Search tool	Example of search string in box	What that means to the database
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	Hyl*	Will find all uses of "Hyl . . ." anywhere in a record: e.g., Hylarana, Hyla, Hylidae, Hylinae, Hylaedactyla.
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	*Hyla	Will find all uses of ". . . hyla" anywhere in a record: e.g., Hyla, Hylidae, Plectrohyla, Ptychadena hylaea, Adenomera hylaedactyla
	Hyla	Will find all records that contain stand-alone uses of Hyla: e.g., Hyla, Hyla arenicolor
Strings of words without quotation marks	Lithobates pipiens	Interprets this as "Lithobates OR pipiens" so will find the union of all records that contain either "Lithobates" or "pipiens": e.g., Lithobates omiltemanus, Hylorana pipiens
Strings of word with quotation marks	"Lithobates pipiens"	Interprets this as "Lithobates AND pipiens" so will return all records that have the character string "Lithobates pipiens" anywhere within a record: e.g., all members of the Lithobates pipiens complex.
AND statement. Means that the results of the search must include both words held together by an AND	Lithobates AND pipiens	Same as "Lithobates pipiens"
OR statement. Means that the results of the search will all records that have either of the terms held together by an OR	Lithobates OR "Costa Rica"	Recovers all records that contain the word "Lithobates" or "Costa Rica": 402 records inasmuch as this will include all records for the entire amphibian fauna of Costa Rica
Combining Boolean operators within the Basic Search box (AND, OR, NOT, quotation marks)	Lithobates AND "Costa Rica" NOT forreri	Recovers only records that contain the word Lithobates AND "Costa Rica", but excludes any record that contains the word "forreri" in any part of the record: 9 records
Printable HELP file

Search tool	Example of search string in box	What that means to the database
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	Hyl*	Will find all uses of "Hyl . . ." anywhere in a record: e.g., Hylarana, Hyla, Hylidae, Hylinae, Hylaedactyla.
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	*Hyla	Will find all uses of ". . . hyla" anywhere in a record: e.g., Hyla, Hylidae, Plectrohyla, Ptychadena hylaea, Adenomera hylaedactyla
Single word	Hyla	Will find all records that contain stand-alone uses of Hyla: e.g., Hyla, Hyla arenicolor
Strings of words without quotation marks	Lithobates pipiens	Interprets this as "Lithobates OR pipiens" so will find the union of all records that contain either "Lithobates" or "pipiens": e.g., Lithobates omiltemanus, Hylorana pipiens
Strings of word with quotation marks	"Lithobates pipiens"	Interprets this as "Lithobates AND pipiens" so will return all records that have the character string "Lithobates pipiens" anywhere within a record: e.g., all members of the Lithobates pipiens complex.
AND statement. Means that the results of the search must include both words held together by an AND	Lithobates AND pipiens	Same as "Lithobates pipiens"
OR statement. Means that the results of the search will all records that have either of the terms held together by an OR	Lithobates OR "Costa Rica"	Recovers all records that contain the word "Lithobates" or "Costa Rica": 402 records inasmuch as this will include all records for the entire amphibian fauna of Costa Rica
Combining Boolean operators within the Basic Search box (AND, OR, NOT, quotation marks)	Lithobates AND "Costa Rica" NOT forreri	Recovers only records that contain the word Lithobates AND "Costa Rica", but excludes any record that contains the word "forreri" in any part of the record: 9 records
Printable HELP file

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 hallowelli — Inger, 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).

Distribution

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

Comment

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.

External links:

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For additional sources of information from other sites search Google
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To search the NIH genetic sequence database, see GenBank
For additional information see AmphibiaWeb report
For information on conservation status and distribution see the IUCN Redlist
For related information on conservation and images as well as observation see iNaturalist
For access to available specimen data for this species, from over 350 scientific collections, go to Vertnet.