South African Arachnida. 197 



[b) 1 ad. ^ , 2 ad. ? and a number of juv. from Colesberg (C. L. 

 Leipoldt). There can no longer be any doubt that 0. colesbergensis 

 Simon (Soc. ent. Fr. ser., 5, v. 10, p. 388, 1880) from the same locahty 

 is identical with austerus Karsch, as suggested by Kraepelin. The 

 species is evidently nearly related to karrooensis Pure. 



Opisthophthalmus caeinatus (Pet.). 

 Additional localities/'- — (a) 1 juv. <? from Beenbreek on the 

 Orange Eiver in north-west of Kenhart Div., Great Bushmanland 

 (M. ScJdechter) : Number of pectinal teeth 32. 



(b) 1 juv. ? from Kakamas on the Orange Eiver in north of 

 Kenhart Div. (M. Schlechter) : Number of pectinal teeth 16-17. 



(c) 1 ad. (^ from the neighbourhood of Upington on the Orange 

 Eiver in south of Gordonia, Bechuanaland : Number of pectinal teeth 

 30 ; length of cephalothorax 16f mm. ; colour as in the ? from Great 

 Bushmanland previously described ; under surface of abdominal and 

 anterior caudal segments almost smooth, only faintly transversely 

 striated in places ; length of hand-back exceeding width of hand. 



(d) 9 ? (3 ad.) and 7 a" (2 ad.) collected along the western side 

 of the Harts Eiver (between that river and the Kaap Plateau) in the 

 Barkly Div., Cape Colony (Garwood Alston) : Number of pectinal 

 teeth in ? 16-20, in ^ 24-28 ; length of cephalothorax in ad. J 

 13-14-3 mm., in ad. ^ 13-3 mm. ; hind margin of abdominal tergites 

 generally broadly ochraceous ; anterior surface of tibiae and of distal 

 part of femora of legs generally more or less strongly infuscated ; 

 under surface of abdominal and of anterior caudal segments as in the 

 (? from Upington (see c above) ; length of hand-back in ad. g' equal 



to the width of hand ; width of hand in largest 5 10-8, in g- 9-2, 

 length of hand-back in ? 9-6, in g 9*2, length of movable finger 

 in ? 14-5, in g 14-7. These specimens are smaller in size, lighter 

 in colour, and have much narrower hands than the specimens from 

 Bushmanland and Upington. 



Opisthophthalmus ater Pure. 



A 2 of this very rare scorpion was recently found by Dr. E. H. 

 Howard on a hillock about nine miles from Port Nolloth, Namaq. 

 Div. It differs from the <? in the following points : — 



* Penther (Ann. Naturh. Hofm. Wien, v. 15, p. 158) has recently recorded the 

 species from the Cango Valley near Oudtshoorn. This locality is very far south 

 of any place from which we have specimens. 



