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Micrurus alleni SCHMIDT, 1936

IUCN Red List - Micrurus alleni - Least Concern, LC

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Higher TaxaElapidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Arrow-headed coral snake, Allen's Coral Snake
G: Pfeilkopf-Korallenschlange, Allens Korallenotter
S: Coral Cabeza Flecha 
SynonymMicrurus alleni alleni SCHMIDT 1936
Micrurus nigricinctus alleni SCHMIDT 1936
Micrurus nigrocinctus yatesi DUNN 1942
Micrurus alleni richardi TAYLOR 1951
Micrurus yatesi TAYLOR 1954
Micrurus nigricinctus yatesi — SMITH 1958
Micrurus alleni alleni — ROZE 1967: 5
Micrurus alleni yatesi — ROZE 1967: 6
Micrurus alleni yatesi — WELCH 1994: 77
Micrurus alleni alleni — WELCH 1994: 77
Micrurus alleni — SAVAGE 2002
Micrurus yatesi — CAMPBELL & LAMAR 2004
Micrurus alleni — WALLACH et al. 2014: 441
Micrurus alleni yatesi — PIRES et al. 2021
Micrurus yatesi — MENA et al. 2022
Micrurus alleni — SOLORZANO 2022
Micrurus yatesi — SOLORZANO 2022 
DistributionE Nicaragua, Costa Rica, Panama, Honduras

alleni: E Nicaragua south along the Atlantic drainage to N Panama; Type locality: Rio Mico, seven miles above Rama, Siquia District, Nicaragua.

richardi: Costa Rica; Type locality: Los Diamantes, 2 km south of Guapiles, Costa Rica.

yatesi: Pacific southern Costa Rica and adjacent N Panama; Type locality: Farm Two, Chiriqui Land Co., near Puerto Armuelles, Chiriqui, Panama.  
Reproductionoviparous 
TypesHolotype: UMMZ 79794
Holotype: KU 25189, female [richardi]
Holotype: ANSP 22564 [yatesi] 
DiagnosisDiagnosis: An ally of Micrurus n. nigrocinctus and M. n. divaricatus, with a much higher number of ventrals in both sexes, very wide yellow bands, and a backward projection of the black marking of the head. 
CommentVenomous!

Subspecies: Roze 1996: 139 does not list any subspecies and includes richardi and yatesi in M. alleni. 
EtymologyNamed after Morrow J. Allen who collected the holotype as well as many other herpetological specimens in eastern Nicaragua. The name richardi was dedicated to Richard C. Taylor, brother of Edward Taylor, who helped to collect specimens in Costa Rica.

The name yatesi is dedicated to Thomas Yates who obtained and sent specimens from Panama to the Academy of Natural Sciences of Philadelphia. 
References
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  • Arias, Erick; Federico Bolaños 2014. A checklist of the amphibians and reptiles of San Isidro de Dota, Reserva Forestal Los Santos, Costa Rica. Check List 10 (4): 870-877 - get paper here
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  • Dunn, Emmett Reid 1942. New or Noteworthy Snakes from Panama. Notulae Naturae 108:1-8.
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  • Pires, Matheus Godoy; Darlan Tavares Feitosa, Felipe G. Grazziotin, Ana Lúcia da Costa Prudente, Nelson Jorge da Silva, Jr., and Hussam Zaher 2021. CHAPTER 2. HISTORICAL AND TAXONOMIC RELEVANCE OF COLUBER LEMNISCATUS LINNAEUS, 1758. In: Nelson Jorge da Silva Jr. et al. (eds.) Advances in Coralsnake Biology. Eagle Mountain Publishing, pp. 37-96 - get paper here
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