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

Ptychadena chrysogaster Laurent, 1954

Class: Amphibia > Order: Anura > Family: Ptychadenidae > Genus: Ptychadena > Species: Ptychadena chrysogaster

Ptychadena chrysogaster Laurent, 1954, Ann. Mus. R. Congo Belge, Tervuren, Zool., 34: 18. Holotype: RMCA unnumbered, according to the original publication; given as RMCA 109096 by Lang, 1990, Doc. Trav., Inst. R. Sci. Nat. Belg., 59: 12. Type locality: "Lac Karago, 2. 250 m, Terr. de Kisenyi, Ruanda".

Rana (Ptychadena) chrysogaster — Guibé and Lamotte, 1955, Bull. Mus. Natl. Hist. Nat. Paris, Ser. 2, 27: 357–362. Dubois, 1981, Monit. Zool. Ital., N.S., Suppl., 15: 233; by implication.

Ptychadena chrysogaster — Dubois, 1987 "1986", Alytes, 5: 56, by implication.

Ptychadena (Ptychadena) chrysogaster — Dubois, 1992, Bull. Mens. Soc. Linn. Lyon, 61: 316.

Common Names

Yellow-bellied Ridged Frog (Broadley, 1973, J. Herpetol. Assoc. Afr., 10: 23; Broadley, 1978, J. Herpetol. Assoc. Afr., 19: 34; Channing and Howell, 2006, Amph. E. Afr.: 303).

Golden-bellied Rocket Frog (Channing and Howell, 2006, Amph. E. Afr.: 303 [alternative name]).

Rwanda Grassland Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 105).

Yellow-bellied Grass Frog (Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 338).

Distribution

Kivu (eastern Dem. Rep. Congo), Rwanda, Burundi, and southwestern Uganda, and southwestern Kenya; isolated record for Schaller's Spring, Serengeti, Tanzania.

Geographic Occurrence

Natural Resident: Burundi, Congo, Democratic Republic of the, Rwanda, Tanzania, Uganda

Comment

Dem. Rep. Congo population reviewed by Schmidt and Inger, 1959, Explor. Parc Natl. Upemba, Miss. G.F. de Witte, 56: 65–68. Southeastern material discussed by Poynton, 1964, Ann. Natal Mus., 17: 134–135, and Stewart, 1967, Amph. Malawi: 83–85. Drewes and Vindum, 1994, J. Afr. Zool., 108: 66, provided the Uganda record. Records from Angola and Mozambique refer to Ptychadena guibei (formerly Ptychadena chrysogaster guibei). Channing and Howell, 2006, Amph. E. Afr.: 303–304, provided an account. Pickersgill, 2008, Zootaxa, 1820: 67–68, noted a misidentification in Pickersgill, 2007, Frog Search: 146–147. Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 338–339, provided a brief account, photograph, and range map. Kako-Wanzalire, Mongo, Ilonga, Mapoli, Mbumba, Neema, Tungaluna, Itoka, and Bogaert, 2021, Tropicultura, 39 (1: 1709): 1–19, briefly discussed habitat preference in northeastern Dem. Rep. Congo. Dehling, Mindje, and Sinsch, 2023, Salamandra, 59: 42–50, reported on the range in Rwanda, the morphological diagnosis, and call characteristics. Dehling and Sinsch, 2023, Diversity, 15 (512): 1–81, discussed the range, identification, natural history, advertisement call, and conservation status in Rwanda. In the Ptychadena bibroni group of Nečas, Mazuch, Czurda, Elmi, Rödel, and Gvoždík, 2025, Afr. J. Herpetol., 73: 236–260.

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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 observations see iNaturalist