Punctum randolphi

Punctum randolphi is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Punctidae, the dot snails.

Punctum randolphi
Dorsal, ventral, and apertural views of a shell of Punctum randolphi, CM85566, Scale bar is 1 mm.
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
Superfamily:
Punctoidea
Family:
Punctidae
Genus:
Punctum
Species:
P. randolphi
Binomial name
Punctum randolphi
Dall, 1895

Shell description

The diameter of the shell of Punctum randolphi is between 1.25 and 1.4 mm wide. The exterior surface has a very faint sculpture of radial striae. The aperture of Punctum randolphi is wide and somewhat oblique. The umbilicus is small and deep.[1]

Distribution

Punctum randolphi is found in North America, in British Columbia, Washington, Oregon, and Idaho.

References
  1. Pilsbry H.A. 1948. Land Mollusca of North America (North of Mexico). The Academy of Natural Sciences of Philadelphia, Monographs, 3, vol. 2 part 2: 521-1113.


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