Burnupia

The genus belongs to the family of Burnupia plate screw ( Planorbidae ) and is one in a number of species in Africa ( and perhaps elsewhere ) occurring freshwater snails genus.

Features

It is characterized by a cup-shaped shell and reminds hereby and by their size (up to 10 mm) bit. Ancylus to the European species with which it is not directly related

About special embodiments of the sperm morphology Hodgson et al .. report

Dissemination and lifestyle

Apart from Africa, where the animals occur only south of the Sahara, is sometimes also reported findings from South America. A critical evaluation of whether it is in the news from South America is a really original occurrence outside of Africa or to disappearances or misidentifications, stands out.

The preferred species live on rocky ground. You need oxygen-rich water, which is why they are often limited to the border areas of lakes or on rivers (including waterfalls).

System

The genus was first described in 1912 by Bryant Walker, it is named after the South African malacologists Henry Clifden burnup ( 1852-1928 ).

Outer systematics

Previously we counted the genus Burnupia (as well as Ancylus ) for now defunct family of " Ancylidae ". According to current knowledge, is a monophyletic taxon Burnupia and is relatively insulated from the rest of the cup-shaped snail genera ( Ancylus, Ferrissia, Gundlachia, Laevapex, Hebetancylus ) of the family with whom she thus forms no natural kinship group ..

Inside systematics

Currently, many species are listed. A critical taxonomic revision is made ​​, however. The following is a selection of species:

• Burnupia alta Pilsbry & Bequaert, 1927, demonstrated for the Congo Basin.
• Burnupia caffra Krauss, 1848, proved in South Africa.
• Burnupia crassistriata Preston, 1911, an endemic in the central highlands of Kenya living style, which is classified by the IUCN due to increasing desiccation of waters as threatened.
• Burnupia edwardiana Pilsbry & Bequaert, 1927, detected in Eduardsee (Democratic Republic of Congo).
• Burnupia kempi Preston, 1912, detected in Uganda in 1830 m height.
• Burnupia kimiloloensis Pilsbry & Bequaert, 1927, detected in the Luapula River (Democratic Republic of Congo).
• Burnupia obtusata Walker, 1926, proved in South Africa.
• Melvill & Ponsonby Burnupia stenochorias, 1903, shown in South Africa.
• Burnupia chair manni Martens, 1897, one living in Kenya, Tanzania and Uganda in lakes and rivers you kind also occurs on the edge of Lake Victoria and the Victoria Nile and is classified by the IUCN as threatened.