442 Mr. R. I. Pocock on 



granular ; the carapacic portion of the dorsal scute with a 

 single tubercle on each side mid-way between the ocular 

 tubercle and the lateral margin, and two widely separated 

 papilliform tubercles or spines before tlie sulcus defining its 

 posterior limiting groove. The first segment of the abdo- 

 minal constituents of the scute marked with a pair of erect, 

 rounded, papilliform spines ; spines on the second and third 

 segments erect, subcylindrical, bluntly rounded at the apex, 

 basally tubercular, as long as the spiniform process of the 

 ocular tubercle. Spines on the fourth segment of the scute 

 papilliform, cylindrical, bluntly rounded, alternately larger 

 and smaller, one in the middle quite small, then on each side 

 come a larger, smaller, larger, smaller, and a small marginal. 

 First and second f?'ee terga similarly armed, but the spines 

 are longer, the longest at least twice as long as wide at the 

 base, the third with a pair of submedian tubercular papillse 

 and a marginal tubercle. 



Mandibles spined much as in A. rostrata. Palpi also as in 

 that species, but of the four spines on the dorsal side of the 

 femur the first and fourth are low and tubercular, and on the 

 lower side of tlie femur there are two subequal spines distad 

 of the strong basal spine. First leg not so strongly tuber- 

 culous, its protarsus distally excavated beneath. 



$ . — Xot differing appreciably from the male in structure, 

 except for the unmodified first protarsus and rather smaller 

 palpi. 



Measurements in millimetres. — ^ . Total length 6 ; width 4 ; 

 length of palpus 7*5, of first leg 11, second 21, third 15, 

 fourth 21. 



Loc. Madagascar : Ambohimitombo, a village in the forest 

 of the Tanala district ( C. I. Forsyth Major) . 



Acumontia Cowani, Poc. 

 Acumontia rostrata, subsp. Coivani, Poc. P. Z. S. 1902, ii. p. 407. 



Very nearly allied to A. echinata, but distinguishable by 

 the smallness of the spines, the two longest on the scute not 

 exceeding the height of the eye from the carapace and less 

 than the height from the eye to the apex of the ocular spine. 

 Spines on the posterior border of the scute and on the first, 

 second, and third free terga all low, tubercular, and not higher 

 than wide. Of the four spines on the upperside of the femur 

 of the palp, the first is fairly long, a little shorter than the 

 second, but longer than the fourth. 



Measurements apparently as in A. echinata. 



Loc. Betsileo {tiev. Deans Cowan). 



