A Survey of the Scorpion Fauna of South Africa. 
163 
Hadogenes taeniurus Thorell, Actes Soc. Ital. Sci. Nat. xix, p. 254, 1877. 
This species was founded on an adult female example collected by C. J. 
Andersson in ''Africa meridionalis " ; as Dr. Purcell has remarked, Andersson 
collected in Damaraland, and Prof. Kraepelin records the species from 
Ababis in Hereroland (12). According to the latter author, it differs from 
troglodytes in the smooth vesicle and the fewer pectinal teeth. In the shape 
of the first caudal segment it seems to resemble H. granulatus, as observed 
by Purcell. The characters given by Thorell are as follows : Carapace very 
lightly emarginate anteriorly, not equalling in length the first and second 
caudal segments together ; third caudal segment 2h times longer than wide 
posteriorly ; pectinal teeth 15 ; total length 123*5 mm. ; length of tail 61 ; 
length of carapace 16*75 ; first caudal segment 7*5 long, 3*75 wide and 
3 high ; fifth caudal segment 12*25 long, 2 wide in middle, 3 high ; vesicle 
8'75 long and 3*25 high. The male of this species has not been described. 
Hadogenes phyllodes Thorell, Actes Soc. Ital. Sci. Nat. xix, p. 257, 1877. 
This species, described by Thorell as a variety of taeniurus, seems to have 
been founded on a subadult or adult female, and unfortunately is without 
locality data. According to the description it differs from taeniurus in the 
form of the tail, and the upper margin of the vesicle in side view is concave 
in phyllodes but very lightly convex in taeniurus. Third caudal segment 
nearly 3^ times longer than wide posteriorly. Pectinal teeth 14. Total 
length 113, length of carapace 14^, of tail 63 ; first caudal segment 9 6 long, 
2-5 wide, 3 high ; second caudal segment 11*5 long, 2*33 wide, 3-5 high ; third 
caudal segment 11*5 long, 2*33 wide, 3*33 high; fourth caudal segment 13 
long, 2 wide, 2*5 high ; fifth caudal segment 12*5 long, 2*5 high ; vesicle 
8 long, 2*5 wide, 3 high. 
Dr. Purcell believes that the form I have described under the name of 
H. gracilis var. namaquensis is the same as phyllodes Thor. 
H. TiTYEUs E. Simon, Ann. Soc. Ent. France, 6, vii, p. 383, 1887. 
Distribution : Type either from Namaland or from Mossamedes, according 
to Prof. Kraepelin (11), who records the species from Kubub in the south of 
Great Namaland and from Kaiser Wilhelm-Berg, near Windhuk. Simon's 
description of the type indicates an adult specimen, though only 37 mm. in 
total length ; he describes it as a male, but records only 9-10 pectinal 
teeth ! This would seem to le a primitive species, very like an Opistha- 
canthus. 
H. TEicHiuRus Gervais, Arch. Mus. Paris, v, 3, 1843. 
The type of this species is a female example recorded from " la Cafrerie " 
(Delalande) ; the description was meagre and the figure accompanying it 
probably diagrammatic. Although it is impossible to say with certainty 
what some important characteristics of the typical form may be, even if a 
