Babr
Encyclopedia
Babr is a genus of amphipod crustacean
s in family Pallaseidae
, endemic to Lake Baikal
. There are 2 species in the genus.
genus Pallasea, which was recently split into several independent genera, including genus Babr.
, inhabiting sandy and sandy-muddy shallows of the lake.
, which some time ago lived in the forests around Baikal
and bared the local name "babr". However, the coloration is not unique and can be seen among other members of the pallaseid
family. Similar to many pallaseids
, Babr species have strongly convex oval eyes and lateral prominences on thoracic segments. In comparison with closely related genus Pallaseopsis the representatives of the genus Babr lack dorso-lateral spines, have longer telson
, which is about as long the last abdomenal segment and differ by some additional characters.
Crustacean
Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...
s in family Pallaseidae
Pallaseidae
Pallaseidae is a family of amphipod crustaceans endemic to Lake Baikal. Some species are also found in the Angara River which flows out of Lake Baikal, and one species is distributed throughout Northern Palearctic...
, endemic to Lake Baikal
Lake Baikal
Lake Baikal is the world's oldest at 30 million years old and deepest lake with an average depth of 744.4 metres.Located in the south of the Russian region of Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast, it is the most voluminous freshwater lake in the...
. There are 2 species in the genus.
Taxonomic history
Previously the species of this genus were a part of another BaikalianLake Baikal
Lake Baikal is the world's oldest at 30 million years old and deepest lake with an average depth of 744.4 metres.Located in the south of the Russian region of Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast, it is the most voluminous freshwater lake in the...
genus Pallasea, which was recently split into several independent genera, including genus Babr.
Distribution and habitat
Both species of the genus are endemic to Lake BaikalLake Baikal
Lake Baikal is the world's oldest at 30 million years old and deepest lake with an average depth of 744.4 metres.Located in the south of the Russian region of Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast, it is the most voluminous freshwater lake in the...
, inhabiting sandy and sandy-muddy shallows of the lake.
Morphology
Body length ranges from about 2 to 3 cm (0.78740157480315 to 1.2 ). Typical dark spots and stripes on the body reminded the authors of the genus of a tigerTiger
The tiger is the largest cat species, reaching a total body length of up to and weighing up to . Their most recognizable feature is a pattern of dark vertical stripes on reddish-orange fur with lighter underparts...
, which some time ago lived in the forests around Baikal
Lake Baikal
Lake Baikal is the world's oldest at 30 million years old and deepest lake with an average depth of 744.4 metres.Located in the south of the Russian region of Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast, it is the most voluminous freshwater lake in the...
and bared the local name "babr". However, the coloration is not unique and can be seen among other members of the pallaseid
Pallaseidae
Pallaseidae is a family of amphipod crustaceans endemic to Lake Baikal. Some species are also found in the Angara River which flows out of Lake Baikal, and one species is distributed throughout Northern Palearctic...
family. Similar to many pallaseids
Pallaseidae
Pallaseidae is a family of amphipod crustaceans endemic to Lake Baikal. Some species are also found in the Angara River which flows out of Lake Baikal, and one species is distributed throughout Northern Palearctic...
, Babr species have strongly convex oval eyes and lateral prominences on thoracic segments. In comparison with closely related genus Pallaseopsis the representatives of the genus Babr lack dorso-lateral spines, have longer telson
Telson
The telson is the last division of the body of a crustacean. It is not considered a true segment because it does not arise in the embryo from teloblast areas as do real segments. It never carries any appendages, but a forked "tail" called the caudal furca is often present. Together with the...
, which is about as long the last abdomenal segment and differ by some additional characters.