Xenodon dorbignyi

{{speciesbox

| image = Lystrophis dorbignyi.jpg

| image_caption =

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author1=Cacciali, P. |author1-link=species:Pier Cacciali |author2=Carreira, S. |author2-link=species:Santiago Carreira |author3=Giraudo, A. |author3-link=species:Alejandro Raúl Giraudo |author4=Montero, R. |author4-link=species:Ricardo Montero |author5=Scott, N. |author5-link=species:Norman J. Scott |date=2019 |title=Xenodon dorbignyi |volume=2019|page=e.T15183361A15183370|url=https://www.iucnredlist.org/species/15183361/15183370|access-date=20 November 2021}}

| genus = Xenodon

| species = dorbignyi

| authority = (Bibron, 1854)

| synonyms = *Heterodon dorbignyi
{{small|Bibron, 1854}}

Lystrophis dorbignyi
{{small|— Cope, 1885}}
Xenodon dorbignyi
{{small|— Zaher et al., 2009}}

| synonyms_ref =

}}

Xenodon dorbignyi, the South American hognose snake, is a species of snake in the family Colubridae. The species is native to southern South America. There are four recognized subspecies.

Etymology

The specific name, dorbignyi, is in honor of French naturalist Alcide d'Orbigny.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. {{ISBN|978-1-4214-0135-5}}. (Lystrophis dorbignyi, p. 74).

Geographic range

X. dorbignyi is found in Argentina, southern Brazil, Paraguay, and Uruguay.{{EMBL species|genus=Xenodon |species=dorbignyi}}

Habitat

The preferred natural habitats of X. dorbignyi are forest and grassland, both with sandy soil.

Description

X. dorbignyi may attain a total length of {{cvt|56|cm|in}}, including a tail {{cvt|8|cm}} long.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. (Lystrophis dorbignyi, pp. 151–152). It resembles the sympatric venomous snake Bothrops alternatus.

Diet

X. dorbignyi preys upon insects, amphibians, and lizards.

Reproduction

X. dorbignyi is oviparous.

Subspecies

Four subspecies are recognized as being valid, including the nominotypical subspecies.

Xenodon dorbignyi chacoensis {{small|(Lema, 1994)}}
Xenodon dorbignyi dorbignyi {{small|(Bibron, 1854)}}
Xenodon dorbignyi orientalis {{small|(Lema), 1994)}}
Xenodon dorbignyi uruguayensis {{small|(Lema, 1994}}

Nota bene: A trinomial authority in parentheses indicates that the subspecies was originally described in a genus other than Xenodon.