Marked differentiation in a new species of dwarf stonebasher, Pollimyrus cuandoensis sp. nov. (Mormyridae: Teleostei), from a contact zone with two sibling species of the Okavango and Zambezi rivers Author Kramer, Bernd University of Regensburg, Zoological Institute, D- 93040 Regensburg, Germany; Author Bank, Herman van der Department of Zoology, University of Johannesburg, African Centre for DNA Barcoding, Johannesburg, South Africa; Author Wink, Michael Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, D- 69120 Heidelberg, Germany text Journal of Natural History 2013 J. Nat. Hist. 2013-12-04 48 7 - 8 429 463 http://dx.doi.org/10.1080/00222933.2013.807950 journal article 7021 10.1080/00222933.2013.807950 a1053c94-58d2-4e68-80f8-fc983d11ee88 1464-5262 4631571 FB644B21-04F6-44F8-AEB6-8DC09268C17C Pollimyrus castelnaui (Boulenger, 1911) IPMB nos. 16554, 16555, 16558, 16559, 16560, 16561, Botswana : Okavango River: Makwena River Camp, 19 ◦ 03 ′ 16.2 ′′ S, 22 ◦ 22 ′ 51.3 ′′ E, coll. H. van der Bank. IPMB nos. 44698, 45377, 45378, Botswana : Okavango River : Makwena Lagoon, 19 ◦ 03 ′ 45.3 ′′ S, 22 ◦ 23 ′ 24.3 ′′ E, coll. H. van der Bank , March 2002 . IPMB nos. 51443, 51444, 51446, second generation fish born in captivity from parent fish from Botswana : Okavango River : Makwena Lagoon, 19 ◦ 03 ′ 45.3 ′′ S, 22 ◦ 23 ′ 24.3 ′′ E, coll. H. van der Bank , March 2002 .