Punctum minutissimum is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Punctidae, the dot snails.
Shell description The shell of Punctum minutissimum is slightly translucent and pale brown in color. It is 1.1 to 1.3 mm wide, and has 3.5 to 4.5 whorls. The outer shell surface has a sculpture of radial striae, which are obvious under magnification. The underside of the shell has a very wide umbilicus, almost 25% of the shell's width.Burch J. B. (1962). How to Know the Eastern Land Snails. WM. C Brown Co., Dubuque, IA.
Distribution This species occurs in North America, from Maine to Florida, and west to Oregon and New Mexico.Burch J. B. & Jung Y. (1988). "Land Snails of the University of Michigan Biological Station Area". Society for Experimental and Descriptive Malacology, Walkerana 9.
Habitat This small snail lives in damp leaf litter and decaying fallen beech logs. It is often found around polypore and bolete fungi.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.
References
External links
https://web.archive.org/web/20111017080742/http://www.carnegiemnh.org/mollusks/palandsnails/pu_minu.html