Annals of the Transvaal Museum 
253 
8 . Anterior margin of first tergite overlaps posterior margin of head-plate, 
the head-plate and first tergite seldom just meet each other. Process 
of pleura bifid or trifid (three-pointed) or unarmed. Head-plate 
usually with a pair of median sulci, and basal plates ... 9 
9. Process of pleura without spines. Femur of anal legs unarmed or nearly 
so ...... Colob opleurus Kraepelin 
Process of pleura bifid, seldom trifid; femur of anal legs armed 
Cormocephalus Newport 
10. Head-plate meets the first tergite in a transverse sulcus, it does not end 
freely. Tergites bisulcate from second somite 
Trachycormocephalus Kraepelin 
Head-plate ends freely, overlaps or just meets the first tergite. Tergites 
usually not bisulcate from the second tergite . . . . 11 
11 . Claws of anal legs without spurs. Head-plate, with posterior margin 
free, just meets the first tergite, scarcely or not at all overlapping it 
Arthrorhabdus Pocock 
Claws of anal legs always provided with spurs. Head-plate clearly over- 
laps the anterior margin of first tergite . . Scolopendra Linne 
Genus AS AN AD A Meinert. 
Asanada socotrana Pocock. (Figs. 13, 14.) 
Habitat : Serowe (Bechuanaland) ; Shoholle, near Gravelotte Railway 
Station (Tvl.) (G. van Dam). 
It is of interest to note that it is the first time this genus has been recovered 
in South Africa. One specimen from Serowe (Bechuanaland), is in possession 
of the Albany Museum; the other from Shoholle, near Gravelotte Railway 
Station (Tvl.), is in the possession of the Transvaal Museum, Pretoria. 
Fig. 13. Anal somite, pleurae and femur of anal legs (ventral) of Asanada socotrana. 
(From Revision dev S colop endri den, Kraep.) The pleurae almost covered 
by the anal sternite. 
Fig. 14. Head, 1st and 2nd somites (dorsal) of Asanada socotrana Meinert. (From 
Revision der Scolopendriden, Kraep.) 
