The rostral scale is elongated vertically and the snout is upturned, similar to the hog-nosed pitvipers of the genus Porthidium.

[9] Found only in Argentina in the provinces of Buenos Aires, Catamarca, Córdoba, Chubut, La Pampa, La Rioja, Mendoza, Neuquén, Río Negro, San Juan, San Luis, Santa Cruz and Tucumán.

[4] The type locality was first listed as "northern Argentina" and later emended to "province of Mendoza" Campbell and Lamar (1989).

[2] The geographic range of Bothrops ammodytoides extends to 47° S Latitude, which may make it the world's southernmost snake.

Found mostly in sandy, rocky areas, including coastal dunes, steep riverbanks and salt flats.