eel Pon Ol ES ONG PED hPAL Poh Ny TERE 
COLEBCTEON OF -FHE FNDIAN- MUSEUM. 
V.—TARTARIDES COLLECTED BY Mr. B. H. BUXTON IN CEYLON 
AND THE MALAY PENINSULA. 
By F. H. Gravety, M.Sc., Assistant Superintendent, 
Indian Museum. 
A valuable collection of Pedipalpi has recently been presented 
to the Indian Museum by Mr. B. H. Buxton, who obtained them 
in Ceylon and the Malay Peninsula when collecting further mate- 
tial for his work on Arachnid morphology. The Thelyphonidae 
and Tarantulidae will be dealt with in papers dealing with the 
Indo-Australian members of these groups as a whole. The time 
does not, however, appear to be ripe for the preparation of a 
general account of the Tartarides, of which group Mr. Buxton’s 
specimens form the subject of this paper. 
The chief points of interest brought out by Mr. Buxton’s 
collection of Tartarides are (1) the unsatisfactory nature of the 
distinction between Schizomus and Trithyreus+, a distinction in- 
volving the separation into different subgenera of such obviously 
allied species as crassicaudatus and perplexus; and (2) the increas- 
ing number of Oriental species whose females closely resemble the 
Papuan modestus, Hansen. It seems to me undesirable to go on 
describing these species in the absence of males on the basis of 
measurements alone. 
Schizomus (Trithyreus) perplexus, n. sp. 
Locality.—Polonuruwa, North-Central Province, Ceylon (under 
bricks 47 @, 19; under leaves I 9 and several young). 
@. Cephalothorax.—Eye-spots absent. Cephalic sternum 
about as long as broad. 
Arms.—Nearly as long as the body. ‘Trochanter slender as 
in S. (s. str.) crassicaudaius® ; lower margin lightly sinuous, convex 
basally , convex distaliy ; anterior angle long and spiniform, directed 
slightly upwards, with a similar but somewhat smaller, lightly 
upturned process arising on the inner side at its base; anterior 
margin strongly convex. Femur with a ventral tubercle at the 
base as in S. crassicaudatus, but prolonged beyond this, the total 
length of the ventral margin in front of the trochanter being more 
! See Hansen and Sérensen, Arkiv for Zoologi II (8), 1905, pp. 33-34: 
> See Hansen and Sérensen, Arkiv fdr Zoologi Il (8), 1905, pp. 40-42, 
pl. iil, figs. 1a—11. 
