Lobosculum

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Lobosculum
LobosculumPustula1.jpg
Three views of a shell of Lobosculum pustula
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Pulmonata
(unranked): clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Superfamily: Helicoidea
Family: Polygyridae
Genus: Lobosculum
Pilsbry, 1930
Species

See text

Lobosculum is a genus (or a subgenus under Polygyra) of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae.

Shell description[edit]

These are among the smallest snails in the Polygyridae, with shell diameters of about 4 to 6 mm (approximately 1/5 inch). The shells of this species usually have a velvety surface, as a consequence of numerous hair-like extensions of the surface covering of the shell, the periostracum.

Distribution[edit]

The known distribution of this species is limited to the United States: along the Gulf of Mexico from Texas to Florida, as well as Georgia, and the Mississippi valley from Arkansas to Indiana.[1]

Species[edit]

This genus includes the following species and subspecies:[1][2][3][4]

References[edit]

  1. ^ a b Pilsbry, Henry A. 1940. Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(2): 607-613.
  2. ^ [1] Lobosculum at ITIS (Integrated Taxonomic Information System); accessed 23 Jan. 2008.
  3. ^ [2] Lee, Harry G. 2007. A Tale of Two Cities; accessed 23 Jan. 2008.
  4. ^ Burch, John B. (1962). How to know the Eastern Land Snails. Wm. C. Brown Co.: Dubuque IA, 214 pp.