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Rhinocheilus lecontei BAIRD & GIRARD, 1853

IUCN Red List - Rhinocheilus lecontei - Least Concern, LC

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Higher TaxaColubridae, Colubrinae, Lampropeltini, Colubroidea, Serpentes (snakes) 
Subspecies 
Common NamesE: Longnose Snake
lecontei: Western Longnose Snake
tessellatus: Texas Longnose Snake
G: Nasennatter 
SynonymRhinocheilus lecontei BAIRD & GIRARD 1853: 120
Rhinochilus [sic] lecontei — COPE 1867: 85
Rhinocheilus lecontei tessellatus GARMAN 1883: 74
Rhinocheilus antonii DUGÈS 1886
Rhinochilus [sic] lecontei —VAN DENBURGH 1895: 142
Rhinocheilus lecontei clarus KLAUBER 1941 (fide SHANNON & HUMPHREY)
Rhinocheilus antonii antonii — SMITH & TAYLOR 1945: 120
Rhinocheilus lecontei tessellatus — SMITH & TAYLOR 1945: 121
Rhinocheilus lecontei tessellatus — TAYLOR 1953
Rhinocheilus lecontei antoni — ZWEIFEL & NORRIS 1955
Rhinocheilus lecontei clarus — ZWEIFEL & NORRIS 1955
Rhinocheilus lecontei antonii — WEBB 1984
Rhinocheilus lecontei — STEBBINS 1985: 195
Rhinocheilus lecontei etheridgei GRISMER 1990
Rhinocheilus lecontei tessellatus — CONANT & COLLINS 1991: 213
Rhinocheilus lecontei — LINER 1994
Rhinocheilus lecontei tessellatus — DIXON 2000
Rhinocheilus lecontei tessellatus — TENNANT & BARTLETT 2000: 455
Rhinocheilus lecontei lecontei — LINER 2007
Rhinocheilus lecontei etheridgei — LINER 2007
Rhinocheilus lecontei antonii — FLORES-VILELA et al. 2010
Rhinocheilus lecontei — CROTHER et al. 2012 
DistributionUSA (California, Nevada, Utah, Idaho, Oklahoma, Arizona, New Mexico, SE Colorado, SW Kansas, Texas),
Mexico (Tamaulipas, Aguascalientes etc.)

antonii: Mexico (Sonora, Sinaloa, Nayarit); Type locality: San Blas near Mazatlan, Sinaloa, Mexico (probably San BIas, Nayarit, Mexico).

etheridgei: Isla Cerralvo

lecontei: USA (California, Nevada, Arizona), Mexico (Baja California Norte, N Sonora)

tessellatus: USA (New Mexico, Texas, Oklahoma, SW Kansas); Mexico (Coahuila to San Luis Potosí and west to NE Chihuahua); Type locality: Monclova, Coahuila.

Type locality: San Diego, California Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
TypesHolotype: USNM
antonii: Holotype in the Museo Alfredo Duges, Guanajuato, Mexico, juvenile female, collector unknown
etheridgei: Holotype: SDSNH 66294; paratypes SDSNH 66309
tesselatus: Holotype: MCZ (Harvard University) 4577, young female, collected by Edward Palmer, 1880. 
CommentSubspecies: GRISMER (1999) elevated Rhinocheilus lecontei etheridgei to full species status based on squamation, but using an evolutionary species concept.MANIER (2004) found that no one subspecies was consistently divergent in all analyses, leading to the conclusion that the three mainland subspecies are not sufficiently distinct to warrant separate subspecies status. The island subspecies, though not always statistically distinct, is geographically separate from other populations and differs in characters related to size. Given the small number of specimens available, a decision regarding its taxonomic status (i.e. elevation to species level) is best deferred until additional specimens can be examined and data on molecular variation can be analysed.

Reproduction: oviparous.

Type species: Rhinocheilus lecontei BAIRD & GIRARD 1853 is the type species of the genus Rhinocheilus BAIRD & GIRARD 1853. 
References
  • Axtell, Ralph W. 1939. AMPHIBIANS AND REPTILES OF THE BLACK GAP WILDLIFE MANAGEMENT AREA, BREWSTER COUNTY, TEXAS. THE SOUTHWESTERN NATURALIST 4 (2): 88-109
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  • Medica, Philip A. 1975. Rhinocheilus, R. lecontei. Catalogue of American Amphibians and Reptiles (175): 1-4 - get paper here
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