Lake Tanganyika is an African Great Lake. It is the second-oldest freshwater lake in the world, the second-largest by volume, and the second-deepest, in all cases after Lake Baikal in Siberia. It is the world's longest freshwater lake. The lake is shared among four countries—Tanzania, the Democratic Republic of the Congo (DRC), Burundi, and Zambia, with Tanzania (46%) and DRC (40%) possessing the majority of the lake. It drains into the Congo River system and ultimately into the Atlantic Ocean.
The northern bog lemming is a small North American lemming. It is one of two species in the genus Synaptomys, the other being the southern bog lemming.
Bulinus is a genus of small tropical freshwater snails, aquatic gastropod mollusks in the family Bulinidae, the ramshorn snails and their allies.
Helix pomatia, common names the Roman snail, Burgundy snail, or escargot, is a species of large, air-breathing stylommatophoran land snail native to Europe. It is characterized by a globular brown shell. It is an edible species. Helix pomatia commonly occurs synanthropically throughout its range.
Bermuda land snails, scientific name Poecilozonites, are an endemic genus of pulmonate land snail in the family Gastrodontidae. 12 species are known from the fossil record, and 4 of these species survived into modern times, but due to the highly negative effects of human development, the extant species has been reduced down to only bermudensis and circumfirmatus.
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as only consisting of living members kept in captivity or as a naturalized population outside its historic range. Classification requires exhaustive surveys conducted within the species' known habitat with consideration given to seasonality, time of day, and life cycle. Once a species is classified as EW, the only way for it to be downgraded is through reintroduction.
Oxychilus draparnaudi, or Draparnaud's glass snail, is a species of small land snail, a terrestrial pulmonate gastropod mollusc in the family Oxychilidae, the glass snails.
Anguispira picta, common names painted snake-coiled forest snail and painted tigersnail, is a rare species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disc snails.
The fog shrew is a species of mammal in the family Soricidae. It is endemic to northern California and Oregon in the United States.
Bellamya constricta is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Viviparidae.
Charpentieria is a genus of small, very elongate, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Clausiliidae, the door snails, all of which have a clausilium.
Partula is a genus of air-breathing tropical land snails, terrestrial pulmonate gastropod mollusks in the family Partulidae.
Charpentieria ornata is a species of small, very elongate, air-breathing land snail, terrestrial pulmonate gastropod mollusks in the family Clausiliidae, the door snails, all of which have a clausilium.
Siciliaria crassicostata is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Clausiliidae, the door snails, all of which have a clausilium.
Ba humbugi is the only species and therefore the type species in the genus Ba, a genus of land snail, belonging to the family Charopidae. Both the genus and the species were named by the American malacologist Alan Solem. The genus is endemic to the Fijian island of Viti Levu, and B. humbugi is an endangered species.
