140 
Psyche 
[December 
description of his A cams elephantinus upon A. crenatum: 
“A. orbicularis depressus: macula baseos ovata. Habitat 
in India. Magnitudo seminis Lupini albi, depressus, lividus, 
margine crasso, subtus utrinque 3 sulcis. Macula baseos 
nigra, ovata, trifida.” No host is mentioned and the name 
refers, not to the supposed host, as Houttuyn surmised, 
but to the unusual size (“elephantine”) , this being one of 
the largest ticks known to Linnaeus. In answer to an in- 
quiry concerning this tick, Professor Ivar Arwidsson writes 
me that the type is not in Linnaeus' collection at the 
Zoological Museum of the University of Uppsala. Perhaps 
it is kept at the Linnaean Society of London, a point which 
I have not yet been able to investigate. 
Amblyomma infestum infestum C. L. Koch 
Amblyomma infestum C. L. Koch, 1844, Arch. f. Natur- 
gesch., X, pt. 1, p. 226 ($ $ ; no host; Bintang Island 
near Singapore) ; 1847, Uebersicht des Arachnidensys- 
tems, IV, p. 68, PI. XII, figs. 41-42 ( ? $ ). 
Amblyomma infestum infestum Schulze, 1932, Zeitschr. f. 
Parasitenk., IV, pt. 3, p. 468 ( ? $ ; after Koch’s types). 
Amblyomma testudinarium Robinson, 1926, Ticks, IV, Am- 
blyomma, pp. 17, 23 and 253 (in part; not the description 
and figures). 
Specimens Examined. — One male and three females (two 
partly engorged), off Rhinoceros sumatrensis Cuvier, shot 
on the Bernam River, Selangor, Federated Malay States 
(Major Rawley). 
A. infestum is a much smaller tick than A. crenatum, 
with the capitulum and legs of normal length. 
P. Schulze has recently claimed (1932, Zeitschr. f. Par- 
asitenk., IV, pt. 3, p. 468) that the tick described and fig- 
ured by Robinson (1926) as A. testudinarium, was not 
Koch’s species of that name, but a new tick, which he calls 
A. fallax P. Schulze. Robinson’s specimens came from 
Mouse-Deer ( Tragulus sp.) at Biserat, Jalor, Federated 
Malay States. P. Schulze also attempts to separate infes- 
tum Koch and testudinarium Koch as distinct races of a 
