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

Leiopelma hamiltoni McCulloch, 1919

Class: Amphibia > Order: Anura > Family: Leiopelmatidae > Genus: Leiopelma > Species: Leiopelma hamiltoni

Liopelma hamiltoni McCulloch, 1919, Trans. Proc. New Zealand Inst., Wellington, 51: 447. Holotype: Dominion Mus. (= NMNZ), according to the original publication. Type locality: "Stephens Island, Cook Strait", New Zealand.

Leiopelma hamiltoni — Mittleman and Myers, 1949, Proc. Biol. Soc. Washington, 62: 57-68.

Leioaspetos hamiltoni — Wells and Wellington, 1985, Aust. J. Herpetol., Suppl. Ser., 1: 62; Dubois, Ohler, and Pyron, 2021, Megataxa, 5: 413.

Leiopelma pakeka Bell, Daugherty, and Hay, 1998, J. R. Soc. New Zealand, 28: 42. Holotype: MONZ AM 86, by original designation. Type locality: "Maud Island, Cook Strait, latitude 41° 01′ S, longitude 173° 53′ E", New Zealand. Synonymy by Burns, Bell, Haigh, Bishop, Easton, Wren, Germano, Hitchmough, Rolfe, and Makan, Conserv. Status New Zealand Amph.: 2.

Leioaspetos pakeka — Dubois, Ohler, and Pyron, 2021, Megataxa, 5: 413.

English Names

Brown New Zealand Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 70).

Hamilton's Frog (Ananjeva, Borkin, Darevsky, and Orlov, 1988, Dict. Amph. Rept. Five Languages: 76).

Distribution

Boulder banks near the summit of Stephens Island and Maud Island and introduced onto Motuara Island, New Zealand.

Comment

See photograph, map, description of geographic range and habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 292 (and as Leiopelma pakeka on p. 293). See van Winkel, Baling, and Hitchmough, 2019, Rept. Amph. New Zealand: 312–313, for account, photograph, and range map. Holyoake, Waldman, and Gemmell, 2001, Animal Conserv., 4: 29-35, doubted the distinctiveness of Leiopelma pakeka from from Leiopelma hamiltoni Burns, Bell, Haigh, Bishop, Easton, Wren, Germano, Hitchmough, Rolfe, and Makan, Conserv. Status New Zealand Amph.: 1–7, discussed the conservation and systematic status of this species.

External links:

Please note: these links will take you to external websites not affiliated with the American Museum of Natural History. We are not responsible for their content.

For additional sources of information from other sites search Google
For images search CalPhoto Images and Google Images
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.