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

Hyperolius horstockii (Schlegel, 1837)

Class: Amphibia > Order: Anura > Family: Hyperoliidae > Subfamily: Hyperoliinae > Genus: Hyperolius > Species: Hyperolius horstockii

Hyla horstockii Schlegel, 1837, Abbild. Neuer Unvollst. Amph., 1: 24. Syntypes: RMNH 1775, 10770 (2 specimens); RMNH 1775 designated lectotype by Poynton, 1963, Ann. Natal Mus., 15: 332. Type locality: "Vorgebirge der guten Hoffnung "(= Cape of Good Hope), Western Cape Province, Rep. South Africa.

Eucnemis horstokii — Tschudi, 1838, Classif. Batr.: 35, 76. Incorrect subsequent spelling.

Eucnemis Horstookii — Duméril and Bibron, 1841, Erp. Gen., 8: 519. Incorrect subsequent spelling.

Hyperolius horstockii — Smith, 1849, Illust. Zool. S. Afr., 3 (Appendix): 26; Günther, 1859 "1858", Cat. Batr. Sal. Coll. Brit. Mus.: 85; Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2: 120; Noble, 1924, Bull. Am. Mus. Nat. Hist., 49: 252.

Eucnemis horstockii — Steindachner, 1867, Reise Österreichischen Fregatte Novara, Zool., Amph.: 50.

Rappia horstockii — Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2: 120.

Hyperolius horstockii horstockii — Hewitt, 1927, Rec. Albany Mus., 3: 410.

English Names

Arum Frog (Rose, 1950, Rep. Amph. S. Afr.: 50; Rose, 1962, Rep. Amph. S. Afr., Ed. 2: 55; Cochran, 1961, Living Amph. World: 167; Wager, 1965, Frogs S. Afr.: 197; Passmore and Carruthers, 1978, J. Herpetol. Assoc. Afr., 19: 7).

Horstock's Arum-Frog (Van Dijk, 1978, J. Herpetol. Assoc. Afr., 17: 16).

Arum Lily Frog (Passmore and Carruthers, 1978, J. Herpetol. Assoc. Afr., 19: 7; Passmore and Carruthers, 1979, S. Afr. Frogs: 242; Du Preez and Carruthers, 2009, Compl. Guide Frogs S. Afr.: 246).

Arum Reed Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 67).

Yellow-striped Reed Frog (Ananjeva, Borkin, Darevsky, and Orlov, 1988, Dict. Amph. Rept. Five Languages: 72).

Horstock's Reed Frog (Channing, 2001, Amph. Cent. S. Afr.: 154).

Distribution

Southern seaboard of Rep. South Africa, from Cape Town (Western Cape Province) to Tsitsikama National Park in the western part of Eastern Cape Province.

Comment

See comments by Poynton, 1963, Ann. Natal Mus., 15: 331, on nomenclature, and accounts by Schiøtz, 1999, Treefrogs Afr.: 193–195, Channing, 2001, Amph. Cent. S. Afr.: 154–155, Braack, 2004, in Minter et al. (eds.), Atlas Frogs S. Afr. Lesotho and Swaziland: 139–141, and Du Preez and Carruthers, 2009, Compl. Guide Frogs S. Afr.: 246–247. 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: 285. Channing, Rödel, and Channing, 2012, Tadpoles of Africa: 210–211, reported on comparative tadpole morphology. Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 200–201, provided a brief account, photograph, and range map.

External links:

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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 a quick link to their maps see iNaturalist KML
For access to available specimen data for this species, from over 350 scientific collections, go to Vertnet.