Ancotrema
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| Ancotrema | ||||||||||||||||||||
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 Ancotrema sportella from W. G. Binney, 1878 [1]
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Ancotrema is a genus of land snail in the family Haplotrematidae, although it is sometimes considered to be a subgenus of Haplotrema. Haplotrema and Ancotrema can not be distinguished on the basis of their shells, but rather only in terms of their detailed internal anatomy. [3]
The genus Ancotrema contains the following species: [4] [5]
- Ancotrema hybridum (Ancey, 1888); Oregon lancetooth
- Ancotrema sportella (Gould, 1846); beaded lancetooth
- Ancotrema voyanum (Newcomb, 1865); hooded lancetooth
- Ancotrema zopherum Roth, 1990: dusky lancetooth
[edit] References
- ^ Binney, William G. (1878). The Terrestrial Air-Breathing Mollusks of the United States and Adjacent Territories of North America. Vol. 5 (plates). Bull. Mus. Comparative Zool., Harvard. Plate 22.
- ^ Baker, Horace B. 1931. Proc. Acad. Nat. Sci. Philadelphia 82: 405-409.
- ^ Pilsbry, Henry A. (1946). Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 2(1): 225-230.
- ^ [1] Integrated Taxonomic Information System (ITIS) taxonomic database
- ^ [2] Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online).
