162 
Ahhals of the Tkansvaal Museum. 
prominent ; anus at posterior third of length of body, four spines on eaclr 
valve, three on circumference and one near opening anal groove Y 
shape ; no genital pore | genital grooves beginning opposite coxae III r 
diverging and extending to penultimate festoonal grooves ; stigmatic plates 
slightly elongate, transversely, very far can dad of coxae 1 Y ; apparently a 
pair of stigmatic openings opposite first inter-coxal space, near lateral 
margin. Rostrum (XVI, h, i) dorsal base narrow, twice as wide as long ; 
posterior points not prominent ; article I of palpi concealed ; article II 
wider than long, projecting sharply laterally backward, projecting tooth 
on dorsal surface blunt and wide, on ventral side sharper and longer ; 
article III conicle and pointed at tips ; article IY papilliform, in a pit on 
the ventral side of article III ; hypostome spatulate, with two rows of 
teeth on each half ; mandibles (XVI, A;), with inner apophysis 1 miniate, 
outer apophysis with two large teeth surmounted by two small teeth on a 
separate articulation. Legs slender 5 coxae wide ; rectangular, ; a very 
large blunt spine on posterior edge of coxae I, a very faint spine on coxae 
II, III, and IY ; tarsi elongate, no terminal spur. 
Larva (unengorged). — Body broadly ovate, widely rounded behind,, 
length 0.5 mm. ; width 0.3 mm ; colour light yellowish ; caudal festoons 
well marked. Dorsal shield wider than long, covers anterior third of body .; 
cervical grooves faint ; punctuations fine and evenly distributed ; no eyes. 
Rostrum with base narrow, wider than long ; posterior angles not pro- 
minent ; palpi as wide as long ; article I concealed, article II as in nymph ; 
articles III and IY as in nymph ; hypostome as in nymph ; anus near- 
posterior margin. Ventral surface with stigmatic openings as follows : — 
One pair behind coxae I, another behind coxae II, and a third behind coxae 
III. Legs stout ; coxae rectangular, contiguous short tootli on coxae I : 
tarsi slender, no terminal spur. 
Eggs of small size ; light greyish in uolour ; elliptical in outline,, 
surface smooth and shining ; about 0.5 mm. long by 0.3 nun wide. 
Hosts. — Dog, cat, ox, leopard, lion, genette, civette (Fells pardius), 
hedgehog (Erinaceus frontalis in Transvaal), jackal (Fells tig vis ), carnivora 
in general, and in Yew South Wales it has been taken on horses and cattle.. 
At Pretoria several nymphs were taken from the field rat, Avicanthus- 
pumillio, and one nymph from a tortoise. 
Habitat. — Egypt, Eastern Ethiopia, Abyssinia, Mahal, Ivorz Mountains,. 
Algeria, Sierra Leone, French Congo, Congo, Cameroon Mountains, Cape 
Colony, Orange Eiver Colony, Transvaal, Mozambique, German East Africa, 
Yew South Wales (probably a variety). 
This is the commonest tick found on the dog in South Africa. Louns- 
bury says it is confined to the grass veld districts and the coast veld of 
Cape' Colony, hut I have found it in nearly every part of the Transvaal, in 
'both grass veld, bush veld, and low veld. It attacks nearly all carnivora, 
but rarely any other group of mammals, being found only very rarely on 
cattle, even where most abundant. It transmits the distemper or 
malignant jaundice of dogs. 
