widtli of first segment 2*5, of fiftli 2*8. 



Colour fawn except for the vesicle, which is a rather deep 

 brown and is much darker than the rest of the body; fingers 

 of hand pale yellow, the hand itself being fawn-coloured. 



Material. — A single male example from Alexandria, 

 Northern Territory of Australia ; collected by the late Mr. W. 

 Stalker, and presented to the Museum by Sir William Ingram, 

 Bart., and Sir John Forest. 



liemarks. — In having the last segment of its tail keel-less 

 and punctured this new scorpion resembles the species of the 

 genus Isometroides (which are restricted in distribution to 

 Australia), but differs from them in having a strong tooth 

 under the aculeus, as in Lychas. The posterior median keel 

 of the carapace is well developed, instead of being absent or 

 indistinct as is the case in all the species of Lychas that I 

 have been able to examine. For these reasons I am placing 

 this new form in a new subgenus — Ilemilychas. 



Lychas ochraceus, sp. n. 



Resembling L. i->e(]Jeri^ Pure, in having two enlarged 

 granules on the outer side of the enlarged basal granule of 

 the median scries (so that there is a row of three granules), 

 also in the presence of three keels on the tergites and in the 

 carination of the tail &c. 



I have carefully compared this new scorpion with Dr. Pur- 

 cell's detailed description of L. peyleri, and can only find the 

 following differences : — 



Colour of the new species apparently much lighter, both 

 trunk and tail being tawny ochraceous and without any very- 

 distinct markings ; a pale, rather indistinct, central stripe 

 seems to run the length of the trunk, however. Chela 

 yellowish, the hand being clear yellow, but the fingers tawny. 



Anterior sternites smooth and shiny, but sternites 3-5 are 

 finely granular throughout (the third and fourth being 

 distinctly granular in the middle) ; outer keels of fifth sternite 

 rudimentary ; both the inner and the outer keels are finely 

 granular, as is the case in L. pegleri. 



Pectiual teeth 10 in number; as in L. peyleri, the basal 

 one is very greatly enlarged. 



Measiireiueiits in mm. — Total length o2'5 ; length of cara- 

 pace 3'75. 



Material. — A female specimen captured at Bethulie, in the 

 Orange liiver Colony, by Miss Lettic Le})j)an. 



