The Transcaucasian ratsnake (Zamenis hohenackeri), also commonly known as the Gavand snake,[1] is a species of nonvenomous ratsnake in the family Colubridae. The species is native to Western Asia and the Middle East. There are three recognized subspecies.
The specific name, hohenackeri, is in honor of Rudolph Friedrich Hohenacker, who was a Swiss missionary, physician, and naturalist.[2]
Z. hohenackeri is found in Armenia, Azerbaijan, Georgia, Iran, Iraq, Israel, Lebanon, southwestern Russia, Syria, and Turkey.
Z. hohenackeri may attain a total length of 65cm (26inches), which includes a tail 11cm (04inches) long. Dorsally, it is gray with four alternating series of dark brown spots. Ventrally, it is reddish or yellowish, marbled or spotted with gray. On the head, there is a diagonal black streak from the eye to the corner of the mouth, and a vertical black line below the eye.[3]
Z. hohenackeri is found in mountainous areas, at altitudes of, in a variety of habitats, from dry to wet, including agricultural areas.
Z. hohenackeri is terrestrial and diurnal.
Z. hohenackeri is oviparous. Clutch size is 3–7 eggs.
Three subspecies are recognized as being valid, including the nominotypical subspecies.
A trinomial authority in parentheses indicates that the subspecies was originally described in a genus other than Zamenis hohenackeri.