Hippopotamyrus ansorgii ( Boulenger, 1905 )

Kramer, Bernd & Swartz, Ernst R., 2010, A new species of Slender Stonebasher within the Hippopotamyrus ansorgii complex from the Cunene River in southern Africa (Teleostei: Mormyriformes), Journal of Natural History 44 (35 - 36), pp. 2213-2242 : 2230-2231

publication ID	https://doi.org/10.1080/00222931003764089
persistent identifier	https://treatment.plazi.org/id/7A2F4224-FFD8-FFCD-EA1D-FDD4483EFE25
treatment provided by	Felipe (2021-08-17 01:35:21, last updated by Plazi 2023-11-04 02:04:25)
scientific name	Hippopotamyrus ansorgii ( Boulenger, 1905 )
status

Treatment

Hippopotamyrus ansorgii ( Boulenger, 1905) View in CoL

( Figure 1E)

Marcusenius ansorgii Boulenger 1905 View in CoL

Hippopotamyrus ansorgii: Taverne 1971a: 104 View in CoL ; Taverne 1971b: 136; Taverne 1972: 170.

Material examined

See Material and methods section.

Type specimens

Syntypes: BMNH 1905.5.29.62–63 (2) .

Type locality

“Betweeen Benguella and Bihé”. Benguella district includes the highlands of Bihé ( Stieler 1910). The highlands are the origin of at least five major rivers flowing in all directions. The origin of the syntypes will therefore remain unclear until new evidence, possibly from historical notes, can be found giving more precise geographical information (an intensive search has so far been unsuccessful).

Diagnosis

nA, median 25 (range 24–26); nD, median 18.5 (range 18–19); SPc, median 16 (range 16–16); SLS, median 69.5 (range 67–72); LSo, mean 0.4365 (range 0.4259 –0.4470) of HL; BD, mean 0.1966 (range 0.1891 –0.240) of SL; HL, mean 0.2109 (range 0.2079 – 0.2139) of SL; PDL, mean 0.6444 (range 0.6347 –0.6542) of SL; PAL, mean 0.6118 (range 0.5990 –0.6245) of SL; pD, mean 0.3765 (0.3669 –0.3861) of SL GoogleMaps .

Hippopotamyrus ansorgii species complex specimens of uncertain status

Marcusenius ansorgii Boulenger, 1905 View in CoL . ZMH 1817 View Materials . ZMH 1817 View Materials , two specimens, Rio Cukimaala near north Lisboa (which has been renamed Huambo after 1975), a small tributary (headwater) of the Cunene in Angola, leg. Machado, 12 May 1961.

Marcusenius ansorgii Boulenger, 1905 View in CoL . ZMH 1790 View Materials , two specimens, Rio Cuchi in Angola, a tributary of the Kubango (see map of Figure 2 View Figure 2 ), no specific place given, leg. Ladiges and Voelker, 9 October 1961.

Hippopotamyrus ansorgii View in CoL . SAIAB 67459 About SAIAB , 67461–67464 About SAIAB , 67467–67469 About SAIAB , 17 specimens, and ZSM 29790, 29792–29807 View Materials , 17 specimens from the Upper Zambezi River (Upper Zambezi morph, morph Ha 1) , East Caprivi, Namibia .

Hippopotamyrus ansorgii . SAIAB 67460 About SAIAB , 67465 About SAIAB , 67466 About SAIAB , 18 specimens , ZSM 29773–29789 View Materials , 29791 View Materials , 18 specimens from the Kwando River (Kwando morph, morph Ha3), Caprivi Strip, Kongola bridge .

References

Boulenger GA. 1905. Descriptions of four new freshwater fishes discovered by Dr. W. J. Ansorge in Angola. Ann Mag Nat Hist (Ser. 7). 15: 457 - 459.

Stieler A. 1910. Hand-Atlas. Gotha: Julius Perthes.

Taverne L. 1971 a. Note sur la systematique des poissons Mormyriformes. Le probleme des genres Gnathonemus Gill, Marcusenius Gill, Hippopotamyrus Pappenheim, Cyphomyrus Myers et les nouveaux genres Pollimyrus et Brienomyrus. Rev Zool Bot Afr. 84 (1 - 2): 99 - 110.

Taverne L. 1971 b. Osteologie des genres Marcusenius Gill, Hippopotamyrus Pappenheim, Cyphomyrus Myers, Pollimyrus Taverne et Brienomyrus Taverne (Pisces Mormyriformes). Ann Mus roy Afr centr Sci zool. 188: x - 144 + 3 plates.

Taverne L. 1972. Osteologie des genres Mormyrus Linne, Mormyrops Muller, Hyperopisus Gill, Isichthys Gill, Myomyrus Boulenger, Stomatorhinus Boulenger et Gymnarchus Cuvier. Considerations generales sur la systematique des poissons de l'ordre des Mormyriformes. Ann Mus roy Afr centr Sci zool. 200: 1 - 194 + 2 plates.

Figures

Figure 2. Geography of the study area, with the sites Epupa Falls and Ruacana Falls on the Cunene River (lower Cunene morph), the Wenela site on the Upper Zambezi River (Upper Zambezi morph and Hippopotamyrus szaboi) and the Kongola site on the Kwando River (Kwando morph).