Journal of the Federated Malay States museums - Sabrizain.org

36 Journal of the F.M.S. Museums. [Vol. VII,
quoted by Mr. Kloss but he has unfortunately omitted to note
that therein the specimen from Koh Si Chang has been
definitely selected as the type, as indeed had already been done
by Bonhote in 1900. The dimensions given by Wroughton
perfectly agree with those of the type of Sc. f. partus, Kloss, as
is shown by the figures here repeated, those in parentheses
being from the type of Sc. f. portus. Allowance must of course
be made for the fact that the body measurements of the type
of Sc. finlaysoni have presumably been taken on the dry skin.
Head and body, 175 11971: tail, 175 (183); hindfoot, 43
(44) mm. Skull: greatest length, 46 (46.5); interorbital
breadth, 17.3 (16.7); zygomatic breadth, 28 (27.5); length of
nasals, 13 (12.6) mm.
Under the rules governing nomenclature, as almost universally
recognised by zoologists, the first reviser has the right
to designate the type of a species from the original material, if
such has not been done by the author of the species.
Sciurus finlaysoni portus therefore becomes a pure synonym
of Caljosciurus finlaysonifinlaysoni 1 Raffles).
The mainland animal being thus without a name I propose
to dedicate it to the original discoverer.
Callosciurus finlaysoni tachakdi. subsp. now
Diagnosis. Similar to the typical form from Koh Si
Chang but considerably larger, greatest length of skull
53-5— 57-° mm - against 44.0—47.7 mm. in the typical form.
Type. Male adult (skin and skull) in British Museum
from R. Mee Nan, Siam, altitude, 75 m. collected by Mr. T.
H. Lyle on April 4th, 1900 (spin. f. sub. Sciurus finlaysoni,
Bonhote, P.Z.S. (i) 1901, p. 53.)
Co-types. Krabin, Bangpakong R., Central Siam, collected
by native collector in November, 1915. Nos. CBK. 2020,
2037—8. 2046—8). (cf. Kloss, Journ. Nat. Hist. Soc. Siam, ii.
pp. 16, 30 (1916).