Euchemotrema

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Euchemotrema
Euchemotrema fraternum
Euchemotrema fraternum
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Pulmonata
Suborder: Eupulmonata
Infraorder: Stylommatophora
Parvorder: Sigmurethra
Superfamily: Helicoidea
Family: Polygyridae
Genus: Euchemotrema
Archer 1939

Euchemotrema is a genus of small land snails, usually about 8 to 11 mm in diameter (about 3/8 inch). They are brown with a velvety surface, similar to that of Stenotrema, and, in fact, this genus is sometimes combined into Stenotrema. [1] These snails typically have a less complex aperture than Stenotrema: "without a tooth within the outer arc of the lip and with no notch in the basal lip". [2] There are also peculiarities of the male anatomy that separate the two genera.

Euchemotrema is widely distributed in eastern and central North America.

This genus includes the following species and subspecies: [1] [3] [4]

  • Euchemotrema cheatumi (R. W. Fullington, 1974)
  • Euchemotrema fasciatum (Pilsbry, 1940)
  • Euchemotrema fraternum (Say, 1824)
  • Euchemotrema fraternum montanum (Archer, 1939)
  • Euchemotrema hubrichti (Pilsbry, 1940)
  • Euchemotrema leai (Binney, 1841)
  • Euchemotrema leai aliciae (Pilsbry, 1893)
  • Euchemotrema wichitorum (Branson, 1972)


[edit] References

  1. ^ a b Pilsbry, Henry A. 1940. Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(2): 675-688.
  2. ^ Pilsbry, Henry A. 1940. Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(2): 675.
  3. ^ [1] Euchemotrema at ITIS (Integrated Taxonomic Information System); accessed 18 Jan. 2008.
  4. ^ [2] Euchemotrema at ZipcodeZoo; accessed 18 Jan. 2008.