420 Ann a In of the Houth African Mnseinu. 



SOLPUGA VINCTA, C. L. Koch. 



(Fig. 23). 



C. L. Koch, Arch. f. Naturg. viii., Bd. i., p. 352, 1842 ; Die Arachn. 



xv., p. 74, fig. 1468, $ , 1848. Non Simon, Ann. S. Ent. Fr. 



(5) ix., p. 110, pi. 3, fig. 6, 1879. 



Flayellnm. Basal enlargement high, rounded, the upper edge 

 produced upwards into a high, sharp, vertical keel along its whole 

 length. Procurrent portion very short, the anterior bend remote 

 from the apex of fang and situated behind the level of the second 

 tooth. Kecurrent portion straight and rather erect, inclined at an 

 angle of 60 or more to the horizontal :|: and very short, being about 

 equal in length to the terminal toothless portion of the lower jaw ; 

 in form spindle-shaped when seen from the front, increasing in width 

 from the bend to the middle and tapering thence to a fine point ; 

 the transverse section through the middle T-shaped, the long bar of 

 the T representing the section of the main blade, which is strongly 

 flattened from before and behind (or above and below), while the 

 short bar represents that of the median side ; the anterior (upper) 

 side, therefore, widely sulcate and facing slightly inwards; the three 

 free edges of the distal half of the recurrent portion deeply and finely 

 serrato-lacerated. Upper jaw of mandibles in $ with the first two 

 teeth large and strongly hooked at apex, followed by a long, concave, 

 toothless interval, after which a small tooth confluent with a large 

 one follows, terminating the single series. Terminal fang moderate, 

 inclining slightly downwards for about one-third of its length from 

 the base, then slightly upturned, the apex suddenly and strongly 

 curved down\vards but not outwards ; the upper surface sulcate at 

 base, its inner edge flanked by a thin, upright, blade-like keel, which 

 is situated above the first tooth ; this keel finely serrated in its 

 anterior half, provided with a sharp tooth directed forwards in the 

 middle, but entire and higher in the posterior half. No tooth on the 

 inner side of the fang. Loivcr jaw with two large curved teeth and 

 a smaller one between them, nearer the hind tooth ; upper surface 

 not sulcate, its outer edge rounded off in the toothed region. 



? and juv. With one small tooth between the second and third 

 large tooth in the upper jaw, and between the two large ones in the 

 lower jaw. 



Colour. Head-plate and upper surface of mandibles yellowish 

 brown in the male but generally much darker and ferruginous in 



* In spirit specimens ; but much more nearly horizontal when the specimen 

 is allowed to dry. 



