Hyla hallowellii Thompson, 1912

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Hylinae > Genus: Hyla > Species: Hyla hallowellii

Hyla hallowellii Thompson, 1912, Herpetol. Notices, 2: 2. (June 28, 1912) Holotype: CAS 23808, by original designation. Type locality: "Kikaigashima, Loo Choo [= Ryukyu] Islands, Japan".

Hyla hallowelli Van Denburgh, 1912, Adv. Diagn. New Rept. Amph. Loo Choo Is. Formosa: 3. (July 29, 1912) Holotype: CAS 23806, by original designation. Type locality: "Kikaigo shima, Loo Choo Islands, Japan". Synonymy by Barbour, 1917, Occas. Pap. Mus. Zool. Univ. Michigan, 44: 1.

Hyla hallowelli hallowelliInger, 1947, Fieldiana, Zool., 32: 322.

Hyla hallowelli schmidti Inger, 1947, Fieldiana, Zool., 32: 322. Holotype: CAS 23852, by original designation. Type locality: "Naze, Amami[shima]", Ryukyu Islands, Japan. Distinctiveness doubted by Maeda and Matsui, 1990, Frogs Toads Japan, Ed. 2: 43.

Hyla (Dryophrytes) hallowelli — Fouquette and Dubois, 2014, Checklist N.A. Amph. Rept.: 331, by implication. 

English Names

Hallowell's Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 55).

Hallowell's Tree Frog (Goris and Maeda, 2004, Guide Amph. Rept. Japan: 56).


Ryukyu Archipelago (Kikaijima, Amamioshima, Kakeromajima, Yorojima, Ukejima, Tokunoshima, Yoronjima and Okinawajima), Japan.

Geographic Occurrence

Natural Resident: Japan

Endemic: Japan


In the Hyla arborea group of Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 101-102 (see comment under Hyla); more likely in the Hyla eximia group in the sense of Kuramoto, 1980, Copeia, 1980: 100-108. For discussion see Nakamura and Ueno, 1963, Japan. Rept. Amph. Color: 35, and Okada, 1931, Tailless Batr. Japan. Empire: 67-70. See also Matsui and Matsui, 1982, Japan. J. Herpetol., 9: 79-86 (for range extension), and Nishioka, Sumida, and Borkin, 1990, Sci. Rep. Lab. Amph. Biol. Hiroshima Univ., 10: 93-124. Maeda and Matsui, 1990, Frogs Toads Japan, Ed. 2: 40-43, provided an account. Goris and Maeda, 2004, Guide Amph. Rept. Japan: 56-58, provided an account, map, and photograph. Kuraishi, Matsui, Ota, and Eto, 2021, Zool. Sci., Tokyo, 38: 112–121, reported on inter-island divergence in morphology, karyotype, allozyme, and mtDNA. 

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