http://www.iucnredlist.org/details/282/0
More important is this designation:It is usually terrestrial and larger specimens are cathemeral whilst juveniles are mostly nocturnal. It is viviparous and litters consist of 6-13 small juveniles. It feeds on wild terrestrial vertebrates as well as domestic poultry.
The International Union for Conservation of Nature, the experts, might just know what they are doing.Systems:Terrestrial
In case you want to debate more, usually means by definition: "under normal conditions; generally." Meaning something usually terrestrial spends time on the ground under normal conditions.
