Annals of the Transvaal Museum. 
193- 
Posterior spinners. — Apical segment apparently a trifle shorter than 
the middle segment. 
Posterior sternal sigilla pear-shaped, above Id diameters apart, but 
only half a diameter distant from the sternal margin. 
Colour. — Carapace and chelicerae dull reddish-brown : legs and palps 
pale-brown : abdomen above pale-purple with a paler mesial stripe. 
Total length 11 mm., length of carapace 4 -25. 
This very distinct species is perhaps identical with Ancylotrypa 
bicornuta Strand, a species quite insufficiently described and somewhat 
indefinitely located “ Kap der guten Hoflnung 55 (Jahrb. Nassau. Verein 
Naturk., Wiesbaden No. 35, 1906). 
Female. 
The female of this species, collected in the same locality (14th June, 
1915), by Messrs. Van Dam and Roberts, seems to be much like pretoriae ,_ 
but very much smaller. 
The more important characters are as follows : — 
Coxa III without a conspicuous tuft of stiff hairs on its post-ventral, 
margin : posterior sternal sigilla about a diameter distant from the sternal 
margin and about 1-| diameters apart or more : chelicerae with 8 teeth 
in the inner row : maxillae with 1 or 2 small denticles at the anterobasaL 
angle inferiorly, or none at all : there is rather a strong development of 
setae on the sternum, those anteriorly especially being almost spiniform : 
posterior spinners with the apical segment about as. long as the middle 
segment : fourth tarsal claws with several teeth in each row : abdomen 
subcylindrical, but not much elongated. 
Total length 15 -5, length of carapace 4 *4. 
Two adult males and a series of females were taken by Mr. Gr. van Dam 
at Wonderboom Poort, Magaliesberg (2nd March, 1916). The males agree 
with the type except as follows :— 
Chelicerae with 8 or 9 teeth, in which latter case one of the teeth near 
the base of the series is very small : tibia I with 8 spines in 2 rows inferiorly,. 
excluding those at the apex and at the sides : patella III with 2 or 3 spines 
on the dorsal surface. Colour of carapace pale reddish-brown or dull 
purplish-brown. 
The female is not easily distinguished from the young of pretoriae. 
It is, however, more deeply pigmented, the abdomen being dark-purplish 
above, and the margins of the carapace posteriorly and laterally are: 
purplish. 
The structural characters are as follows — 
Coxa III without a definite patch of coarse setae on the post-ventral 
border : maxillae with one or several denticles at the anterobasal corner : 
chelicerae with 7-9 teeth : posterior sternal sigilla large, about a diameter 
or a trifle more apart and about \ a diameter distant from the sternal 
margin : metatarsus I and II with 2 spines inferiorly apart from those at 
the apex : terminal segment of posterior spinners a trifle shorter than the 
middle segment, or subequal thereto : sternum and ventral surfaces of 
coxae with numerous scattered, long and stiff,, black setae. 
