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Necturus louisianensis Viosca, 1938
Necturus louisianensis Viosca, 1938, Proc. Biol. Soc. Washington, 51: 143. Holotype: USNM 104238, by original designation. Type locality: "Big Creek a few miles east of Pollock, [Grant Parish,] Louisiana", USA.
Necturus louisianensis — Collins, 1991, Herpetol. Rev., 22: 43.
Necturus (Necturus) louisianensis — Dubois and Raffaëlli, 2012, Alytes, 28: 147.
Louisiana Waterdog (Necturus louisanensis: Viosca, 1949, Pop. Sci. Bull., Louisiana Acad. Sci., 1: 9).
Red River Waterdog (Necturus maculosus louisianensis: 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).
Red River Mudpuppy (Necturus maculosus louisianensis: Collins, Huheey, Knight, and Smith, 1978, Herpetol. Circ., 7: 7; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 34; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 34; Collins, 1997, Herpetol. Circ., 25: 8; Crother, Boundy, Campbell, de Queiroz, Frost, Highton, Iverson, Meylan, Reeder, Seidel, Sites, Taggart, Tilley, and Wake, 2001 "2000", Herpetol. Circ., 29: 25; Tilley, Highton, and Wake, 2012, in Crother (ed.), Herpetol. Circ., 39: 19; Tilley, Highton, and Wake, 2012, in Crother (ed.), Herpetol. Circ., 39: 28).
East-central Kansas to extreme southern Missouri, eastern Oklahoma and Arkansas east to the Mississippi and south into north-central Louisiana, USA.
See Guttman, Weigt, Moler, Ashton, Mansell, and Peavy, 1990, J. Herpetol., 24: 163-175, for geographic variation in allozymes. Removed from the synonymy of Necturus maculosus, where it had been placed by Schmidt, 1953, Check List N. Am. Amph. Rept., Ed. 6: 13, by Collins, 1991, Herpetol. Rev., 22: 43, who considered the two subspecies to be different species on the basis of their allopatry and diagnosability.
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