David
Element
Wildlife
Photography
and Digital
Video Images
_
Amphibians and Reptiles 29 - Aesculapian Snakes 1

AESCULAPIAN
SNAKE Zamenis longissimus
- This snapshot of a retreating Aesculapian
Snake (Il Colubro d'Escalupio)
was taken in Tuscany (Toscana), Italy. This is the
largest European snake, reaching over 6 feet (1.2m) in
length and it is non-poisonous. The small size of the
head, long slender body and rather nondescript markings
are characteristic and this species is welcomed by
farmers as an accomplished rat-catcher, hence the
alternative name of 'Ratsnake'. The comparative size of
the Oak leaves suggests that this snake was not yet fully
grown. There are two closely related species in Italy, Z.
longissimus and the endemic Z. lineata.
These snakes were originally believed to be subspecies of
Elaphe longissima (E.
longissima longissima and E. longissima lineata
but recent genetic studies have clarified the lineage of
European Aesculapian Snakes and they have now been
reclassified as Zamenis longissimus and Z.
lineata respectively.
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Element.