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

Phrynobatrachus sandersoni (Parker, 1935)

Class: Amphibia > Order: Anura > Family: Phrynobatrachidae > Genus: Phrynobatrachus > Species: Phrynobatrachus sandersoni

Phrynodon sandersoni Parker, 1935, Ann. Mag. Nat. Hist., Ser. 10, 16: 403. Holotype: BMNH 1907.5.22.76, by original designation and according to J.-L. Perret In Frost, 1985, Amph. Species World: 443. Type locality: "5 miles inland from Kribi, S. Cameroon".

Phrynobatrachus sandersoni — Frost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 366.

English Names

Sanderson's Hook Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 104).

Sanderson's Puddle Frog (Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 270).

Distribution

Southwestern Cameroon, Gabon, and Equatorial Guinea in lowland and lower montane forest.

Comment

See brief account in Perret, 1966, Zool. Jahrb., Jena, Abt. Syst., 93: 368–369. De la Riva, 1994, Rev. Esp. Herpetol., 8: 134, provided a record for Equatorial Guinea. Lasso, Rial, Castroviejo, and De la Riva, 2002, Graellsia, 58: 21–34, provided notes on ecological distribution in Equatorial Guinea. Frétey, 2008, Alytes, 25: 99–172, summarized the literature. In species group A of Zimkus, Rödel, and Hillers, 2010, Mol. Phylogenet. Evol., 55: 883–900. Channing, Rödel, and Channing, 2012, Tadpoles of Africa: 282–283, provided information on comparative larval morphology. Dewynter and Frétey, 2019, Cah. Fondation Biotope, 27: 34, summarized the literature for Gabon. In the Phrynobatrachus krefftii group of Goutte, Reyes-Velasco, and Boissinot, 2019, ZooKeys, 824: 53–70. Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 270–271, 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.

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 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.