462 Mr. S. Hirst on new Scorpions. 



length 82 ; zygomatic breadth 55 ; nasals 25 ; upper molar 

 series oom 



Hah. jebel Fazogli, Blue Nile. Alt. 3500 feet. 



Type. Old male (Stage VIII.). Collected by Mr. A. L. 

 Butler oil the 4th May, 1911. 



The British Museum possessers a second specimen from 

 Gebel Ain on the White Nile. The only other, geogra- 

 phically neighbouring, species with a bhTck dorsal mark is 

 scioana, but that species is at once distinguishable from 

 hutleri by its greater size, long soft fur, conspicuous dorsal 

 mark, and buff belly. 



(33) Procavia rujiceps, H. & E. 

 ($ (juv.). Port Sudan. 



LVIII. — Descriptions of new Scorpions. By S. IIlRST. 

 (Published by permission of tlie Trustees of the British Museum.) 



Genus Neobuthus, nov. 



Carapace without distinct keels (with the exception of the 

 ill-defined pair leading forwards from tlie ocular tubercle). 

 Posterior grooves of carapace very similar to tliose of the 

 genus Butheolus, Sim. Genital operculum with its two 

 valves similar in shape to and almost as large as those of 

 Nanohuthus, Poc. Posterior tergites with three keels, the 

 lateral ones being weak. Immovable finger of chelicera with 

 a single tooth on the lower edge. Chela stout, especially the 

 brachium ; the rows of granules of the movable finger are 

 weak, and the basal row comes to an end at a short distance 

 from the point of articulation of the finger. 



Neobuthus herherensis, sp. n. 



Carapace finely granular throughout, the granulation being 

 slightly coarser at the posterior margin on each side of the 

 groove. A pair of weak and indistinct keels runs forward 

 from the ocular tubercle. Median eyes widely separate as in 

 JSanohuthus andersoni, Poc. Grooves of the middle of the 

 posterior margin deeper than in N. andersoni. 



Tergites with the granulation fairly strong at the sides, but 

 rather tine in the middle, and very fine (almost invisible) 



