Hydrops triangularis

{{Short description|Species of snake}}

{{Speciesbox

| image = Hydrops triangularis.jpg

| status = LC | status_system = IUCN3.1

| status_ref = {{cite iucn |author1=Nogueira, C. de C. |author1-link=Cristiano de Campos Nogueira |author2=Gonzales, L. |author2-link=species:Lucindo Gonzales Álvarez |author3=Gagliardi, G. |author3-link=species:Giussepe Gagliardi-Urrutia |author4=Almendáriz, A. |author4-link=Ana Almendáriz |author5=Schargel, W. |author5-link=Walter E. Schargel |author6=Rivas, G. |author6-link=Gilson A. Rivas |author7=Murphy, J. |year=2019 |title=Hydrops triangularis |volume=2019 |page=e.T176819A44950510 |doi=10.2305/IUCN.UK.2019-3.RLTS.T176819A44950510.en |access-date=20 September 2022}}

| genus = Hydrops

| species = triangularis

| authority = (Wagler, 1824)

| synonyms = *Elaps triangularis
{{small|Wagler, 1824}}

  • Hydrops triangularis bassleri
    {{small|Roze, 1957}}
  • Hydrops triangularis bolivianus
    {{small|Roze, 1957}}
  • Hydrops triangularis fasciatus
    {{small|Roze, 1957}}
  • Hydrops triangularis neglectus
    {{small|Roze, 1957}}
  • Hydrops triangularis venezuelensis
    {{small|Roze, 1957}}

| synonyms_ref =

}}

Hydrops triangularis, commonly known as the water false coral snake, the triangle water snake or triangle watersnake, and the water coral, is a species of snake in the subfamily Dipsadinae of the family Colubridae. The species is native to northern South America and the Amazon Basin. There are no subspecies that are recognized as being valid.

Geographic range

Hydrops triangularis is found in Venezuela, Trinidad and Tobago, Guyana, Suriname, French Guiana, Colombia, Brazil, eastern Ecuador, eastern Peru, and northern Bolivia.

Habitat

The preferred natural habitat of Hydrops triangularis is freshwater wetlands in forest and savanna, at altitudes from sea level to {{cvt|500|m|ft}}, but it may also tolerate brackish water.

Description

Hydrops triangularis reaches a maximum size of about {{convert|78|cm|in|abbr=on}}. It has smooth dorsal scales, which lack apical pits, and are arranged in 15 rows throughout the length of the body.

Diet

Hydrops triangularis feeds on eels (especially synbranchids){{cite web |first=Kayla-Marie |last=Stuart |url=https://sta.uwi.edu/fst/lifesciences/sites/default/files/lifesciences/documents/ogatt/Hydrops_triangularis%20-%20Water%20False%20Coral%20Snake.pdf |title=Hydrops triangularis (Water False Coral Snake) |work=The Online Guide to the Animals of Trinidad and Tobago |publisher=University of West Indies |year=2016 |access-date=20 September 2022}} and other freshwater fishes{{cite book | author=Boos, Hans E.A. | title=The Snakes of Trinidad and Tobago |location=College Station, Texas | publisher=Texas A&M University Press | year=2001 |isbn=1-58544-116-3}} (especially elongated species).

Reproduction

Hydrops triangularis is oviparous.

References

{{Reflist|refs=

{{NRDB species |genus=Hydrops |species=triangularis |access-date=20 September 2022}}

}}

Further reading

  • {{cite journal |last1=Albuquerque |first1=N.R. |author1-link=species:Nelson Rufino de Albuquerque |last2=De Lema |first2=T. |author2-link=species:Thales De Lema |title=Taxonomic revision of the Neotropical water snake Hydrops triangularis (Serpentes: Colubridae) |journal=Zootaxa |date=2008 |volume=1685 |pages=55–66}}
  • Boulenger GA (1894). Catalogue of the Snakes in the British Museum (Natural History). Volume II., Containing the Conclusion of the Colubridæ Aglyphæ. London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xi + 382 pp. + Plates I–XX. (Hydrops triangularis, p. 187).
  • Freiberg M (1982). Snakes of South America. Hong Kong: T.F.H. Publications. 189 pp. {{ISBN|0-87666-912-7}}. (Hydrops triangularis, p. 100).
  • Wagler J (1824). In: Spix J (1824). Serpentum Brasiliensum species novae ou histoire naturelle des espèces nouvelles de serpens, recueillies et observées pendant le voyage dans l'intérieur du Brésil dans les années 1817, 1818, 1819, 1820, exécuté par ordre de sa Majesté le Roi de Baviére. Munich: F.S. Hübschmann. viii + 75 pp. + Plates I–II, IIa, IIb, III–XXVI. (Elaps triangularis, new species, pp. 5–6 + Plate IIa, [figure 2]). (in Latin).
  • {{cite book |last1=Wagler |first1=J. |title=Natürliches System der Amphibien, mit vorangehender Classification der Säugthiere und Vögel. Ein Beitrag zur vergleichenden Zoologie |date=1830 |publisher=J.G. Cotta |location=Munich, Stuttgart & Tübingen}} vi + 354 pp. + one plate. (Hydrops triangularis, new combination, p. 170). (in German and Latin).

{{Taxonbar|from=Q3008006}}

Category:Hydrops

Category:Reptiles of Bolivia

Category:Snakes of Brazil

Category:Reptiles of Colombia

Category:Reptiles of Ecuador

Category:Reptiles of Guyana

Category:Reptiles of French Guiana

Category:Reptiles of Peru

Category:Reptiles of Suriname

Category:Reptiles of Trinidad and Tobago

Category:Reptiles of Venezuela

Category:Taxa named by Johann Georg Wagler

Category:Reptiles described in 1824

Category:IUCN Red List data deficient species

{{Dipsadinae-stub}}