The Zoogeography of Sexual Dichromatism in the Bornean Grizzled Sureli, Presbytis comata (Desmarest, 1822).
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THE SARAWAK MUSEUM JOURNAL |
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Title :
The Zoogeography of Sexual Dichromatism in the Bornean Grizzled Sureli, Presbytis comata (Desmarest, 1822). |
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Author :
Douglas Brandon-Jones |
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Abstract:
The grizzled sureli subspecies, Presbytis comata canicrus in east Kalimantan, Indonesia and P. c. sabana in Sabah, Malaysia,are chromatically monomorphic. The female of the central north Bornean subspecies however, diverges in pelage colour from the male by adopting at adulthood,a decidedly closer cephalic resemblance to that of Presbytis potenziani which is endemic to the Mentawai Islands, off the west coast of Sumatra, Indonesia. Categorical denials by Hose (1893) and Banks (1931), who had each collected and observed monkeys in Sarawak, Malaysia, for a significantly longer period than any rival, of the existence in coastal north Sarawak of the distinctive adult female morph, strongly indicate that the local subspecies, P. c. hosei with type locality Niah, is chromatically monomorphic. This implies that the inland population should be recognized as a distinct sexually dichromatic subspecies, Presbytis comata everetti (Thomas, 1893), with type locality Mount Kinabalu, Sabah, Malaysia. The geographic distribution of the four Bornean subspecies of P. comata is mapped and gazetteered. That of P. c. hosei has always been very small, and the subspecies is now probably extinct.
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| DOI: XXXX |
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How to cite:
Douglas Brandon-Jones. (1996). The Zoogeography of Sexual Dichromatism in the Bornean Grizzled Sureli, Presbytis comata (Desmarest, 1822). The Sarawak Museum Journal, L (71): 177-202 |
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References
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