4. Sciurus splendens.
All the specimens are bright red bay.
Var. 1.—All over dark, and very intense red bay, with a white spot on each side of the base of the tail.
Var. 2.—Top of the head and tail, like var. 1, dark and very intense red bay: side of the back, under sides of the body, and tip of the tail paler red bay, without any white spot at the base of the tail.
Var. 3.—Uniform pale bay, like the side of var. 2: tail and middle of the back rather darker and brighter: tail without pale tip or white basal spot.
Var. 4.—Crown, middle of the back, and tail dark intense red bay: throat, chest, and under side paler red bay, like var. 2, 3: cheeks, shoulders, and thighs, and outsides of the fore and hind legs brown, grizzled, with yellow rings on the hairs: side of the body rather greyish red.
Cambodia. (Gray, Proc. Zool. Soc., 1861, p. 137.)
5. Sciurus siamensis.
Bright red-brown, grizzled, with elongate black tips to the longer hairs, each of which is marked with a broad subterminal yellow band. These black hairs are more abundant and have broad pale rings on the rump, outside of the thighs, and especially on the lower part of the tail, where they nearly hide the general red colour. The terminal half of the tail bright chestnut-brown, without any black hairs or pale rings. The throat, breast, belly, lower part of sides, inner side and edge of the legs, uniform bright red-brown: ears rounded: whiskers black: feet covered with short close-pressed hairs.