Hyperolius horstockii (Schlegel, 1837)

Class: Amphibia > Order: Anura > Family: Hyperoliidae > Subfamily: Hyperoliinae > Genus: Hyperolius > Species: Hyperolius horstockii

Hyla horstockii Schlegel, 1837, Abbild. Neuer Unvollst. Amph., 1: 24. Syntypes: RMNH 1775, 10770 (2 specimens); RMNH 1775 designated lectotype by Poynton, 1963, Ann. Natal Mus., 15: 332. ZMB 3064 (originally 3 specimens) rejected as types by Tillack, de Ruiter, and Rödel, 2021, Zoosyst. Evol., Berlin, 97: 442. Type locality: "Vorgebirge der guten Hoffnung "(= Cape of Good Hope), Western Cape Province, Rep. South Africa.

Eucnemis horstokiiTschudi, 1838, Classif. Batr.: 35, 76. Incorrect subsequent spelling.

Eucnemis HorstookiiDuméril and Bibron, 1841, Erp. Gen., 6: 519. Incorrect subsequent spelling.

Hyperolius horstockiiSmith, 1849, Illust. Zool. S. Afr., 3 (Appendix): 26; Günther, 1859 "1858", Cat. Batr. Sal. Coll. Brit. Mus.: 85; Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2: 120; Noble, 1924, Bull. Am. Mus. Nat. Hist., 49: 252.

Eucnemis horstockiiSteindachner, 1867, Reise Österreichischen Fregatte Novara, Zool., Amph.: 50.

Rappia horstockiiBoulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2: 120.

Hyperolius horstockii horstockiiHewitt, 1927, Rec. Albany Mus., 3: 410.

English Names

Arum Frog (Rose, 1950, Rep. Amph. S. Afr.: 50; Rose, 1962, Rep. Amph. S. Afr., Ed. 2: 55; Cochran, 1961, Living Amph. World: 167; Wager, 1965, Frogs S. Afr.: 197; Passmore and Carruthers, 1978, J. Herpetol. Assoc. Afr., 19: 7).

Horstock's Arum-Frog (Van Dijk, 1978, J. Herpetol. Assoc. Afr., 17: 16).

Arum Lily Frog (Passmore and Carruthers, 1978, J. Herpetol. Assoc. Afr., 19: 7; Passmore and Carruthers, 1979, S. Afr. Frogs: 242; Du Preez and Carruthers, 2009, Compl. Guide Frogs S. Afr.: 246).

Arum Reed Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 67).

Yellow-striped Reed Frog (Ananjeva, Borkin, Darevsky, and Orlov, 1988, Dict. Amph. Rept. Five Languages: 72).

Horstock's Reed Frog (Channing, 2001, Amph. Cent. S. Afr.: 154).


Southern seaboard of Rep. South Africa, from Cape Town (Western Cape Province) to Tsitsikama National Park in the western part of Eastern Cape Province.

Geographic Occurrence

Natural Resident: South Africa

Endemic: South Africa


See comments by Poynton, 1963, Ann. Natal Mus., 15: 331, on nomenclature, and accounts by Schiøtz, 1999, Treefrogs Afr.: 193–195, Channing, 2001, Amph. Cent. S. Afr.: 154–155, Braack, 2004, in Minter et al. (eds.), Atlas Frogs S. Afr. Lesotho and Swaziland: 139–141, and Du Preez and Carruthers, 2009, Compl. Guide Frogs S. Afr.: 246–247. 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: 285. Channing, Rödel, and Channing, 2012, Tadpoles of Africa: 210–211, reported on comparative tadpole morphology. Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 200–201, provided a brief account, photograph, and range map.

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