Werneria mertensiana Amiet, 1976

Class: Amphibia > Order: Anura > Family: Bufonidae > Genus: Werneria > Species: Werneria mertensiana

Bufo mertensi Amiet, 1972, Ann. Fac. Sci. Cameroun, 11: 125. Holotype: JLA 70.380, by original desgnation; now MHNG 1253.91 according to Grandison, 1985, In Frost (ed.), Amph. Species World: 77; and Schätti, Perret, and Mariaux, 2002, Cat. Comm. Types Amph. Rept. Mus. Hist. Nat. Geneve, Vers. 4.0 (Jan. 2002): 20. Type locality: "Mt Nlonako, env. de N'Kongsamba, 1.000 m", Cameroon. Junior homonym of Bufo ictericus mertensi Cochran, 1950.

Werneria mertensiana Amiet, 1976, Rev. Zool. Bot. Afr., 90: 43. Replacement name for Bufo mertensi Amiet, 1972.

Bufo mertensiana — Grandison, 1981, Monit. Zool. Ital., N.S., Suppl., 15: 187-215; Lawson, 1993, Herpetol. Nat. Hist., 1: 41.

Werneria preussi mertensianaAmiet, 1982, Mem. Mus. Natl. Hist. Nat. Paris, A—Zool., 132: 29-42; De la Riva, 1994, Rev. Esp. Herpetol., 8: 129.

English Names

Mertens' Smalltongue Toad (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 46).

Mertens' Torrent Toad (Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 100).

Distribution

Western Cameroonian mountain areas, to the Kala and Mbam–Minkoum moutnains around Yaoundé, southern Cameroon, as well arguably as from Monte Alén in Equatorial Guinea (see comment), 800 to 1050 m elevation. 

Comment

In a privately circulated "List provisoire des amphibiens anoures du Cameroun" J.-L. Amiet suggested that this is a subspecies of Werneria preussi. Rödel, Schmitz, Pauwels, and Böhme, 2004, Zootaxa, 720: 1-28, discussed confusion with other species. See photograph, map, description of geographic range and habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 206. Rödel, Schmitz, Pauwels, and Böhme, 2004, Zootaxa, 720: 23, discussed the Equatorial Guinea record. Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 100–101, provided a brief account, photograph, and range map. See brief account (as Werneria cf. mertensiana), range map, and photographs for Equatorial Guinea in Sánchez-Vialas, Calvo-Revuelta, Castroviejo-Fisher, and De la Riva, 2020, Proc. California Acad. Sci., Ser. 4, 66: 137–230.

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