56 Bulletin American Museum of Natural History [Vol. XLVI1 



some specimens than in others, the posterior half occasionally becoming 

 almost obsolete. The dark color of the back extends laterally to a little 

 below the lateral line, which thus appears to be bordered along the lower 

 side by a narrow dark band, the flanks being lighter and more suffused 

 with yellowish than the dorsal area. The rufous of the outside of the 

 limbs and upper surface of the feet varies considerably in tone, from 

 light intense rufous to dull brownish rufous. The red on the sides and 

 front of the head shares this variability of tone. 



Fully adult specimens are also very constant in size, the chief varia- 

 tion being in the length of the tail, which may be somewhat shorter or 

 longer than the normal length, thus contributing a variable element in 

 the total length. The tail vertebras are considerably shorter than the 

 head and body, forming about 46 per cent of the total length, and about 

 84 per cent of the head and body length. The two pairs of mammae are 

 both iDguinal. 



Funisciurus p. akka differs from typical pyrropus in slightly smaller 

 size and in the rufous of the limbs and head being less vivid and of a 

 browner tone, but several specimens of the present series closely approach 

 specimens of pyrropus from the Cameroon coast region. 



Funisciurus congicus congicus (Kuhl) 

 Sciurus congicus Kuhl, 1820, Beitr. Zool., part 2, p. 66. Congo. 

 Represented by one specimen, adult male, Leopoldville, July 6, 1909. 

 Collectors' measurements: Total length, 320 mm.; head and body, 

 253; tail vertebras, 167; hind foot, 39. 



Skull: Greatest length, 39.1; zygomatic breadth, 26. 

 This specimen is referable to the F. congicus group, but whether it 

 represents the typical form is not now determinable. It is evidently not 

 F. congicus interior Thomas, from Inkongo. 



Tamiscus Thomas 



Tamiscus Thomas, 1918, Ann. Mag. Nat. Hist., (9) I, p. 33. Genotype, by 

 original designation, Sciurus emini Stuhlmann. 



Tamiscus (subgenus of Paraxerus) Hollister, 1919, U. S. Nat. Mus. Bull. 99, 

 part 2, May 16, p. 14. 



Tamiscus emini emini (Stuhlmann) 

 Sciurus emini Stuhlmann (ex Matschie Ms.), 1894, 'Mit Emin Pasha,' I, part 1, 

 p. 320 (footnote), p. 321, fig. animal. Neumann, 1902, Sitzungsb. Ges. naturf. Fr. 

 Berlin, p. 180; "Lander zwischen Albert Edward und Albert Nyansa und nord- 

 westlich des Albert Nyansa bis Monbuttu." 



