Species of Opisthophthalimts. 149 



(f) 1 ad. 3 from the Mamre Mission Station, Malmesbury Divi- 

 sion : No. of pect. teeth 12 ; length of carapace 10 mm. ; external 

 lobe of fourth tarsus with 3 spines ; spiracles narrow with parallel 

 edges ; coloration and sterna as in the Cape Town specimens. 



(d] 5 $ (2 ad.) from the village of Malmesbury (F. Purccll). No. 

 of pect. teeth 10-13 ; length of carapace in ad. $ 12^-12f mm. ; 

 external lobe of fourth tarsus with 3 spines ; penultimate segment of 

 the sterna quite smooth; coloration as in the Cape Town specimens ; 

 spiracles narrow with parallel edges or wider in the middle than at 

 the ends. 



(e) 1 ad. 5 from the Papagaai Berg at the town of Stellenbosch 

 (F. Pi creel 1) : No. of pect. teeth 11-12 ; length of carapace lOf mm. ; 

 external lobe of fourth tarsus with 3-4 spines; sterna and colora- 

 tion as in the specimens from Cape Town ; spiracles somewhat 

 wider in the middle than at the ends. 



B. Sub-specific Form : 0. capensis fuscipcs, Pure. 



Scorpio afer, Wulfen non Linn., in : Xav. Wulfen, Descriptiones 

 Quorundam Capensium Insectorum. Erlangae ; p. 39, fig. 21, 1786; 

 adult 3 . 



Opisthophthalmus fuscipcs, Purcell, Ann. South African Museum, 

 vol. i., p. 20, 1898, 3 and ?. 



Characters. Legs dark reddish brown on anterior (outer) surface, 

 ochraceous on inner surface. Terminal tooth of superior caudal 

 crests generally not at all enlarged, sometimes enlarged but rarely 

 spiniform ; spiracles always wider, generally very much wider in 

 the middle than at the ends ; No. of pect. teeth 9-10 (rarely 7-12) 

 in the $ , 9-13 in the 3 ; external lobe of fourth tarsus always 

 3-spined ; whole posterior surface of brachium very uneven 



Distribution. Paarl and south-western part of Tulbagh Division. 



The existence of an old description of a Cape Opisthophthalmus 

 by Wulfen was recently pointed out to me by Mr. E. M. Light- 

 foot. This appears to be the first description of a species of the 

 genus, although the author wrongly identified his specimen with 

 Scorpio afcr of Linnaeus. Wulfen's description may be summarised 

 as follows : Body rufo-piceus, the carapace blackened, with piceo- 

 rufus interocular area, the legs and cauda piceo-rufus, the mandibles 

 rufo-piceus. Hands convex above, with 5 elevated, darker, tuber- 

 cular crests and pilose at the margins. Cauda with 8 granular 

 crests. The under surface of cauda and of last abdominal segment 

 and the hands tuberculate. Pectines with 12 teeth. From this 

 description and the figure Wulfen's scorpion may be identified with- 

 out difficulty as the adult male of fuscipcs. 



