Malacology
Malacology is the study of mollusks. This includes animals like octopus, snails, slugs, and clams. It is the second largest phylum of animals, making them one of the most successful groups on the planet. There are over 80,000 described species of mollusks with many more left to be discovered. Mullusca is composed of 8 recognized classes including Cephalopoda, Gastropoda, Polyplacophora, Scaphapoda, Monoplacophorans, the Aplacophorans, Caudofoveata and Solenogastres, and Bivalvia.
Smooth Button
(Pilsbry, 1900)
Mesomphix perlaevis
Class:
Order:
Family:
Gastropoda
Stylommatophora
Gastrodontidae
ANSP 77737 [lectotype]
Ecological Information
Native/Inavsive:
Native
Nature Serve Conservation Status:
G4: Apparently Secure
Median Size:
11.5
Height:
Width:
19
Taper:
0.3
Taxonomic Information
Omphalina laevigata perlaevis
Original Combination:
perlaevis = left "latin"
Etymology
Original Description:
Whorls more convex beneath than in typical Iaevigata, the last whorl much smoother above, not rib-striate, its width at the aperture (measured above) less than one-third the diameter of the shell. Aperture rounded-lunate, almost as high as wide. Alt. 9 1/2, diam. 17 mm. This is from Tallassee ford of the Little Tennessee river, Monroe county, Tenn.
Original Description Citation:
Pilsbry, H. A. (1900). Mollusca of the Great Smoky Mountains. Proceedings of the Academy of Natural Sciences of Philadelphia. 52: 110-150., available online at https://www.biodiversitylibrary.org/page/24693990
page(s): 135
Citations
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