| 词条 | Punctum randolphi |
| 释义 |
| name = Punctum randolphi | regnum = Animalia | image = Randolphi1.jpg | image_caption = Dorsal, ventral, and apertural views of a shell of Punctum randolphi, CM85566, Scale bar is 1 mm. | phylum = Mollusca | classis = Gastropoda | unranked_superfamilia = clade Heterobranchia clade Euthyneura clade Panpulmonata clade Eupulmonata clade Stylommatophora | superfamilia = Punctoidea | familia = Punctidae | genus = Punctum | species = P. randolphi | binomial = Punctum randolphi | binomial_authority = Dall, 1895 }} Punctum randolphi is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Punctidae, the dot snails. Shell descriptionThe 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] DistributionPunctum randolphi is found in North America, in British Columbia, Washington, Oregon, and Idaho. References1. ^Pilsbry H.A. 1948. Land Mollusca of North America (Northof Mexico). The Academy of Natural Sciences of Philadelphia,Monographs, 3, vol. 2 part 2: 521-1113. {{Taxonbar|from=Q7260042}}{{Punctidae-stub}} 2 : Punctidae|Gastropods described in 1895 |
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