INFESTING THE DIFFERENT RACES OF MAN. 575 
? Anterior lee—Thumb large; apical spine strong, as long as the thumb 
itself; penultimate joint moderate; claw a half longer, not toothed. 
California. (Mr W. Murray.) 
A very distinct form. 
South American Andean Indians.—Rich brown; body obovate; antennze 
more slender and slightly more elongate than in European. 
é Anterior lee—Thumb very long, bent like a quarter-bent thumb; apical 
spine robust ; penultimate joint long, straight, and almost as broad in front as 
at the base; the inner projection small, but well defined and distinct, nearly 
midway between the base and apex; claw shorter than penultimate joint, robust, 
abruptly thickened and enlarged at the base, so as to form a sort of head nearly 
of the same thickness until towards the tip—strongly toothed or serrated in the 
middle. 
Quito. (Prof. JAMESON.) 
This is the most peculiar species I have met with. The long thumb, and long, 
nearly cylindrical straight penultimate joint, are very peculiar; and it is the only 
species I have seen which has the claw shorter than the penultimate joint. 
South American Indians, Tierra del Fuego.—Dusky olive; obovate, 
$ Not seen. 
? Anterior leg robust—Thumb small ; apical spine comparatively very strong, 
and parallel almost to the point, more than half the length of the penultimate 
joint, which is moderate, not much narrower at the point than the base, and only 
half the length of the claw, which is rather narrow, not rapidly tapering, and 
without teeth. 
Tierra del Fuego (Mr Darwin, “ Voyage of the Beagle’), (Mr Denny.) 
Japanese.—Burnt Sienna brown; obovate. 
g Anterior leg—Thumb short and slender, subserrated at the top, not elbowed 
exteriorly ; apparently without a spine (probably the spine foreshortened); pen- 
ultimate joint long, conical, not greatly broader at base than at tip; inner plate 
or projection slight; claw long, equal in length to penultimate joint, nearly of 
uniform thickness throughout, a very little thicker at the base, not serrated, 
edge slightly rippled towards the base. 
From a J apanese in the hospital at San Francisco. (Mr W. Murray.) 
Chinese.—Rich burnt Sienna brown; obovate. 
g Anterior leg—Thumb long and well separated from the penultimate joint, 
slightly bent on exterior; apical spine distinct ;) penultimate joint twice as long 
VOL. XXII. PART III. 71 
