Porthidium nasutum

{{Short description|Species of snake}}

{{Speciesbox

| image = Porthidium nasutum (La Selva Biological Station) 2.jpg

| image_caption = Specimen at La Selva Biological Station, Costa Rica

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Lee, J. |author2=Calderón Mandujano, R. |date=2007 |title=Porthidium nasutum |volume=2007 |page=e.T64344A12772539 |doi=10.2305/IUCN.UK.2007.RLTS.T64344A12772539.en |access-date=20 November 2021}}

| genus = Porthidium

| species = nasutum

| authority = (Bocourt, 1868)

| range_map = Porthidium nasutum distribution.png

| synonyms = * Bothrops nasutus Bocourt, 1868

• Porthidium nasutum – Cope, 1871
• Bothriopsis proboscideus
  Cope, 1875
• Th[anatos]. sutus
  Posada Arango, 1889
• Th[anatophis]. sutus
  – Posada Arango, 1889
• Lachesis brachystoma
  Boulenger, 1896
• Bothrops nasuta – Amaral, 1929
• Trimeresurus nasutus
  – Dunn & Bailey, 1939
• Bothrops nasutus
  – J.A. Peters & Orejas-Miranda, 1970
• Bothriechis nasutus – Savage, 1980
• Porthidium nasutum
  – H.M. Smith & R.P. Smith, 1976

| synonyms_ref = McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, vol. 1. Herpetologists' League. 511 pp. {{ISBN|1-893777-00-6}} (series). {{ISBN|1-893777-01-4}} (volume).

}}

:Common names: hognosed pit viper, hognosed pit viper, rainforest hognosed pit viper,Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. 2 volumes. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. {{ISBN|0-8014-4141-2}}. horned hog-nosed viper.Brown JH. 1973. Toxicology and Pharmacology of Venoms from Poisonous Snakes. Springfield, Illinois: Charles C. Thomas. 184 pp. LCCCN 73-229. {{ISBN|0-398-02808-7}}.

Porthidium nasutum is a pit viper species found in southern Mexico, Central America and northern South America. No subspecies are currently recognized.