Barnacle goose Barnacle goose The barnacle goose ("Branta leucopsis") belongs to the genus "Branta" of black geese, which contains species with largely black plumage, distinguishing them from the grey "Anser" species. Despite its superficial similarity to the brant goose, genetic analysis has shown it is an eastern derivative of the cackling goose lineage. The barnacle goose was first classified taxonomically by Johann Matthäus Bechstein in 1803. "Branta" is a Latinised form of Old Norse "Brandgás", "burnt (black) goose" and the specific epithet is from the Ancient Greek "leukos" "white", and "opsis" "faced". The barnacle goose and the similar brant goose were previously
Polyphemus (crustacean) Polyphemus (crustacean) Polyphemus is a genus of water fleas, and the only genus in the family Polyphemidae. There are two species, "P. exiguus" and "P. pediculus", although allopatric speciation has resulted in a number of cryptic species of "P. pediculus". "Polyphemus exiguus" inhabits open zones in the Caspian Sea, while "Polyphemus pediculus" exists throughout the Holarctic. It lives in diverse conditions, from small ponds to lakes and estuaries such as the Gulf of Saint Lawrence and the Gulf of Finland. It can be found quite far offshore. "Polyphemus" are a predatory genus of water flea. The two species have four