Leptodactylus knudseni Heyer, 1972

Class: Amphibia > Order: Anura > Family: Leptodactylidae > Subfamily: Leptodactylinae > Genus: Leptodactylus > Species: Leptodactylus knudseni

Leptodactylus knudseni Heyer, 1972, Contrib. Sci. Nat. Hist. Mus. Los Angeles Co., 231: 3. Holotype: LACM 72117, by original designation. Type locality: "Limoncocha, 0° 24′ S, 76° 37′ W, Provincia de Napo, Ecuador".

English Names

Knudsen's Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 81).

Knudsen's thin-toed Frog (Heyer, 2005, Arq. Zool., São Paulo, 37: 314).


Greater Amazon basin of Bolivia and Brazil north to Colombia, Venezuela, Trinidad, and the Guianas.


In the Leptodactylus pentadactylus group of Heyer, 1972, Contrib. Sci. Nat. Hist. Mus. Los Angeles Co., 231: 1-8, and Heyer, 1979, Smithson. Contrib. Zool., 301: 1–43. Rodríguez and Duellman, 1994, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 22: 66–67, provided a brief account for the Iquitos region of northeastern Peru. Lescure and Marty, 2000, Collect. Patrimoines Nat., Paris, 45: 244–245, provided a photo and brief account for French Guiana. Gorzula and Señaris, 1999 "1998", Scient. Guaianae, 8: 57–58, commented on distribution in Venezuela and noted that the original description was based on a juvenile, which did not show the typically adult color pattern. Murphy, 1997, Amph. Rept. Trinidad Tobago: 86–87, provided a brief account for Trinidad. Heyer, 2005, Arq. Zool., São Paulo, 37: 269–348, provided an extensive discussion and account of variation. Heyer and Heyer, 2006, Cat. Am. Amph. Rept., 807: 1-12, provided a review. Kok and Kalamandeen, 2008, Intr. Taxon. Amph. Kaieteur Natl. Park: 214–215, provided an account and suggested that the taxon may be a species complex. See account for Surinam population by Ouboter and Jairam, 2012, Amph. Suriname: 234–237.See Cole, Townsend, Reynolds, MacCulloch, and Lathrop, 2013, Proc. Biol. Soc. Washington, 125: 423–424, for brief account and records for Guyana. In the Leptodactylus pentadactylus species group of de Sá, Grant, Camargo, Heyer, Ponssa, and Stanley, 2014, S. Am. J. Herpetol., 9(Spec. Issue 1): 1–123, and who provided a summary of relevant literature on pp. 51–52.

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