Contributions to the South African Arachnid Fauna. 457 



Measurements. Carapace 5 - 5 mm. long arid 3'75 mm. t wicle (i. e, 

 ratio 1'47 : 1) ; sternum 3 mm. long. 



Total length 14 mm. 



Thejuv. specimen is lighter and redder save for the abdomen, which 

 is slightly darker. 



DRESSERUS SCHREINERI, n. sp. (Plate XXIX, fig. 7 A-B). 



Specimens. Two <$ ^ and 4 ? $ (No. 9464, Types) from Hanover. 

 (S. C. Cronwright Schreiner, 10/01). 



^ . Colour. Seen in spirits, carapace is very dark red ; abdomen 

 pale testaceous with slight infuscate mottling, and with 4-5 light 

 arrow-head markings posterior to sigilla. Legs brown, uuicolorous, 

 and clothed with dark hairs ; tarsi slightly darker. Sternum and 

 coxae the same colour as the legs anteriorly, but slightly lighter pos- 

 teriorly. Labium and coxae of pedipalps darker brown and white 

 tipped. When dry, thoracic portion is seen to be covered with white 

 appressed hairs ; a stiff brush of olive- black hairs rises from posterior 

 slope above fovea, and foveal region is clothed with dull white hairs. 

 Abdomen is clothed with short, and a few long, olivaceous brown 

 hairs, and tufts of white ones ; dorsal sigilla are ringed with white 

 hairs. Legs are clothed with olive-brown hairs having a whitish 

 sheen. Chelicera are clothed with appressed dark hairs. 



Carapace. Surface reticulated. Length equal to tibia, metatarsus 

 aiid tarsus, and to patella, tibia, and -t- metatarsus of 1st leg; width 

 equal to patella, tibia and \-^ metatarsus, and equal to tibia and 

 metatarsus of 1st leg ; also stretches from fovea to nearly the length of 

 the ocular tubercle in front of anterior margin of carapace. Cephalic 

 portion broader than long, slightly narrower anteriorly, flat on upper 

 surface and raised abruptly above thoracic portion ; latter slightly 

 arched posterior to fovea (fig. 7s), and foveal region considerably 

 depressed. Ocular projections not so prominent as in D. kannemcyeri,etc. 



Eyes. Posterior medians 2 diameters apart, and about 2 diameters 

 from the anterior laterals. Anterior medians with their centres 

 considerably above a line joining lower margins of posterior medians, 

 the latter being about 3 times the size of the anterior medians. 

 Lateral ocular area narrower anteriorly and 3 times as wide as long 

 posteriorly. 



Abdomen. With large, harder and darker area above genital area ; 

 plates and sigilla inconspicuous (cf. D. kannemeyeri). 



Chelicera. Much as in D. kannemeyeri. 



Sternum. Twice as long as wide. 



Legs. Metatarsus I straight and spineless ; metatarsi II and III 



