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

Caecilia subnigricans Dunn, 1942

Class: Amphibia > Order: Gymnophiona > Family: Caeciliidae > Genus: Caecilia > Species: Caecilia subnigricans

Caecilia subnigricans Dunn, 1942, Bull. Mus. Comp. Zool., 91: 511. Holotype: ANSP 4921; not 4821 as stated in the description, according to Taylor, 1968, Caecilians of the World: 435. Type locality: "Magdalena River, Colombia".

Common Names

Magdalena Valley Caecilian (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 23).

оливковая червяга (Russian: Ananjeva, Borkin, Darevsky, and Orlov, 1988, Dict. Amph. Rept. Five Languages: 13).

Distribution

Known from the Caribbean Coast and Magdalena Valley, Departaments of Atlántico, Bolívar, Cesar, Córdoba, Magdalena, and Sucre, Colombia, ranging from 10–150 m, and (questionably, see comment) from Falcón state in northern Venezuela, and Táchira Department, Colombia.

Geographic Occurrence

Natural Resident: Colombia

Likely/Controversially Present: Venezuela

Endemic: Colombia

Comment

Lynch, 2000 "1999", Rev. Acad. Colomb. Cienc. Exact. Fis. Nat., 23: 328, commented on systematics and distribution. See map provided by Acosta-Galvis, Torres, and Pulido-Santacruz, 2019, ZooKeys, 884: 138. Fernández-Roldán and Lynch, 2023, Zootaxa, 5270: 204–205, discussed the range and rejected previously published records from Departamento Nariño, Colombia (Lynch, 2000 "1999"), Departamento Cauca (Pisso-Florez, Silva-Velasco, Maya, Vanegas-Guerrero, and González-Durán, 2018, Rev. Nov. Colombiana, 2), which they tenatively reassigned to Caecilia guntheri. Fernández-Roldán and Lynch, 2025, Rev. Latinoam. Herpetol., 8(3: e984): 148–168, discussed and amended the diagnosis and suggested that the Venezuelan record from Riecito, Falcón, Venezuela, is not Caecilia subnigricans but more likely an unnamed species. They also suggested that the the individuals obtained by Péfaur, Sierra, and Godoy, 1987, J. Herpetol., 21: 335–337, from Embalse La Honda, Táchira, Colombia, could likely be the recently described Caecilia epicrionopsoides. They provided more extensive discussion of the history of Caecilia taxonomy in Colombia and the challenges remaining.

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 related information on conservation and images as well as observations see iNaturalist