Chersodromus liebmanni REINHARDT, 1861
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Higher Taxa | Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
Subspecies | |
Common Names | E: Liebmann's Earth Runner S: Corredora de Liebmann |
Synonym | Chersodromus liebmanni REINHARDT 1861: 243 Chersodromus nigricans REINHARDT 1861: 245 Opisthiodon torquatus PETERS 1861: 461 Ninia liebmanni — GARMAN 1884: 95 Chersodromus liebmanni — BOULENGER 1893: 295 Dirosema collare WERNER 1900: 197 Chersodromus liebmanni — PETERS & OREJAS-MIRANDA 1970: 57 Chersodromus liebmanni — LINER 1994 Chersodromus liebmanni — LINER 2007 Chersodromus liebmanni — WALLACH et al. 2014: 159 |
Distribution | Mexico (Oaxaca, Veracruz, Puebla) Type locality: Cuautlapan, Veracruz, Mexico (fide SMITH & TAYLOR 1950). nigricans: Type locality: “Mexico.” Restricted to Cuautlapan, Veracruz, Mexico, by Smith & Taylor (1950:347), and to Mirador, Veracruz, Mexico by Smith & Braetrup (1963:240). |
Reproduction | oviparous |
Types | Holotype: ZMUC 60561, Copenhagen Mus. (fide SMITH & TAYLOR 1945) Holotype: ZMUC 60562 [Chersodromus nigricans] Holotype: ZMB, Type locality: Huanusco [= Huatusco], Veracruz. [Opisthiodon torquatus] |
Diagnosis | Diagnosis (genus): The genus is characterized by a fused prefrontal shield. Diagnosis. Chersodromus liebmanni can be distinguished from all Mexican species of snakes by having combination of prefrontals fused into single scale; postocular fused with supraocular; dorsal scales keeled in 17 rows at midbody, unreduced posteriorly; supralabials 7, third and fourth entering orbit; infralabials 7–8, usually 1– 5 contacting anterior chinshields (5 narrowly); mental contacting anterior chinshields; venter cream colored. This species may be distinguished from all species of Chersodromus, except C. rubriventris, by having the postocular fused with supraocular; from C. rubriventris by having 17 scales around body (vs. 15), ventral surface uniformly cream (vs. bright orange) (Table 1). Ninia diademata Baird & Girard (1853) might be confused with this species, and they are sympatric at some localities in Oaxaca and Veracruz. Ninia diademata differs from Chersodromus in having paired prefrontals shields, 19 strongly keeled dorsal scale rows, and two postoculars, larger body size (reaching at least 330 cm TL), and more slender tail. |
Comment | Synonymy after PETERS & OREJAS-MIRANDA 1970. Dixon & Ketchersid (1969) synonymized Schmidtophis with Chersodromus. According to Canseco-Márquez et al. 2018, Zweifel (1954), described C. nigricans from Guerrero, however, Scott (1967) placed this name into the synonymy of Tropidodipsas annulifera. Type species: Chersodromus liebmanni REINHARDT 1861 is the type species of the genus Chersodromus REINHARDT 1861. Mimicry: Chersodromus liebmanni mimicks Micrurus elegans (TORRE-LORANCA et al. 2006). Distribution: Guatemala fide PETERS & OREJAS-MIRANDA 1970, but not in Guatemala fide KÖHLER 2008. Conservation: IUCN category: least concern (LC) |
Etymology | The generic name comes from the Greek words cherso, meaning "earth," and dromus, meaning "a runner." |
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