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Micrurus anibal NASCIMENTO, GRABOSKI, SILVA JR & PRUDENTE, 2024

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Higher TaxaElapidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymMicrurus anibal NASCIMENTO, GRABOSKI, SILVA JR & PRUDENTE 2024: 19
Micrurus helleri — JOWERS et al. 2019: 5 (fig. 2)
Micrurus ibiboboca — HURTADO-GOMEZ et al., 2021: 234 (fig. 3)
Micrurus ibiboboca — PIRES et al. 2014: 580
Micrurus ibiboboca — PIRES et al. 2021:198
Micrurus ibiboboca — SILVA et al. 2016: 120
Micrurus lemniscatus — SILVA & SITES 2001: 4
Micrurus lemniscatus — RENJIFO et al. 2012: 139 (fig. 7) 
DistributionBrazil (Rio de Janeiro, Paraná)

Type locality: Iguaba Grande municipality (22° 51'00.7"S, 42° 11'35.3"W), state of Rio de Janeiro, Brazil  
Reproduction 
TypesHolotype. MNRJ 18191, Adult male
Paratypes. All from Brazil (n = 4). Adult female, MNRJ 4900, Saquarema municipality (22°55'51.6"S, 42°29'47.2"W), Rio de Janeiro state. Adult male, MNRJ 8232, Jaconé municipality (22°55'00.0"S, 42°38'00.0"W), Rio de Janeiro State. Adult male, MNRJ 19013, Ubas, Iguaba Grande municipality (22°51'00.7"S, 42°11'35.3"W), Rio de Janeiro state. Adult female, MNRJ 19014, Ubas, Iguaba Grande municipality (22°51'00.7"S, 42°11'35.3"W), Rio de Janeiro state (Supplemental Fig. S3). 
DiagnosisDiagnosis (n=27). Micrurus anibal sp. nov. can be distinguished from all congeners by the unique combination of the following characters: black snout to the anterior border of the prefrontal scales; well-defined prefrontal white transverse band, from the middle of the second pair of supralabials to the posterior border of the prefrontals; black cephalic band extending from the posterior border of the prefrontals to the middle third of the parietals; triads in body 8–16 (average 12), ventrals 210–228 in males, 208–252 in females; subcaudals 20– 25 in males, 18–29 in females; hemipenis long, bilobed, capitate and ornamented with calcified spines; hemipenis with capitular sulcus; capitulum longer than body; basal pocket developed and ornamented by few spines. (Nascimento et al. 2024)


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CommentVenomous!

Synonymy: after Nascimento et al. 2024.

Distribution: See map in Nascimento et al. 2024: Fig. 11

Similar species: Micrurus bonita and Micrurus anibal are closely related to M. ibiboboca and may be subspecies of that species. Even though their hemipenes looks different, they are morphologically very similar. 
EtymologyNamed after Anibal Rafael Melgarejo Gimenez, a Uruguayan herpetologist and toxicologist based in Brazil, who contributed to the studies of Brazilian snakes, including coral snakes. 
References
  • Luna, I. V. de, Ugalde, M. R., Guimarães, M. R. S., Hoffmann, K., Citeli, N., Kiefer, M. C., & Hamdan, B. 2025. A Key to Identify the Snakes of Rio de Janeiro State, Brazil, along with Notes on Geographical Records. Zoological Studies, 64(20) - get paper here
  • Nascimento, L. R., Graboski, R., Silva JR, N. J., & Prudente, A. L. 2024. Integrative taxonomy of Micrurus ibiboboca (Merrem, 1820)(Serpentes, Elapidae) reveals three new species of coral snake. Systematics and Biodiversity, 22(1): 2315958 - get paper here
 
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