Abstract
Tomopterna pulchra (Boulenger, 1896) was described from “Lake Tanganyika” based on a single specimen. It was synonymised with Tomopterna tuberculosa (Boulenger, 1882) by Loveridge (1957) who noted that it did not fully agree with the description of T. tuberculosa, especially in the difference in dorsal colouration. Genetic differences show that two species are confused, although their advertisement calls and morphology are similar, except for the presence of a pale vertebral stripe mostly in eastern populations. We consider the advertisement calls, morphology, and genetic differences, and remove Tomopterna pulchra (Boulenger, 1896) from the synonymy of Tomopterna tuberculosa. Divergence dating shows that these two species separated in the mid-Miocene. Tomopterna pulchra breeds in rocky habitats, whereas T. tuberculosa breeds in sandy areas, typical of the genus. Based on genetically confirmed specimens, presently T. tuberculosa is known in the west (Angola and Namibia) while T. pulchra is only known from the east (Zambia and Tanzania). The examination of specimens for the presence or absence of a vertebral stripe infers that these species are widespread. Further work is required to determine if the two species are sympatric, and the extent of their ranges.
Subject
Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics
Reference93 articles.
1. Ahl, E. (1927 [“1925”]) Über vernachlässigte Merkmale bei Fröschen. Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin, 1925, 40–47.
2. Anonymous. (1896) The Monthly Record. The Geographical Journal, 7 (4), 425–435. [https://www.jstor.org/stable/i303167]
3. Balinsky, B.I. (1962) Patterns of animal distribution on the African Continent (summing-up talk). Annals of the Cape Provincial Museums, 2, 299–310.
4. Bellstedt, D.U., Galley, C., Pirie, M.D. & Linder, H.P. (2012) The migration of the Palaeotropical arid flora: Zygophylloidea as an example. Systematic Botany, 37, 951–959. https://doi.org/10.1600/036364412X656608
5. Bittencourt-Silva, G.B., Conradie, W., Siu-Ting, K., Tolley, K.A., Channing, A., Cunningham, M., Farooq, H.M., Menegon, M. & Loader, S.P. (2016) The phylogenetic position and diversity of the enigmatic mongrel frog Nothophryne Poynton, 1963 (Amphibia, Anura). Molecular Phylogenetics and Evolution, 99, 89–102. https://doi.org/10.1016/j.ympev.2016.03.021