62 MR. c. T. A. PEEL \SD OTHERS OX [.Jan. 23, 



r at one t-ime supposed this species to be tiie female of the 

 Abyssinian F. hdlicosus L. Koch, but judiriug by Kraepelin's recent 

 diagnosis of the latter species (Das Tierr., Scorpiones, p. 121, 

 1899), P. miUtaris certainly differs in having the superior caudal 

 keels denticulated, the hand finely punctulate above and below, 

 and the last abdominal sternite scarcely visibly crested. 



Synopsis of the Somali Species of Pandinus. 



a. Median eyes always some distance behind middle of cara- 



pace ; tarsi mo]'e numerously spined, the lobes with 3-4 



spines, total number on lower side of tarsi 9 behind, 



6 in front. 



a\ Tarsal lobes with 4 spines, a strong spine being on the 



tip of the lobe ; humerus of chela furnished below 



with two short rows of denticles meideims. 



b^. Tarsal lobe with 3 strong spines, the spine on the tip 

 smaller and usually filiform distally ; humerus of 

 chela smooth below. 

 a^. Ornamentation of hand consisting of conical 

 tubercles ; inner margin of hand distinctly tuber- 

 cular and denticulate from base of finger to carpal 

 articulation, width of hand greater than length of 



carapace; pectinal teeth 18-21 srnUhi. 



b^. Ornamentation of hand consisting of low rounded 

 or irregular shaped, often anastomosing tubercles ; 

 lobe of hand with smooth posterior edge ; length 

 of carapace exceeding width of hand ; pectinal teeth 

 15-18 phiilipsi. 



b. Median eyes in middle of carapace, rarely a little behind 



the middle; total number of spines on tarsi 5 behind, 



3 in front, 2 only being situated on each lobe, the tip of 



which is furnished with bristles. 



re^. Lower surface of all the caudal segments and the 



middle of at least the last abdominal sternite closely 



granular and not keeled. 



a*. Upper surface of hand from inner edge to crest 



of underhand uniformly covered with coarse 



granules which do not anastomose ; upper crest 



of brachium distinctly granular colei. 



h^. Upperside of hand coarsely granular only above 



crest of underhand, the rest of its upperside either 



almost smooth or ornamented with low rounded 



tubert4es which run into ridges ; upper crest 



of brachium quite smooth. 



«•'. Upperside of hand covered with ornamentation 



of low, more or less anastomosing tubercles ; 



its lower surface distinctly granular; hand 



larger, carapace equal to length of underhand 



+ one-third of movable digit, and only as 



long as the baud from the posterior edge of 



the lobe to the base of the immovable finger ; 



immovable finger not twice as long as its basal 



width peeli. 



h'\ Upperside of hand smooth, at most ornamented 

 with a network of low ridges, lower side very 

 sparsely granular ; hand smaller, carapace as 

 long as underhand + half the movable finger, 

 and as the hand measured from the posterior 

 edge of the lobe + half the immovable finger; 

 immovable finger twice as long as its basal width, liawkcri. 

 [60] 



