Dec. 1915. SOME NOTES ON SCLIURUS FINLAYSONI, 
AND OTHER SQUIRRELS OF STAM. 
bo 
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Piateau and east to Chantabun. Over much of the same country 
occurs a form (skull length about 50 mm.) to which the name bocouwrti 
was applied by Milne-Edwards (type from Ayuthia), but this is such 
an unstable squirrel and so many of the examples are nearly white 
(Anderson records specimens “white marked by great brown spots”), 
that it is possible the name is invalid, being applied to aberrations 
of finlaysoni with which it closely agrees in size as do the geographical 
races sinistralis (skull length about 49 mm ) from the Upper Menam 
above Pichit, dextralis (skull length about 52 mm.) from the Meping 
below Raheng, lylei (skull length about 54 mm.) from Chiengmai, and 
nox (skull length about 53.5 mm.) from Siracha S. KE. of Bangkok, all 
described by Wroughton in the paper mentioned. 
The insular forms portus and folletti, mibi, from Koh Si Chang 
and Koh Phai, with germaini, M-Edw., from Poulo Condoyve are natu- 
rally smaller (skull lengths about 47 mm.) having regard to the kind 
of island they occupy. The two former are subspecies of jinlaysont, 
but the black germaini is so fixed and its locality so isolated and re- 
mote that it may now well be regarded as a distinct species though in 
appearance but a miniature nox, or albivewilli. From the white 
jinlaysoni to the black now there is, one way or another through the 
other forms, a complete gradation of colour. 
These conclusions may be tabulated somewhat after this 
fashion. 
Mainland Islands 
sp. ferrugineus subsp. frandseni 
subsp. cinnamomeus 
sp. harmandi 
sp. albivexilli 
sp. finlaysoni subsp. portus 
subsp.: follettt 
?sp._ bocourti 
subsp. sinistralis 
subsp. dextralis 
subsp. lylei 
subsp. nox 
sp. germaini 
