Chironius leucometapus DIXON, WIEST & CEI, 1993
Can you confirm these amateur observations of Chironius leucometapus?
Chironius leucometapus
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| Higher Taxa | Colubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Yellow-headed Sipo |
| Synonym | Chironius fuscus leucometapus WIEST 1978 Chironius fuscus leucometapus DIXON, WIEST & CEI 1993: 123 Chironius leucometapus — HOLLIS 2006 Chironius leucometapus — SOUZA-FILHO et a. 2012 Chironius leucometapus — WALLACH et al. 2014: 161 Chironius leucometapus — BERNAL & DUBOIS 2023 |
| Distribution | N Ecuador, Peru (Huanuco, Junin, San Martin), 500–3500 m elevation Type locality: “Peru, Depanmenl of Junin, Chanchamayo” |
| Reproduction | oviparous. |
| Types | Holotype: AMNH 53317 |
| Diagnosis | Diagnosis: “has a while or dirty yellow forehead, without a dark postocular stripe, and without enlarged spines proximally in the spinous portion of the hemipenis” [DIXON et al. 1993: 125]. |
| Comment | Distribution: see map in DIXON et al. 1993: 111. Synonymy: Wiest published the description of C. dixoni in his PhD thesis, which was later published again in slighly modified form by Dixon et al. 1993. Entiauspe-Neto & Loebmann 2019 argued that Wiest 1978 constitutes a proper publication and thus has priority over Dixon et al. 1993. Habitat: partly arboreal (Harrington et al. 2018). |
| Etymology | “The subspecies name is derived from the Greek words ‘leuco’ meaning white and ‘metapon’ meaning forehead or front”. However, there exists no word ‘metapon’ in classical Greek! This term is clearly a misspelling of the noun μέτωπον, metopon, ‘forehead’, combined with λευκός, leukos, ‘white’. This nomen should therefore be considered as an “arbitrary combination of letters” (Article 11.3) and kept unmodified (Bernal & Dubois 2023). |
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