Micryletta steinegeri (Boulenger, 1909)

Class: Amphibia > Order: Anura > Family: Microhylidae > Subfamily: Microhylinae > Genus: Micryletta > Species: Micryletta steinegeri

Microhyla steinegeri Boulenger, 1909, Ann. Mag. Nat. Hist., Ser. 8, 4: 494. Syntypes: BMNH 1909.10.29.92–96 (formerly 1947.2.11.76–80) according to Parker, 1934, Monogr. Frogs Fam. Microhylidae: 145, and museum records. BMNH 1947.2.11.76 (formerly 1909.10.29.92) designated lectotype by Das, Garg, Hamidy, Smith, and Biju, 2019, PeerJ, 7(e7012): 23. Type locality: "Kanshirei", Taiwan, China.

Microhyla stejnegeriNieden, 1923, Das Tierreich, 46: 35. Incorrect subsequent spelling.

Rana gracilipes Gressitt, 1938, Proc. Biol. Soc. Washington, 51: 161. Holotype: MVZ 23108, by original designation. Type locality: "Kuraru [= Kuantzuling], alt. 150 meters, Koshun [= Hengchun] district, near South Cape, Formosa [=Taiwan]", China. Synonymy by Matsui and Busack, 1985, Herpetologica, 41: 159; Dubois, 1987, Alytes, 6: 8.

Micryletta steinegeriDubois, 1987, Alytes, 6: 4.

English Names

Stejneger's Paddy Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 91).

Stejneger's Narrow-mouthed Toad (Lue, Tu, and Hsiang, 1999, Atlas Taiwan Amph. Rept.: 62).

Paddy Frog (Lue, Tu, and Hsiang, 1999, Atlas Taiwan Amph. Rept.: 62).

Taiwan Little Pygmy Frog (Fei, 1999, Atlas Amph. China: 298).


Isolated records in central and southern Taiwan, below 1000 m elevation; associated cryptic species in mainland China, Laos, and Thailand. 

Geographic Occurrence

Natural Resident: Taiwan

Endemic: Taiwan


Removed from the synonymy of Microhyla inornata by Dubois, 1987, Alytes, 6: 8, where it had been placed tentatively by Parker, 1928, Ann. Mag. Nat. Hist., Ser. 10, 2: 498. This removal from synonymy implicitly rejected by Zhao and Adler, 1993, Herpetol. China: 163. Fei, 1999, Atlas Amph. China: 298–99, provided a brief account, figure, and map. Lue, Tu, and Hsiang, 1999, Atlas Taiwan Amph. Rept.: 62–63, provided a brief account. See illustration, map, description of geographic range and habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 454. Fei, Hu, Ye, and Huang, 2009, Fauna Sinica, Amph. 2: 920–924, provided an account and spot map. Fei, Ye, and Jiang, 2010, Colored Atlas of Chinese Amph.: 490, provided a brief account including photographs of specimens. Fei, Ye, and Jiang, 2012, Colored Atlas Chinese Amph. Distr.: 577, provided an account, photographs, and a range map. See discussion by Poyarkov, Nguyen, Duong, Gorin, and Yang, 2018, PeerJ, 6 (e5771): 1–27. Das, Garg, Hamidy, Smith, and Biju, 2019, PeerJ, 7(e7012): 23–24, designated the described the lectotype. Poyarkov, Nguyen, Popov, Geissler, Pawangkhanant, Neang, Suwannapoom, and Orlov, 2021, Russ. J. Herpetol., 28 (3A): 43, briefly discussed Micryletta cf. steinegeri as a species complex, pointing to the study of Suwannapoom, Nguyen, Pawangkhanant, Gorin, Chomdej, Che, and Poyarkov, 2020, Zool. Res., Kunming, 41: 581–588, as the evidentiary source of this view. Nguyen, Liu, Tran, Tran, Trofimets, Dau, and Poyarkov, 2024, Herpetozoa, Wien, 37: 111–121, transferred records of Micryletta cf. steinegeri from Vietnam to Micryletta hekouensis

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