Petrocephalus okavangensis, Kramer & Bills & Skelton & Wink, 2012

Kramer, Bernd, Bills, Roger, Skelton, Paul & Wink, Michael, 2012, A critical revision of the churchill snoutfish, genus Petrocephalus Marcusen, 1854 (Actinopterygii: Teleostei: Mormyridae), from southern and eastern Africa, with the recognition of Petrocephalus tanensis, and the description of five new species, Journal of Natural History 46 (35 - 36), pp. 2179-2258 : 2192

Petrocephalus okavangensis sp. nov.

SAIAB 030046 , holotype, specimen R22 , 6.1 cm SL, Botswana, Okavango , Thoage River , Nguma (Guma) Lagoon, 18 ◦ 56 ′ 60 ′′ S, 22 ◦ 22 ′ 59.99 ′′ E, 3 January 1987, coll. G. Merron ,

SAIAB 186062 (41), paratypes, 4.2–7.8 cm SL, Botswana, Okavango , Thoage River , Nguma (Guma) Lagoon, 18 ◦ 56 ′ 60 ′′ S, 22 ◦ 22 ′ 59.99 ′′ E, 3 January 1987, coll. G. Merron ,

Non-types: ZSM 38665(3), 8.0– 8.1 cm SL, Botswana, Okavango , Thoage River, Guma Lagoon, 18 ◦ 57 ′ 46.6 ′′ S, 22 ◦ 22 ′ 25.3 ′′ E, 10 August 2004, coll. F. H. Van der Bank and B. Kramer ,

one specimen for EOD only, Botswana, Okavango, Thoage River, 19 ◦ 03 ′ 45.3 ′′ S, 22 ◦ 23 ′ 24.3 ′′ E, 23 March 2002, 26 ◦ C water temperature, 50 µS / cm, EOD recorded 7 March 2003 Regensburg,

one specimen for EOD only, Botswana, Okavango, Thoage River, Guma Lagoon, 18 ◦ 57 ′ 46.6 ′′ S, 22 ◦ 22 ′ 25.3 ′′ E, 17.1 ◦ C water temperature, 38 µS / cm, EOD recorded 12 August 2004,

SAIAB 36841 (24), 3.7–6.6 cm SL, Namibia, Okavango River, Popa Rapids , 18 ◦ 06 ′ 00 ′′ S, 21 ◦ 36 ′ 00 ′′ E, 15 July 1986, coll. P. Skelton ,

SAIAB 36823 (12), 3.6–7.8 cm SL, same location, second island, 14 July 1986, coll . T. Andrew, G. Merron, P. Skelton ,

SAIAB 19769 (21), 4.5–8.3 cm SL, Botswana, Okavango Delta , Moanachira River, Gadikwe Lagoon, mid island 19 ◦ 10 ′ 00 ′′ S, 23 ◦ 14 ′ 00 ′′ E, 3 November 1983, coll. G. Merron ,

SAIAB 19705 (11), 5.6–9.5 cm SL, Botswana, Okavango Delta , Moremi Game Reserve , Xakanixa Channel, opposite Safari Lodge, upper swamp 19 ◦ 10 ′ 00 ′′ S, 23 ◦ 24 ′ 00 ′′ E, 2 November 1983, coll. G. Merron ,

SAIAB 21271 (38), 3.6–9.3 cm SL, Botswana, Okavango Delta , Moremi Game Reserve, Xakanixa River, 19 ◦ 15 ′ 00 ′′ S, 23 ◦ 15 ′ 00 ′′ E, 24 June 1984, coll. G. Merron and G. May.