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Xenopus epitropicalis Fischberg, Colombelli, and Picard, 1982
Xenopus epitropicalis Fischberg, Colombelli, and Picard, 1982, Alytes, 1: 53. Holotype: BMNH 1982.462, by original designation. Type locality: "confluent de la Funa et de la Kemi, à 8 km au sud du centre de Kinshasa (Zaïre); altitude 350 m; 4° 18′ S, 15° 18′ E".
Silurana epitropicalis — Cannatella and Trueb, 1988, Zool. J. Linn. Soc., 94: 1–38; Dubois, Ohler, and Pyron, 2021, Megataxa, 5: 413.
Xenopus (Silurana) epitropicalis — Kobel, Loumont, and Tinsley, 1996, in Tinsley and Kobel (eds.), Biol. Xenopus: 21; Kobel, Barandun, and Thiebaud, 1998, Herpetol. J., 8: 13.
Common Names
Southern Tropical Platanna (Channing, 2001, Amph. Cent. S. Afr.: 239).
Congolese Clawed Frog (Evans, Carter, Greenbaum, Gvoždík, Kelley, McLaughlin, Pauwels, Portik, Stanley, Tinsley, Tobias, and Blackburn, 2015, PLoS One, 10(12): e0142823: 23).
Distribution
Highly provisional at this point due to confusion with Xenopus mellotropicalis: found definitely only around Kinshasa, Dem. Rep. Congo and northeast from there along the Congo River to near the confluence of the Kwa River and from Point Noire, Rep. Congo and the Cabinda enclave and the extreme northeast of Angola; likely into northeastern Dem. Rep. Congo; previous records from west and north of the Sanage River in Cameroon are likely attributable to other species.
Geographic Occurrence
Natural Resident: Angola, Cameroon, Congo, Democratic Republic of the, Congo, Republic of the, Gabon
Comment
Xenopus epitropicalis is tetraploid (2n=40) with respect to Xenopus tropicalis (see Fischberg, Colombelli, and Picard, 1982, Alytes, 1: 53); although morphologically difficult to distinguish, these species also differ in mating call characteristics (Loumont, 1983, Rev. Suisse Zool., 90: 174). See account by Channing, 2001, Amph. Cent. S. Afr.: 239–240. Frétey and Blanc, 2002 "2001", Bull. Soc. Zool. France, 126: 379, included this species in their list of species from Gabon. Evans, 2008, Frontiers Biosci., 13: 4687–4706, provided a detailed discussion of phylogenetics and reticulate evolution. See account by Evans, Carter, Greenbaum, Gvoždík, Kelley, McLaughlin, Pauwels, Portik, Stanley, Tinsley, Tobias, and Blackburn, 2015, PLoS One, 10(12): e0142823: 1–51, who provided an account and range map. Knytl, Smolík, Kubíčková, Tlapáková, Evans, and Krylov, 2017, PLoS One, 12 (5: e0177087): 1–16, reported on karyological evolution. Marques, Ceríaco, Blackburn, and Bauer, 2018, Proc. California Acad. Sci., Ser. 4, 65 (Suppl. II): 59, discussed the literature of Xenopus cf. epitropicalis and provided a map for Angola. Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 42–43, provided a brief account, photograph, and range map. Sánchez-Vialas, Calvo-Revuelta, Castroviejo-Fisher, and De la Riva, 2020, Proc. California Acad. Sci., Ser. 4, 66: 137–230, did not include this species in the Equatorial Guinea fauna.
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