South African Arachnida. 175 



Measurements of a ? . — Total length 30|, length of tail 17, length 

 •of cephalothorax 3, length and width of fourth caudal segnaent 2-9, 

 1-6. 



Locality. — Several ^ and 5 specimens from near Umtata, Cape 

 ■Colony, collected by Miss Pegler and kindly sent to us by the Eev. 

 Dr. P. Kolbe. 



These are the first specimens of the genus recorded from South 

 Africa. They differ apparently from all the other species of the 

 genus in having t^o, instead of only one, external flanking 

 teeth alongside of the enlarged basal tooth of each of the main 

 rows on the fingers. 



Gen. UEOPLECTES Ptrs. 

 Uroplectes carinatus (Poc.).''= 

 1890. Lepreus c, Pocock, P. Zool. Soc. London, Mar., 1900, pp. 

 129-130, pi. 14, figs. 3, 3a. 



1896, Uroplectes c, Pocock, Ann. Mag. N. H. (6), v. 17, p. 380. 

 Distribution. — The area inhabited by this species, as the list of 



* This and the three following species form a group of closely allied forms 

 with the following common characters : — Abdominal tergites 3-keeled, fingers 

 of pedipalps with 9 main rows of teeth, the enlarged basal tooth in the rows 

 flanked on each side by a single large tooth, the inner flanking tooth always 

 situated at the end of the next proximal row, vesicle with no tooth below aculeus, 

 all the inferior caudal keels well developed in segments 1-4, hand rounded, not 

 angular or flattened. The adults of these 4 species may be distinguished as 

 follows : — 



«. With a pair of minute stylets situated one on each side of the genital opening 

 behind just under the posterior inner angles of the halves of the operculum 

 when the latter is closed. Males. 



c'. Fourth caudal segment l|-2 times as long as wide . . U. carinatus (Poo.) 



b'. Fourth caudal segment 2^ times as long as wide . . . . U. alstoni, n. sp. 



c'. Fourth caudal segment 2| to nearly 2f times as long as wide 



U. karrooicus, n. sp. 

 h. Genital opening without stylets. Females, 



a^. Fourth caudal segment Ir^-lf times as long as wide ; hand distinctly 

 wider than tibia U. carinatus (Poc.) 



b'. Fourth caudal segment 1^-2 times as long as wide ; hand distinctly wider 

 than tibia U. alstoni, n. sp. 



c^. Fourth caudal segment from slightly more than twice to 2-1 times as long 

 as wide; hand slightly narrower than tibia . . . . U. karrooicus, n. sp. 



d-. Fourth caudal segment 2^- times as long as wide ; hand as wide as or very 

 slightly wider than tibia U schlechteri, n. sp. 



