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

Mertensiella Wolterstorff, 1925

Class: Amphibia > Order: Caudata > Family: Salamandridae > Subfamily: Salamandrinae > Genus: Mertensiella

2 species

Exaeretus Waga, 1876, Rev. Mag. Zool., Paris, Ser. 3, 4: 327. Type species: Exaeretus caucasicus Waga, 1876, by monotypy. Junior homonym of Exaeretus Fieber, 1864 (Insecta).

Mertensiella Wolterstorff, 1925, Abh. Ber. Mus. Nat. Heimatkd. Magdeburg, 4: 244. Replacement name for Exaeretus Waga, 1876.

Mertensiella — Özeti, 1967, Copeia, 1967: 287. Treatment as a subgenus of Salamandra.

Common Names

Caucasus Salamanders (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 35).

Distribution

Known from above Trabzon in northeastern Türkiye to Borzhomi in the Caucasus Mountains of western Georgia.

Comment

See comments under Lyciasalamandra and Chioglossa. Özeti, 1967, Copeia, 1967: 287-298, considered Mertensiella to be a subgenus of Salamandra. Thorn and Raffaëlli, 2000, Salamand. Ancien Monde: 190-203, provided accounts. Raffaëlli, 2022, Salamanders & Newts of the World: 255–258, provided an account, summarizing systematics, life history, population status, and distribution (including a polygon map).

Contained taxa (2 sp.):

Mertensiella caucasica (Waga, 1876)

Mertensiella djanaschvilii Tartarashvili and Bakradze, 1989

External links:

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