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Erythrolamprus dorsocorallinus (ESQUEDA, NATERA, LA MARCA & ILIJA-FISTAR, 2007)

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common Names 
SynonymLiophis dorsocorallinus ESQUEDA, NATERA, LA MARCA & ILIJA-FISTAR 2007
Erythrolamprus dorsocorallinus — GRAZZIOTIN et al. 2012
Erythrolamprus dorsocorallinus — ASCENSO et al. 2019 
DistributionVenezuela (Barinas), Brazil (Acre), Bolivia, Peru

Type locality: 40 km de la población de El Cantón, 100 m elevation, 07° 27’ 85’’ N, 71° 02’ 98’’ W, Municipio Andrés Eloy Blanco, Estado Barinas, Venezuela.  
Reproductionoviparous 
TypesHolotype: ULABG 6691 
DiagnosisDiagnosis. Erythrolamprus dorsocorallinus is distinguished from all congeners by the combination of the following characteristics: (1) 17 dorsal scale rows with reduction at midbody; (2) apical pit single; (3) ventrals 142–158 in females and 141–158 in males; (4) subcaudals 60–77 in females and 62–80 in males; (5) dorsum of head, body and tail reddish or bluish-cream with distal half of the scales black; (6) upper edges of supralabials with distinctive dark post-orbital stripe; (7) belly creamish-white with black spots with squared or rhomboid shape arranged in a checkered pattern; (8) lateral black spots and dorsal-lateral stripe absent or indistinct; (9) ventral surface of tail creamish-white without black spots; (10) intrasulcal region with elongated spines in a row extending into the medial region of the branches of the sulcus; (11) medial region of hemipenial body on asulcate face ornamented with a row of eight to ten spines; (12) sulcus spermaticus bifurcates at medial region of hemipenial body; and (13) moderate body size (SVL 300–578 mm). [from Ascenso et al. 2019: 76]

Comparisons. Erythrolamprus dorsocorallinus shares a lateral-posterior stripe along the posterior region of the body and tail, and usually a cream belly with black spots of square or rhomboid shape with E. reginae, E. macrosomus, E. zweifeli, and E. oligolepis, being the only exception for this latter which present the ventral scales ususally without marks. Among all congeners, E. dorsocorallinus differs from E. reginae, E. macrosomus, E. oligolepis, and E. zweifeli by having dorsum of head, body and tail reddish or bluish-cream, with distal half of the scales black (vs. olive green dorsal ground color on anterior third of body gradually changing to grayish-brown, except for E. zweifeli with dorsum yellowish-cream and distal half of scales black). Additionally, E. dorsocorallinus differs from all subspecies of E. epinephelus by having dorsal scales reddish or bluish-cream with apical half black (vs. dorsum of head cream or olive green with thick postorbital stripe, and dorsum of body olive cream, with bands anteriorly). Regarding the sympatric taxa, E. dorsocorallinus differs from E. cobella, E. taeniogaster and E. breviceps by having a cream belly with spots occupying an area lower than a ventral scale (vs. cream belly scattered of complete black bands, usually occupying two ventral scales); from E. miliaris by having dorsum of head, body and tail reddish or bluish-cream with the distal half of the scales colored black (vs. dorsum of head, body and tail yellowish-cream with distal half of scales are colored black and dorsal-lateral stripe absent); from E. typhlus and E. poecilogyrus by having 17 dorsal scale rows in the midbody (vs. 19 dorsal scale rows in the midbody). Differs from from E. taeniurus by having 141–158 ventral scales (vs. 152–181 ventral scales). [from Ascenso et al. 2019: 77] 
CommentSynonymy: a synonym of Liophis reginae fide WALLACH et al. 2014: 385 (citing “Dixon, in litt.”) 
Etymologynamed after its red (Latin ”corallinus”) back (Latin “ dorsum”). 
References
  • ASCENSO, ALEXANDRE C.; JOÃO C. L. COSTA, ANA L. C. PRUDENTE 2019. Taxonomic revision of the Erythrolamprus reginae species group, with description of a new species from Guiana Shield (Serpentes: Xenodontinae) Zootaxa 4586 (1): 065–097 - get paper here
  • Bernarde, Paulo Sérgio;, Reginaldo Assêncio Machado & Luiz Carlos Batista Turci 2011. Herpetofauna da área do Igarapé Esperança na Reserva Extrativista Riozinho da Liberdade, Acre – Brasil. Biota Neotrop. 11 (3): 117-144 - get paper here
  • Esqueda, L.F.; Natera, M.; la Marca, E. & Ilija-Fistar, M. 2007. Nueva especie de serpiente (Reptilia: Colubridae: Liophis) de un bosque tropical relictual en el estado Barinas, Venezuela. Herpetotropicos 2 (2): 95-103 [2005] - get paper here
  • Fonseca, Wirven Lima da; Julivaldo Dantas da Silva, Arthur Diesel Abegg, Conrado Mario da Rosa, Paulo Sergio Bernarde 2019. Herpetofauna of Porto Walter and surrounding areas, Southwest Amazonia, Brazil Herpetology Notes 12: 91-107 - get paper here
  • Grazziotin, Felipe G.; Hussam Zaher, Robert W. Murphy, Gustavo Scrocchi, Marco A. Benavides, Ya-Ping Zhang and Sandro L. Bonatto 2012. Molecular phylogeny of the New World Dipsadidae (Serpentes: Colubroidea): a reappraisal. Cladistics DOI: 10.1111/j.1096-0031.2012.00393.x - get paper here
  • Miranda, Daniele Bazzo; Nathocley Mendes Venâncio, Saymon de Albuquerque 2014. Rapid survey of the herpetofauna in an area of forest management in eastern Acre, Brazil. Check List 10 (4): 893-899 - get paper here
  • Natera-Mumaw, Marco; Luis Felipe Esqueda-González & Manuel Castelaín-Fernández 2015. Atlas Serpientes de Venezuela Santiago de Chile, Dimacofi Negocios Avanzados S.A., 456 pp. - get paper here
  • Padial, Jose M.; Giussepe Gagliardi-Urrutia, Juan Carlos Chaparro, Roberto C. Gutiérrez*, Omar Rojas-Padilla & Santiago Castroviejo-Fisher 2016. Diversidad de anfibios y reptiles en el parque nacional Alto Purús, la reserva comunal Purús y sus áreas de influencia. In: Diversidad biológica del suedeste de la amazonía peruana: avances en la investigación (Chapter: 07) Editors: José Luis Mena, C World Wildlife Fund Inc. - get paper here
  • RIVAS, GILSON A.; CÉSAR R. MOLINA, GABRIEL N. UGUETO, TITO R. BARROS, CÉSAR L. BAR- RIO-AMORÓS & PHILIPPE J. R. KOK 2012. Reptiles of Venezuela: an updated and commented checklist. Zootaxa 3211: 1–64 - get paper here
  • Souto, N.M., Pinna, P.H., Machado, A.S. & Lopes, R.T. 2017. New records, morphological variation, and description of the skull of Liophis dorsocorallinus Esqueda, Natera, La Marca and Ilija-Fistar, 2005 (Serpentes: Dipsadidae). Herpetological Review 48 (3): 532-537. - get paper here
 
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