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 olivaceus Buchholz and Peters, 1876

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

Hyperolius olivaceus Buchholz and Peters in Peters, 1876, Monatsber. Preuss. Akad. Wiss. Berlin, 1876: 120. Syntypes: ZMB 8829 (3 specimens) according to Bauer, Günther, and Klipfel, 1995, in Bauer et al. (eds.), Herpetol. Contr. W.C.H. Peters: 44; now renumbered ZMB 8829 and ZMB 53264–53265 (formerly part of ZMB 8829) according to Tillack, de Ruiter, and Rödel, 2021, Zoosyst. Evol., Berlin, 97: 431. Type locality: "Limbareni am Ogowe" = Lambaréné on the river Ogooué (or Ogowe), Moyen-Ogooué Province, Gabon.

Hyperolius fimbriolatus Buchholz and Peters in Peters, 1876, Monatsber. Preuss. Akad. Wiss. Berlin, 1876: 121. Syntypes: ZMB 8830 (2 specimens), according to Laurent, 1961, Rev. Zool. Bot. Afr., 64: 79; now numbered ZMB 8830 and ZMB 65178 (formerly part of ZMB 8830) according to Tillack, de Ruiter, and Rödel, 2021, Zoosyst. Evol., Berlin, 97: 421. Type locality: "Limbareni am Ogowe" = Lambarene, Moyen-Ogooué Province, Gabon. Synonymy with Hyperolius cinnamomeoventris olivaceus suggested by Laurent, 1961, Rev. Zool. Bot. Afr., 64: 79, and confirmed by Lötters, Gossmann, Obame, and Böhme, 2001, Herpetofauna, Weinstadt, 23: 29.

Rappia fimbriolata — Boettger, 1888, Ber. Senckenb. Naturforsch. Ges., 1888: 98.

Hyperolius fimbriata — Tornier, 1896, in Möbius (ed.), Deutsch Ost-Afr., 3: 153. Incorrect subsequent spelling of Hyperolius fimbriolatus according to Tillack, de Ruiter, and Rödel, 2021, Zoosyst. Evol., Berlin, 97: 421–422.

Hyperolius cinnamomeoventris olivaceus — Laurent, 1943, Ann. Mus. R. Congo Belge, Tervuren, Zool., 4: 67, 80.

Hyperolius olivaceus — Schick, Kielgast, Rödder, Muchai, Burger, and Lötters, 2010, Zootaxa, 2501: 33; Dewynter and Frétey, 2019, Cah. Fondation Biotope, 27: 24.

Hyperolius cinnamomeoventris olivaceus — Bell, Parra, Badjedjea, Barej, Blackburn, Burger, Channing, Dehling, Greenbaum, Gvoždík, Kielgast, Kasumba, Lötters, McLaughlin, Nagy, Rödel, Portik, Stuart, VanDerWal, Zassi-Boulou, and Zamudio, 2017, Mol. Ecol., 26: 5239.

Common Names

Olive Reed Frog (Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 196).

Distribution

Coastal and southeastern region of Equatorial Guinea and Gabon to western Rep. Congo; Cabinda Province, Angola. Presumably to be found in western Dem. Rep. Congo.

Geographic Occurrence

Natural Resident: Angola, Congo, Republic of the, Equatorial Guinea, Gabon

Likely/Controversially Present: Congo, Democratic Republic of the

Comment

Resurrected from the synonymy of Hyperolius cinnamomeoventris by Schick, Kielgast, Rödder, Muchai, Burger, and Lötters, 2010, Zootaxa, 2501: 33, but subsequently treated as a subspecies of Hyperolius cinnamomeoventris by Bell, Parra, Badjedjea, Barej, Blackburn, Burger, Channing, Dehling, Greenbaum, Gvoždík, Kielgast, Kasumba, Lötters, McLaughlin, Nagy, Rödel, Portik, Stuart, VanDerWal, Zassi-Boulou, and Zamudio, 2017, Mol. Ecol., 26: 5223–5244, who also discussed biogeography. Previously considered a junior synonym of Hyperolius fuscigula by Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2: 124. Recognized by Ahl, 1931, Das Tierreich, 55: 293. Synonymy by Laurent, 1943, Ann. Mus. R. Congo Belge, Tervuren, Zool., 4: 67, 80. Synonymy considered tentative by Lötters, Gossmann, Obame, and Böhme, 2001, Herpetofauna, Weinstadt, 23: 28-29. Gilbert and Bell, 2017 "2018", Biol. J. Linn. Soc., 123: 1–11, reported on advertisement call. Jongsma, Tobi, Dixon-MacCallum, Bamba-Kaya, Yoga, Mbega, Mve Beh, Emrich, and Blackburn, 2017, Amph. Rept. Conserv., 11 (1: e144): 12–13, provided records for southeastern Gabon and briefly discussed habitat and range. Dewynter and Frétey, 2019, Cah. Fondation Biotope, 27: 24,, summarized the literature for Gabon, provided a photograph (p. 59). and recognized Hyperolius olivaceus. Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 196–197, provided a brief account, photograph, and range map. See brief account, range map, and photographs for Equatorial Guinea in Sánchez-Vialas, Calvo-Revuelta, Castroviejo-Fisher, and De la Riva, 2020, Proc. California Acad. Sci., Ser. 4, 66: 137–230. Tillack, de Ruiter, and Rödel, 2021, Zoosyst. Evol., Berlin, 97: 407–450, briefly discussed the types, collectors, collecting itinerary, and early literature for Hyperolius fimbriolatus and Hyperolius olivaceus. Lobón-Rovira, Baptista, Clark, Jongsma, Conradie, Veríssimol, and Vaz Pinto, 2025, Afr. J. Herpetol., 74: 27–28, reported the species from several localities in Cabinda Province, Angola.

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