SCIURUS. 105 
length, 54; zygomatic width, 31.4; length of nasals, 16.4; palatal 
fenoth, 23.2. (Bangs, 1. ‘c.) 
73. richmondi (Sciurus), Nelson, Proc. Biol. Soc. Wash., x11, 1898, p. 146. 
RICHMOND’S SQUIRREL. 
Type locality. Escondido River, fifty miles above Bluefields, 
Nicaragua. 
Geogr. Distr. Tropical lowland forests along the Escondido River, 
Nicaragua. 
Genl. Char. Similar to S. @. hoffmanit, but more ochraceous, 
under parts and tail washed with yellow. 
Color. Upper parts and base of tail dark ochraceous brown, 
darkest on crown and median part of back; sides of head yellowish 
brown; orbital ring buffy; outer side of arms, hands, and sides of 
neck, ochraceous; outer side of thighs dark ochraceous brown, feet 
similar but more ochraceous; under parts buffy yellow to dingy 
ferrugineous; tail above black, washed with yellowish, beneath 
grizzled yellowish brown narrowly bordered with black and edged 
with dull yellow; ears dark ochraceous brown, with small yellow 
basal patch, but the latter not always present. 
Measurements. Total length, 368; tail vertebre, 164; hind foot, 
53-5. okull: average of five; basal length, 42.1; palatal length, 22.1; 
interorbital breadth, 16.3; zygomatic breadth, 30.4; length of upper 
molar series, 8.3. 
variabilis moruluws (Scturus), Bangs, N. Eng. Zool. Club, 11, 1900, 
B43. 
variabilis True, Proc. U.S. Nat. Mus., vir, 1884, p. 596. 
Lion HiLy_ SQuIRREL. 
Type locality. Loma del Leon, Panama. 
Genl. Char. Skull similar to that of S. variabilis from Colombia, 
but wider and heavier. 
Color. Upper parts mixed yellow ferrugineous and blackish brown; 
dorsal region darker, blackish at base of tail; upper surface of legs 
like back of arms, ferrugineous; chin, lips, and cheeks tawny olive; 
under parts bright ferrugineous; tail above blackish at base and tip, 
remainder bright ferrugineous, beneath tawny olive and blackish, 
outer margin ferrugineous, tip black. 
Measurements. Male. Total length, 435-490; tail vertebre, 
200-235; hind foot, 55; ear, 20-25. Skull: basal length, 46.2; oc- 
cipito-nasal length, 55.2; zygomatic width, 34; mastoid width, 23.6; 
interorbital width, 17.8; width behind postorbital processes, 20.2; 
length of nasals, r7; length of palate to palatal notch, 25; upper tooth 
row, 9.4; lower tooth row, 10; mandible, 32.2. 
