1922] Allen, Congo Sciuridse, Anomaluridse, Idiuridze 63 



Skulls, same series: 



Occipito-nasal Length Zygomatic Breadth 



tf 55.6 (53.5-57.3) . 36.9 (35.0-38.0) 



9 57.1 (53.5-58.8) 38.3 (35.0-39.8) 



Collectors' measurements of 15 adult specimens (8 ^, 7 9) from 

 Niapu : 



Total Length Head" and Body Tail Vertebras Hind Foot Ear 



c? 559 (540-570) 313 (298-323) 248 (222-267) 60.4 (58-65) 37.6 (35-39) 

 9 582 (554-628) 311 (301-344) 261 (252-284) 61.3 (62-64) 38.1 (36-40) 



Skulls, same series: 



Occipito-nasal Length Zygomatic Breadth 

 & 56.3 (55.2-57.8) 37.5 (36.1-38.0) 



9 57.2 (56.0-58.9) 37.5 (36.8-38.4) 



The three adults (1 d\ 2 9 ) from Panga agree in proportions and 

 measurements with the Medje and Niapu specimens. The single speci- 

 men from Avakubi is a young adult male. 



In compiling the measurements given above only specimens in which 

 the dentition was fully mature were used; but while the relative number 

 with unworn teeth varies in the different categories, and tends to lower 

 the average for the series when they predominate, this factor, in the 

 present series, does not account for the slightly larger average size of the 

 females in the above statistical summaries. In the discarded specimens 

 the last molar was not fully developed, varying in different specimens 

 from just breaking the alveolus to one-half to two-thirds full height, but 

 still unpigmented. In such specimens the total length of the skull 

 ranges from 50 to 53 mm., as against 55 to 58 mm. in adults. 



Anomalurella Matschie 

 Anomalurella Matschie, 1914, Sitzungsb. Ges. riaturf. Freunde Berlin, July, 

 p. 351. Genotype, by original designation, Anomalurus pusillus Thomas. 



Anomalurella pusilla (Thomas) 



Anomalurus pusillus Thomas, 1887, Ann. Mag. Nat. Hist., (5) XX, December, 

 p. 440; 1888, Proc. Zool. Soc. London, p. 8, PL i, animal. Bellima, 1 9 (type); 

 Tingasi, 1 cf. 



Anomalurus pusillus Thomas, 1915, Ann. Mag. Nat. Hist., (8) XVI, December, 

 p. 472. Moera (1), Medje (4), Poko (7 specimens). 



Represented by 53 specimens (21 d\ 29 9 ), of which 5 are immature 

 (but none very young), 2 are skulls only, 4 skeletons, and 2 in alcohol, 

 collected as follows : 



Avakubi, 1(9), September 18, 1913. 



Ngayu, 2 (2 9 ), December 17, 20, 1909. 



