Location: The Patagonian lancehead
occurs as far south as southern Patagonia, where it is very rare.
The Patagonian lancehead is the southern-most
snake species in the world, occurring practically all the way down
to Tierre del Fuego. A small and elusive pitviper with an upturned
snout, Marks quarry is by no means easy to find in the vast
Patagonian wilderness. Nobody is currently studying this interesting
little pitviper so Mark is accompanied by Monique Halloy, an expert
on its lizard prey, and her student Juan Carlos, since Mark thinks
finding the lizards the snake eats will be the clue to finding the
snake itself. Marcio Martins, a Brazilian pitviper expert, joins
the team because he has always wanted to see a wild Patagonian lancehead
to compare with a related species he has studied in Brazil. The
quest takes the four herpetologists through the expanse of Patagonia,
from inhospitable salt pans to wild-swept coastal beaches, home
to Argentinas penguin and sealion populations.
A close view of the head of a Patagonian
lancehead (Bothrops ammodytoides) note the upturned snout.
||SWIFTS & SPINY
|Liolaemus melanops melanops
||Yellow & green swift
|Liophis poecilogyrus sublineatus
||Dorbigny's hognose snake
||VIPERS & PITVIPERS
Location: Our search for the Patagonian lancehead centered around
Bahia Blanca and Peninsula Valdes in central Patagonia, where
it is also rare.
It's not snow, it's not ice, it's not sand
it's salt ! Mark
O'Shea on an inhospitable Patagonian salt pan.