Astylosternus Werner, 1898

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* = "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
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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
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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

Class: Amphibia > Order: Anura > Family: Arthroleptidae > Subfamily: Astylosterninae > Genus: Astylosternus

12 species

Astylosternus Werner, 1898, Verh. Zool. Bot. Ges. Wien, 48: 200. Type species: Astylosternus diadematus Werner, 1898, by monotypy.

Gampsosteonyx Boulenger, 1900, Proc. Zool. Soc. London, 1900: 442. Type species: Gampsosteonyx batesi Boulenger, 1900, by monotypy. Synonymy by Parker, 1931, Ann. Mag. Nat. Hist., Ser. 10, 7: 495.

Dilobates Boulenger, 1900, Proc. Zool. Soc. London, 1900: 444. Type species: Dilobates platycephalus Boulenger, 1900, by monotypy. Synonymy by Boulenger, 1903, Mem. R. Soc. Esp. Hist. Nat., 1: 61-64.

English Names

Night Frogs (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 37).

Distribution

Sierra Leone to Central African Republic and Mayombe Hills, Dem. Rep. Congo, with a gap in the region of Ghana.

Comment

In Astylosternini of 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: 336. Perret, 1966, Zool. Jahrb., Jena, Abt. Syst., 93: 376-379, provided brief accounts of the Cameroon species. Amiet, 1978 "1977", Ann. Fac. Sci. Cameroun, 23–24: 99-227, reviewed the Cameroon species and defined species groups. Rödel, Barej, Hillers, Leaché, Kouamé, Ofori-Boateng, Assemian, Gonwouo, Nopper, Brede, Diaz, Fujita, Gil, Segniagbeto, Ernst, and Sandberger-Loua, 2012, Zootaxa, 3245: : 1-29, suggested that including West African species of Astylosternus into analysis (as was done in their Neighbor-Joining Tree) might demonstrate that Astylosternus is paraphyletic with respect to Trichobatrachus. Channing, Rödel, and Channing, 2012, Tadpoles of Africa: 89–94, reported on comparative tadpoloe morphology.

Contained taxa (12 sp.):

Astylosternus batesi (Boulenger, 1900)

Astylosternus diadematus Werner, 1898

Astylosternus fallax Amiet, 1978

Astylosternus laticephalus Rödel, Hillers, Leaché, Kouamé, Ofori-Boateng, Diaz, and Sandberger, 2012

Astylosternus laurenti Amiet, 1978

Astylosternus montanus Amiet, 1978

Astylosternus nganhanus Amiet, 1978

Astylosternus occidentalis Parker, 1931

Astylosternus perreti Amiet, 1978

Astylosternus ranoides Amiet, 1978

Astylosternus rheophilus Amiet, 1978

Astylosternus schioetzi Amiet, 1978

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Amphibian Species of the World 6.0, an Online Reference