1915.] Allen, Review of the South American Sciuride. 261 
A single specimen (@ ad.) from Don Diego, at mouth of Don Diego 
River (sea level), is melanistic. The upperparts are very dark, the hairs 
being merely slightly tipped with ochraceous, black prevailing on the median 
area; the usual white area below is bordered with a narrow line of black, 
which also outlines the white on the inside of the limbs, and the throat is 
black. The tail is of the normal deep red, but elsewhere red has been largely 
replaced with black. 
Specimens examined, 60.— Colombia: Bonda, 46! (36, Am. Mus., 10, 
Nat. Mus.); Minca, 4 (Am. Mus.); “South America,” 1 (Nat. Mus.); 
Minca, 8 (Pittsburgh Mus.); Don Diego, 1, melanistic (Am. Mus.). 
Remarks.— Mr. Bangs’s application of the name Scturus variabilis 
Geoffroy to the Santa Marta squirrel proves to have been wholly unjustifia- 
ble To no large Colombian squirrel is it hardly less applicable than to 
this species. The type in all probability came from somewhere in north- 
western Colombia but as yet no specimens are known to which the descrip- 
tion and figure are applicable. The probability is that the name was based 
on some at present unknown phase of the Scturus gerrardi group, carelessly 
and improperly described and very erroneously figured, and until some form 
more closely agreeing with the alleged characters has been discovered than 
is now known it seems best to treat Geoffroy’s name as indeterminable, 
for reasons already fully given in the present paper (antea, pp. 289, 240). 
The name has been applied by authors to all of the large South American 
squirrels with red backs and white bellies, from northern Colombia and 
Panama to Peru and Brazil. 
Mesosciurus saltuensis magdalene (Allen). 
‘Sciurus saltuensis magdalene ALLEN, Bull. Amer. Mus. Nat. Hist., XX XIII, 
p. 593, Oct. 8, 1914. 
Type locality.— Banco, Rio Magdalena, a few miles above mouth of Rio 
Cesar, Colombia; altitude 50-100 feet. 
Geographic distribution.— Known only from the aie locality. 
Description.— “ Pelage short, coarse and rigid, almost without undertfur. 
Upperparts uniform deep red except front and sides of head, which are 
orange yellow; underparts and proximal portion of inside of limbs pure 
white; chin orange yellow, passing into orange red on the throat, sharply 
contrasting with the white of the lower throat and chest; tail wholly intense 
1 The Bonda specimens, originally 60 in number, were all collected by the H. H. Smith 
Expedition, but some have since been sent to other Museums, including 10 to the U. S. 
National Museum. 
2 Cf. Allen, Bull. Amer. Mus. Nat. Hist., XII, p. 216; <bid., bh, OF 0 434, and antea, p. 239. 
