Necturus beyeri Viosca, 1937

Class: Amphibia > Order: Caudata > Family: Proteidae > Genus: Necturus > Species: Necturus beyeri

Necturus beyeri Viosca, 1937, Copeia, 1937: 123. Holotype: USNM 102674, by original designation. Type locality: "Upper Calcasieu River near Oakdale, [Allen Parish,] Louisiana", USA.

Necturus maculosus beyeriSchmidt, 1953, Check List N. Am. Amph. Rept., Ed. 6: 13.

Necturus beyeri beyeriHecht, 1958, Proc. Staten Island Inst. Arts Sci., 21: 16.

Necturus punctatus beyeriBrode, 1970, Dissert. Abstr. Internatl., Ser. B, 30: 5288.

Necturus (Parvurus) beyeriDubois and Raffaëlli, 2012, Alytes, 28: 147.

English Names

Beyer's Mudpuppy (Bishop, 1943, Handb. Salamanders: 29).

Speckled Waterdog (Viosca, 1949, Pop. Sci. Bull., Louisiana Acad. Sci., 1: 9).

Beyer's Waterdog (Schmidt, 1953, Check List N. Am. Amph. Rept., Ed. 6: 13).

Gulf Coast Waterdog (Schmidt, 1953, Check List N. Am. Amph. Rept., Ed. 6: 13; Conant, Cagle, Goin, Lowe, Neill, Netting, Schmidt, Shaw, Stebbins, and Bogert, 1956, Copeia, 1956: 175; Conant, 1975, Field Guide Rept. Amph. E. Cent. N. Am., Ed. 2: 244; Collins, Huheey, Knight, and Smith, 1978, Herpetol. Circ., 7: 7; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 34; Collins, 1997, Herpetol. Circ., 25: 7; Crother, Boundy, Campbell, de Queiroz, Frost, Highton, Iverson, Meylan, Reeder, Seidel, Sites, Taggart, Tilley, and Wake, 2001 "2000", Herpetol. Circ., 29: 24; Collins and Taggart, 2009, Standard Common Curr. Sci. Names N. Am. Amph. Turtles Rept. Crocodil., ed. 6: 15; Tilley, Highton, and Wake, 2012, in Crother (ed.), Herpetol. Circ., 39: 28; Highton, Bonett, and Jockusch, 2017, in Crother (ed.), Herpetol. Circ., 43: 30).


Two populations on either side of the valley of the Mississippi River: central Louisiana to East Texas; Florida Parishes of southeastern Louisiana to central Mississippi. Records of similar animals of unknown taxonomic status from western Florida west to Louisiana, USA.


See comments under Necturus alabamensis and Necturus lodingi. Bart, Bailey, Ashton, and Moler, 1997, J. Herpetol., 31: 192-201, suggested that this nominal taxon likely contains more than one species, USA, and suggested that populations on the eastern Gulf slope from Lake Pontchartrain through Ochlockonee river drainages be referred to as "Necturus sp. cf. beyeri". See account by Petranka, 1998, Salamand. U.S. Canada: 419–422. Guyer, 2005, in Lannoo (ed.), Amph. Declines: 867–868, provided a detailed account that summarized the biology and conservation literature. Raffaëlli, 2013, Urodeles du Monde, 2nd ed.: 220, provided a brief account, photograph, and map. Altig and McDiarmid, 2015, Handb. Larval Amph. US and Canada: 127, provided an account of larval morphology and biology.

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