Chironius laurenti DIXON, WIEST & CEI, 1993
Can you confirm these amateur observations of Chironius laurenti?
Chironius laurenti
Find more photos by Google images search: 
| Higher Taxa | Colubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | Portuguese: Cobra-Cipó |
| Synonym | Chironius dixoni WIEST 1978 Chironius laurenti DIXON, WIEST & CEI 1993: 141 Chironius laurenti — HOLLIS 2006 Chironius laurenti — WALLACH et al. 2014: 161 Chironius laurenti — PINHEIRO et al. 2015 Chironius laurenti — NOGUEIRA et al. 2019 Chironius dixoni — BERNAL & DUBOIS 2023 Chironius dixoni — GUEDES et al. 2023 Chironius laurenti — JADIN et al. 2024 Chironius laurenti — DORADO-RODRIGUES et al. 2025 Chironius dixoni — GÓMEZ-MURILLO et al. 2025 |
| Distribution | Bolivia (Beni, Cochabamba, and Santa Cruz), Brazil (Mato Grosso, Acre) Type locality: Bolivia, Department of Beni, Rio Mamore; restricted to about 23 km west of San Javier, Mamor é River, Department of Beni, Bolivia (ca. 14°35’S, 65°04’W;~170 m above sea level by Sudré et al. 2026. |
| Reproduction | oviparous |
| Types | Holotype: AMNH 101815, adult male. Paratypes (27): AMNH 6778, 101809-814, 101816-819, 101821, 104558; BMNH 1904.10.29.52; CM 2880, 2946-47; FNMH 35580,161509, MZUSP 6407, UMMZ 60744-45,60749,63922 (2 Specimen),64015, USNM 159787. |
| Diagnosis | Diagnosis: this is the only Chironius species with a combination of 12 scale rows at midbody, divided anal plate, 163-181 ventrals, immaculate yellowish subcaudals, dorsum brownish ,32-36 maxillary teeth, 2-10 scale rows in males and 2-6 scale rows in females keeled and a mottled ventrolateral pattern on posterior of body and tail [shortened after DIXON et al. 1993: 142]. Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data. However, these details, e.g. detailed descriptions (about about 1.6 pages) are available for collaborators and contributors. Please contact us if you need any of this material. |
| Comment | Distribution: Map in DIXON et al. 1993: 143. See map in Nogueira et al. 2019. Sudré et al. 2026 restricted C. laurenti to populations distributed throughout the Madeira River Basin and split off the remaining populations into a new species, C. xaraes. See map in Sudré et al. 2026: Fig 9. 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. The holotypes of C. dixoni and C. laurenti are identical. Entiauspe-Neto & Loebmann 2019 argued that Wiest 1978 constitutes a proper publication and thus has priority over Dixon et al. 1993. However, later authors disagree and only accept Dixon et al. 1993 as the authors (e.g. Sudré et al. 2026). C. laurenti nests within C. multiventris in the phylogeny published by Jadin et al. 2024. Habitat: partly arboreal (Harrington et al. 2018). |
| Etymology | Named after Dr. Raymond Ferdinand Louis-Philippe Laurent (1917-2005), a Belgian herpetologist who worked for much of his life in Argentina and started the Herpetology Department, Fondación Miguel Lillo, Tucuman, Argentina (1975). |
| References |
|
| External links |