Chacophrys pierottii (Vellard, 1948)

Class: Amphibia > Order: Anura > Family: Ceratophryidae > Genus: Chacophrys > Species: Chacophrys pierottii

Ceratophrys pierottii Vellard, 1948, Acta Zool. Lilloana, 5: 151. Holotype: FML 428/1; lost, according to Lavilla, 1994 "1992", Acta Zool. Lilloana, 42: 83. Hayward, 1963, Acta Zool. Lilloana, 19: 507, reports two "cotipos" (= paratypes) remaining. Type locality: "Hickman, Province de Salta, dans la région du Chaco", Argentina.

Stombus pierottiiCei, 1955, Copeia, 1955: 291. Alternative combination.

Chacophrys pierottiReig and Limeses, 1963, Physis, Buenos Aires, 24: 125.

Ceratophrys pierottiLynch, 1971, Misc. Publ. Mus. Nat. Hist. Univ. Kansas, 53: 106.

English Names

Chaco Horned Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 71).

Lesser Chini Frog (Köhler, 1996, Herpetol. Rev., 28: 153).


Salt flats in Chaco, Córdoba, Salta, Santiago del Estero, San Luis, and Rioja provinces in northern Argentina; western Paraguay; Tarija, Bolivia.

Geographic Occurrence

Natural Resident: Argentina, Bolivia, Paraguay


Considered a hybrid between Ceratophrys cranwelli and Lepidobatrachus llanensis by Lynch, 1982, Syst. Zool., 31: 166–179, but this view was rejected by Maxson and Ruibal, 1988, J. Herpetol., 22: 228–231, on the basis of immunological evidence. See Köhler, 1996, Herpetol. Rev., 28: 155–156, for Bolivian record. Rosset, 2001 "2000", Cuad. Herpetol., 14: 165, provided the southern Argentinian record. Brusquetti and Lavilla, 2006, Cuad. Herpetol., 20: 15, briefly discussed the range in Paraguay. Quinzio, Fabrezi, and Faivovich, 2006, S. Am. J. Herpetol., 1: 202–209, described the tadpole. Lescano, 2011, J. Nat. Hist., London, 45: 2929–2938, described the advertisement and distress calls. Weiler, Núñez, Airaldi, Lavilla, Peris, and Baldo, 2013, Anf. Paraguay: 49, provided a brief account, image, and dot map for Paraguay.

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