Lyogyrus bakerianus

Lyogyrus bakerianus
Extinct
Presumed Extinct (NatureServe)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Amnicolidae
Genus: Lyogyrus
Species:
L. bakerianus
Binomial name
Lyogyrus bakerianus
(Pilsbry, 1917)
Synonyms
  • Amnicola bakeriana Pilsbry, 1917

Lyogyrus bakerianus is a species of very small freshwater snail which has an operculum, an aquatic prosobranch gastropod mollusc in the family Amnicolidae.

Description

The length of the shell attains 4.3 mm, its diameter 2.7 mm.[citation needed]

(Original description) The thin shell is umbilicate, turrito-conic and contains five whorls. It is whitish-corneous, exhibiting some translucency. It displays unevenly developed striations, prominent and closely spaced in some areas, while weaker and sparser in others. The summit is notably obtuse, resembling Amnicola limosus, with the initial whorl being nearly planorboid. Subsequent whorls are consistently and strongly convex. The aperture is very briefly ovate, almost round, with its length approximately 2.5 times shorter than the shell's length. The peristome is thin and separated from the preceding whorl for a short distance.

Distribution

This species occurs at the Oneida Lake, New York, USA.[citation needed]

References

  1. ↑ NatureServe. "Lyogyrus bakerianus". NatureServe Explorer. Arlington, Virginia. Retrieved 5 April 2026.
  2. ↑ Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O (eds.). "Lyogyrus bakerianus (Pilsbry, 1917)". MolluscaBase. World Register of Marine Species. Retrieved 12 April 2026.
  3. ↑ Pilsbry, H.A. (1917). "Amnicolidae from Oneida Lake, N.Y." The Nautilus. 31 (2): 45–46. Retrieved 23 January 2025. Public Domain This article incorporates text from this source, which is in the public domain.