Macrovipera schweizeri

Macrovipera schweizeri is a species of venomous snake in the family Viperidae. The species is endemic to the Cyclades Archipelago in the Aegean sea. No subspecies are currently recognized.
Etymology.
The specific name, "schweizeri", is in honor of Swiss herpetologist Hans Schweizer (1891–1975).
Description.
"Macrovipera schweizeri" grows to an average total length (including tail) of , with a maximum of .
Geographic range.
"Macrovipera schweizeri" is found on the Greek islands of the Cyclades Archipelago in the Aegean Sea: Milos and the three smaller, adjacent islands of Siphnos, Kimolos and Poliaigos. The type locality is given as ""Insel Milos" ".
Conservation status.
This species, "M. schweizeri", is classified as Endangered (EN) according to the IUCN Red List of Threatened Species with the following criteria: B1ab(iii,v) (v3.1, 2001). This indicates that the extent of its occurrence within its geographic range is estimated to be less than 5,000 km² (1,930 sq mi), that its populations are severely fragmented or known to exist at no more than five locations. Furthermore, a continuing decline is observed, inferred or projected in the area, extent and/or quality of habitat, as well as the number of mature individuals.
So listed because its extent of occurrence is, in fact, not much greater than 100 km² (39 sq mi) – it is known from only four small islands. There is continuing decline in the extent and quality of its habitat, and it is experiencing a decline in the number of mature individuals due to persecution and over-collecting. Year assessed: 2009.
It is also listed as strictly protected (Appendix II) under the Berne Convention.
Venom.
It is narrated by G.A. Boulenger in his book "The Snakes of Europe" that "Dr. de Bedriaga observed this much dreaded snake, the bite of which is probably as bad as that of its Indian ally, the Daboia, "Vipera russelli" ". It is probable that the snake he assumed was "Macrovipera lebetina" is in fact the Milos Viper.