new Insular Squirrels from Peninsu/ar Siam. 119 
changing back, no epaulets or groin-patches, and with a 
black-tipped tail. 
C. epomophorus, from between 13° and 7°, greyish, with 
reddish epaulets and groin-patches, the tail black-tipped. 
C. concolor,ssouthwards of about 7°, grizzled grey, without 
epaulets or groin-patches, the tail-tip not prominently black. 
Even between these intermediates may occur, but to com- 
bine the whole of the great number of local and nameable 
subspecies under one specific heading would in our opinion 
increase the already great difficulty of allocating the different 
forms to their respective groups. And we have even greater 
objection to the giving of binomial names to all. 
The Mohea squirrels alone, as will be seen below, we have 
had to exclude from this arrangement. 
With regard to the formation of names, it is obviously 
advisable to call local subspecies by terms which recall their 
localities ; but unfortunately Malay names do not lend them- 
selves to conversion into Latin terms without resulting in a 
most trying cacophony. We have therefore ventured to 
take certain liberties with the Malay words in order to reduce 
this cacophony toa minimum while still recalling the localities 
to which the new forms belong. 
The series of specimens of these squirrels examined by us 
in London is a selection, numbering four to six from each 
island, from those originally collected by Robinson and 
Kloss and the native collectors of the Federated Malay Sates 
Museums, and amounting to many hundreds. Those now 
brought home, which form the basis of this joint paper, are 
all presented to the National Museum by the anthorities of 
the Federated Malay States Museums. Of most forms here 
described it may be assumed that something like twenty have 
been examined in Kuala Lumpur by Robinson, in addition 
to those brought home and now in London, 
We commence with forms from the islands nearest to 
Salanga (Junk-Ceylon), where typical C. epomophorus occurs. 
Callosciurus epomophorus panjius, subsp. n. 
Like epomophorus, but the ears, the underside of the 
wrists, and the hairs round the genital organs prominently 
whitish. On the ears the hairs are longer and are white 
nearly or quite to their bases, not merely grizzled black and 
white as in epomophorus. Upperside of fore feet also 
averaging whiter. Amount of rufous on neck, under 
surface, and base of.tail about as in epomophorus. 
For dimensions and designation of type, see tables on p. 123. 
