SPECIAL WORK. 
Mamm . 33 
a. SciURIDiE. 
Allen, J. A. A Review of some of the North American Ground- 
Squirrels of the genus Tamias. Bull. Am. Mus. Nat. Hist, iii, 
pp. 45-116. 
This paper is restricted to the forms included in the author’s previous 
works under Tamias asiaticus , and the one described by Merriam as T. 
macrorhabdotes. Nine of these forms have previously received separate 
varietal names ; the species minimus , quadrimaculatus , and macrorhabdotes 
bringing up the named forms to eleven in number. The author now pro- 
poses to rank these under twenty-four distinct names, to sixteen of which 
are assigned specific rank. The following new specific names are given, 
viz., umbrinus (p. 96), obscurus (p. 70), cinereicollis (p. 94), speciosus (p. 
8 Q),frater (p. 88), amcenus (p. 90), and senex (p. 83) ; the five following 
varietal names are raised to specific rank, viz., quadrivittatus (p. 97), 
bulleri (p. 92), dorsalis (p. 68), merriami (p. 84), and townsendi (p. 72) ; 
while the new varietal names proposed are quadrivittatus neglectus (p. 106), 
qu. affinis (p. 103), qu. luteiventris (p. 101), qu. gracilis (p. 99), minimus 
consobrinus (p. 112), and m. pictus { p. 115). The typical T. asiaticus is 
regarded as exclusively Euro- Asiatic. 
. On Seasonal Variations in Colour in Sciurus hudsonianus. Bull. 
^ Am. Mus. Nat. Hist, iii, pp. 41-44. 
Shows that the black lateral line is a feature of the summer pelage, 
and that the seasonal change of coloration is due to a shedding of the 
hairs. 
Meyer, A. B. Description of a new Squirrel from the Philippine 
Islands. P. Z. S. 1890, pp. 599-601. 
Eupetaurus cinereus : F. A. Jentink, Notes Leyd. Mus. xii, pp. 143 & 
144, pi. vii, figs. 1 & 2, records a specimen in the Leyden Museum, said 
to be from Tibet, with figures of the dentition. 
Sciuropterus platyurus , n. sp., Jentink, t. c. pp. 145-148, pi. vii, 
figs. 3-10, Sumatra. 
Sciuropterus vordermanni , n. sp., Jentink, t. c. pp. 150 & 151, pi. vii, 
fig. 15, Billiton (off Borneo). 
Sciurus cagsi , n. sp., A. B. Meyer, l. c., Philippines. 
Sciurus everetti , n. sp., O. Thomas, Ann. N. H. (6) vi, pp. 171 & 172, 
Borneo. 
Sciurus weberi , n. sp., F. A. Jentink, in Weber’s Zool. Ergeb. (supra, 
p. 18), p. 115, pis. viii & x, figs. 1-3, Celebes. 
Sciurus hudsonius, n. var. mogollonensis , E. A. Mearns, Bull. Am. Mus. 
Nat. Hist, ii, pp. 277-280, Arizona. 
. Sciurus niger , n. var. melanonotus , O. Thomas, P. Z. S. 1890, pp. 73 & 
74, pi. vi, Vera Cruz, Mexico. 
Sciurus bayonii , n. sp., J. V. B. Du Bocage, J. Sci. Lisb. (2) ii, p. 3, 
Angola. 
1890. [vol. xxvii.] c 3 
