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

Ambystoma silvense Webb, 2004

Class: Amphibia > Order: Caudata > Family: Ambystomatidae > Genus: Ambystoma > Species: Ambystoma silvense

Ambystoma silvensis Webb, 2004, Bull. Maryland Herpetol. Soc., 40: 132. Holotype: UTEP 8097, by original designation. Type locality: "a pond 4.5 miles (7.2 km) northeast of Navios (Navios ca. 23° 54′ N, 105° 03′ W), 8000 ft (2438 m), Durango, Mexico".

Ambystoma silvense — Raffaëlli, 2007, Les Urodèles du Monde: 85, mandatory change in spelling to make for gender agreement.

Ambystoma (Heterotriton) silvense — Dubois and Raffaëlli, 2012, Alytes, 28: 77-161.

Common Names

Pine Woods Salamander (Liner and Casas-Andreu, 2008, Herpetol. Circ., 38: 28).

Durango Salamander (Raffaëlli, 2022, Salamanders & Newts of the World: 162).

Distribution

Pine-oak highlands of the Sierra Madre Occidental in Durango and south-central Chihuahua, Mexico; possibly to the Transverse Volcanic Range (see comment).

Geographic Occurrence

Natural Resident: Mexico

Endemic: Mexico

Comment

Raffaëlli, 2007, Les Urodèles du Monde: 85, provided a brief account and figure.Enderson, Quijada-Mascareñas, Turner, Rosen, and Bezy, 2009, Check List, 5: 632-672, reported the species in Chihuahua, Mexico.Lemos-Espinal, 2007, Anf. Rept. Chihuahua Mexico: 23-24, provided an account and suggested that he was unaware of any morphological distinction from Ambystoma mavortium. The diagnosis and range of this nominal species rests on a confusing literature, including an original description that contained inconsistent information (DRF). Raffaëlli, 2013, Urodeles du Monde, 2nd ed.: 97, provided a brief account, photo, and map. Lemos-Espinal, Smith, and Valdes-Lares, 2019, Amph. Rept. Durango: 86–87, provided a brief account for Durango, Mexico. Everson, Gray, Jones, Lawrence, Foley, Sovacool, Kratovil, Hotaling, Hime, Storfer, Parra-Olea, Percino-Daniel, Aguilar-Miguel, O'Neill, Zambrano, Shaffer, and Weisrock, 2021, Proc. Natl. Acad. Sci. USA, 18 (17: e2014719118): 1–10, included this species in their study of molecular evolution and evolution of life histories in the Ambystoma tigrinum complex. Raffaëlli, 2022, Salamanders & Newts of the World: 162, provided an account, summarizing systematics, life history, population status, and distribution (including a polygon map)

External links:

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For access to general information see Wikipedia
For additional sources of general information from other websites search Google
For access to relevant technical literature search Google Scholar
For images search CalPhoto Images and Google Images
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 information on distribution, habitat, and conservation see the Map of Life
For related information on conservation and images as well as observations see iNaturalist