ABSTRACT IN 1958 Booth1 reviewed the zoogeography of West African primates and followed Rosevear2 in placing the Cross River as the western boundary to the range of three Central African

lorisoids. These were the angwantibo, _Arctocebus calabarensis_ (Smith), Allen's bushbaby, _Galago alleni_ Waterhouse, and the needle-clawed bushbaby, _Euoticus elegantulus_ (Le Conte).

Schwarz3,4 and Hill5 had previously speculated on the Niger as the western boundary, but Rosevear's knowledge of this particular area has given much weight to the theory of the Cross

River as a faunal barrier. Apparently unknown to Booth, however, angwantibos had been recorded before 1958 (refs. 6 and 7) from Owerri, Umuahia and Aba, which lie far to the west of the

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OLIGOCENE DISPERSALS INTO EUROPE Article Open access 06 September 2021 REFERENCES * Booth, A. H., _Bulletin de l'I.F.A.N._, Ser. _A_, No. 2, 587 (1958). * Rosevear, D. R., _Checklist

and Atlas of Nigerian Mammals_ (Government Printer, Lagos, 1953). Google Scholar  * Schwarz, E., _Ann. Mag. Nat. Hist._ (10), 7, 41 (1931). Article  Google Scholar  * Schwarz, E., _Ann. Mag.

Nat. Hist._ (10), 8, 249 (1931). Article  Google Scholar  * Hill, W. C. O., _Primates_, 1—_Strepsirhini_ (Edinburgh, 1953). * Cozens, A. B., and Marchant, S. M., _Nigerian Field_, 17, 116

(1952). Google Scholar  * Pollard, W. G., _Nigerian Field_, 22, 120 (1957). Google Scholar  * Rosevear, D. R., _Nature_, 174, 190 (1954). Article  ADS  Google Scholar  * Matthews, L. H.,

_Nature_, 173, 907 (1954). Article  ADS  Google Scholar  * Morris, D. J., _The Mammals_ (London, 1965). Google Scholar  * Walker, E. P., _Mammals of the World_, 1 (Baltimore, 1964). Google

Scholar  * Sanderson, I. T., _Animal Treasure_ (London, 1937). Google Scholar  * Durrell, G. M., _The Overloaded Ark_ (London, 1953). Google Scholar  Download references AUTHOR INFORMATION

Author notes * J. F. OATES & P. A. JEWELL Present address: Department of Zoology and Comparative Anatomy, University College, London AUTHORS AND AFFILIATIONS * Division of Biological

Sciences, University of Nigeria, Nsukka J. F. OATES & P. A. JEWELL Authors * J. F. OATES View author publications You can also search for this author inPubMed Google Scholar * P. A.

JEWELL View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE OATES, J.,

JEWELL, P. Westerly Extent of the Range of Three African Lorisoid Primates. _Nature_ 215, 778–779 (1967). https://doi.org/10.1038/215778b0 Download citation * Received: 05 May 1967 *

Revised: 10 July 1967 * Published: 01 August 1967 * Issue Date: 12 August 1967 * DOI: https://doi.org/10.1038/215778b0 SHARE THIS ARTICLE Anyone you share the following link with will be

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