186 Mr. E. T. Pocock on 



ocular tubercle large, bristly in front, the distance between 

 the eyes exceeding a diameter. 



Mandibles bristly, the upper fang moderately curved at the 

 apex, furnished with 11 teeth, 8 in a continuous line and 3 on 

 the inner side near the base ; of the 8 constituting: the long 

 series the 2 distal ones are large, subequal. and blunt, then 

 comes 1 small one, then 1 large, and these are followed by 4 

 medium-sized teeth, which form the outer row at the base of 

 the fang ; the lower movable fang is furnished with 2 large 

 widely separated teeth and a very small one between them. 

 The inner surface of the mandible convex, the stridulating- 

 ridges long and strong ; feathery hairs at the base of the 

 upper and lower digit. 



Rostrum horizontal, compressed, its upper edge straight; the 

 tips of its upper and lower lips on a level with each other. 



Palpi moderately robust, clothed with short hairs inter- 

 mixed with long setge, some of which on the lower surface of the 

 tibia are short and spiniform ; tibia stouter in the middle 

 than at the ends ; the tarsus a little narrowed at the base, 

 but immovably united to the tarsus. 



Legs. — First and fourth unspined ; tibia of second armed 

 above with 5 spines, of third with 3 ; femora of fourth a little 

 enlarged and compressed. 



Length, including mandible, 16 millim., of mandible 4, of 

 head 2*5 ; width of head 3. 



A single female example. 



CENTIPEDES (Chilopoda). 



Scolopendra valida, Lucas, subsp. deserticola^ Poc. 



Scolopendra valida, Lucas, subsp. deserticola, Poc. Journ. Linn. Soc. 

 XXV. p. 297 (1895). 



The discovery of a representative of Sc. valida on the con- 

 tinent of Africa is of great interest, the species being hitherto 

 known from the Canary Islands {valida^ typical form), 

 S. Arabia (subsp. deserticola) ^ the Persian Gulf (subsp. 

 persica)^ and Socotra (subsp. Balfouri). The conclusion that 

 the species once occupied the whole of the Mediterranean area 

 that lies between the most easterly and westerly points of its 

 present range can hardly be doubted ; but there is at present 

 no evidence that it exists in Africa between Egypt on the 

 east and Morocco on the west. 



