320 Mr. R. I. Pocock on some 



Palpi unspined ; tibia swollen, bristly below ; bulb sub- 

 globular, spines short, stout, lightly curved, pointed at apex ; 

 protarsus of first leg lightly sinuous at the base. 



Measurements in millimetres. — $ . Total length 18 ; cara- 

 pace 7, first leg 15, second leg 14, third leg 12, fourth leg 17'5. 



c£. Total length 12; carapace Q'5 } first leg 19, fourth 

 leg 23. 



Loc. Table Mountain (J. Hull). 



Genus Bessia, nov. 



Carapace smooth, fovea deep, procurved ; ocular area 

 transversely oblong, more than twice as wide as long, parallel- 

 sided ; lateral eyes narrowly separated ; eyes of anterior line 

 procurved, medians a little smaller, with their anterior edges 

 on a line with the centres of the laterals. 



Rastellum consisting of many long slender spines over- 

 hanging the base of the fang. 



Mandible armed below with a single row of about 15-16 

 teeth, a few smaller cusps at the posterior end of the row ; 

 fang long and slender. 



Labium twice as wide as long, armed, like the base of the 

 maxilla, with many close-set cusps ; maxillse lightly im- 

 pressed. 



Sternum with posterior sigilla of medium size, elongate, 

 about their own length from the margin of the sternum and 

 twice that distance apart. 



Legs not scopulate, anterior pairs weaker than posterior, 

 with protarsi much longer than tarsi ; first leg scarcely 

 spined ; protarsus of second with some strong spines below ; 

 third leg with a few spines on patella and tibia above, about 

 6 in two rows on protarsus; fourth with protarsus nume- 

 rously spined ; claws armed with 3-4 basal teeth. Posterior 

 spinner with apical segment small, much smaller than 

 second. 



According to Simon's tabulation of the genera of " Cyrtau- 

 cheniea?," this new genus seems allied to Amblyocarenum 

 and Aptostichus, especially to the latter. 



Bessia fossoria, sp. n. 



Colour of carapace and legs pale mahogany-red. 

 Measurements in millimetres. — Total length 12; carapace 6, 

 palpus 7, first leg 10, second leg 9, third leg 11, fourth leg 14. 

 Loc. Port Elizabeth (Dr. Broom). 



