. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 174 Bonner zoologische Beiträge 53 (2004) colouration exists between S-Democratic Republic of Congo and E-Angola. As there is only one ventral colouration type (VC 1) in Angola, no statistical calcu- lation for ventral colour frequencies was possible (the same technical problem applies to the dorsal colouration frequencies on Bioko and in a small area north of the Congo River; see Fig. 3). Anomalurus derbianus This species shows the highest variability in colou
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 174 Bonner zoologische Beiträge 53 (2004) colouration exists between S-Democratic Republic of Congo and E-Angola. As there is only one ventral colouration type (VC 1) in Angola, no statistical calcu- lation for ventral colour frequencies was possible (the same technical problem applies to the dorsal colouration frequencies on Bioko and in a small area north of the Congo River; see Fig. 3). Anomalurus derbianus This species shows the highest variability in colouration (Plate II), ranging from more or less uniformly brownish individuals to specimens with a reddish back, dark grey patagia, black ears and a silvery stripe on the nose. The ventral colouration is much less Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Zoologisches Forschungsinstitut und Museum Alexander Koenig. Bonn : Das Forschungsinstitut
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