1898.] BY ME. C. S. BETTON Ilf BRITISH EAST AEBICA. .511 



yellowish brown, and ornamented below with jet-black irregular 

 transverse stripes, which below become blended with the darker 

 tint of the inferior surface, area between spinners and epigastric 

 fold black ; anterior spinners black, posterior reddish ; coxae reddish 

 black ; sternum black, with a pale narrow median line. 



Carapace with cephalic region moderately elevated, only lightly 

 convex above ; carapace a little longer than upperside of tibia of 

 1st leg, its width just about equal to tibia of 2nd leg. Eyes of 

 anterior line very slightly procuryed, centres of medians on a level 

 with upper edge of laterals ; median quadrangle wider in front 

 than behind ; anterior medians about a diameter apart and a little 

 farther from the posterior medians ; posterior medians less than a 

 diameter apart. 



Mandibles with four anterior and three posterior teeth. Spines 

 on legs numerous and strong. 



Abdomen broader than long, voluminous, without shoulder-points, 

 its anterior border widely rounded, its posterior widely ovate. 

 Vulva consisting of a simple stout vertical rod, with its apex bent 

 at right angles to the basal portion. 



Measurements in millimetres. — Total length 16 ; length of carapace 

 6'5, of abdomen 10-5 ; width of abdomen 11*2 ; length of anterior 

 leg 25, of posterior leg 23. 



Loc. " 88 miles inland from Mombasa." A single female. 



Allied to A. nauticns, but much larger and with wider abdomen 

 and the distal end of the vulva bent at right angles instead of 

 nearly straight. 



Abaneus taeuewsis, sp. n. (Plate XLI. fig. 5, and Plate XLII. 

 fig. 1.) 



Colour. Carapace testaceous, infuscate laterally ; mandibles, 

 palpi, and maxillae testaceous ; sternum testaceous in the middle, 

 brown at the sides : legs testaceous ; femora of first three pairs 

 with a fuscous patch at the distal end, of 4th pair with a median 

 fuscous patch as well ; 3rd and 4th legs also infuscate at distal 

 end of patella and tibia and at the middle of protarsus and on 

 tarsus, these patches less evident on legs of 1st and 2nd pairs; 

 abdomen ochre-yellow above, speckled with minute red lines and 

 spots, a distinct folium consisting of a zigzag black line on each 

 side extending from the median sigilla to the apex ; area between 

 the four central sigilla divided by a narrow median black line, 

 branching at the sides ; anterior portion of abdomen with a sooty- 

 black patch on each side continuous with the lighter blackish-grey 

 tint of the lateral surface, lower surface oehraceo-fuscous, with a 

 pair of large yellow spots behind the middle line in front of the 

 spinners ; hairs mostly white ; spines on legs black at base, pale 

 distally ; hairs on sides of abdomen golden yellow or reddish. 



Carapace shorter than 1st tibia, its width less than 2nd 

 tibia, moderately elevated as in A. bettoni. Eyes of anterior line 

 slightly recurved or very nearly quite straight ; median quadrangle 

 narrowed in front, longer than wide, but the eyes composing it 



34* 



