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.
Tight-Coil Three-Tooth
(Bland, 1876)
Triodopsis vannostrandi
Class:
Order:
Family:
Gastropoda
Stylommatophora
Polygyridae
Ecological Information
Native/Inavsive:
Native
Nature Serve Conservation Status:
G4: Apparently Secure
Median Size:
7.6
Height:
Width:
12.4
Taper:
0.7
Taxonomic Information
Helix Vonnostrandi
Original Combination:
Named for American Malacologist Henry D. Van Nostrand
Etymology
Original Description:
This species is in form and character of the aperture very nearly allied to H. introferens, but is more decidedly costate, more convex at the base, with smaller umbilicus, and without the internal tubercle. It connects introferens and vultuosa with, but is quite distinct distinct from fallax.
The measurements of a specimen with 6 1/2 whorls, are, siam. max. 12 1/2: min. 11. Alt. 7 mill. Of a specimen with 6 whorls; diam. max. 10; min. 8 mill.; alt. 5 mill.
Original Description Citation:
Bland, T. (1876). Notes on certain terrestrial mollusks, with descriptions of a new species of the genus Amphibulima. Annals of the Lyceum of Natural History of New York. 11: 197–200.
Citations
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