Trilobopsis

Trilobopsis is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae.

Trilobopsis
Three views of a shell of Trilobopsis loricata
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Superfamily:
Helicoidea
Family:
Polygyridae
Genus:
Trilobopsis

Pilsbry, 1939

Distribution

The distribution of this species is restricted to Oregon and California, USA.

Description

The shells of species in this genus are somewhat globular and about 5 to 8 mm in diameter (1/4 to 3/16 inch).

Snails in this genus are distinguished from related snails on the basis of their reproductive anatomy.[1]

Species

Species in the genus Trilobopsis include:[1][2]

  • Trilobopsis loricata (Gould, 1846)
    • Trilobopsis loricata lowei (Pilsbry, 1925)
    • Trilobopsis loricata mariposa Pilsbry, 1940
    • Trilobopsis loricata nortensis (Berry, 1933)
    • Trilobopsis loricata perforata Pilsbry, 1940
    • Trilobopsis loricata sonomaensis (Hemphill, 1911)
  • Trilobopsis penitens (Hanna & Rixford, 1923)
  • Trilobopsis roperi (Pilsbry, 1889)
  • Trilobopsis tehamana (Pilsbry, 1928)
  • Trilobopsis trachypepla (Berry, 1933)

References
  1. Pilsbry, Henry A. 1940. Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(2): 778-789.
  2. Trilobopsis at ITIS (Integrated Taxonomic Information System); accessed 13 Jan. 2008.


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