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.
Triodopsis Fraudulenta
(Pilsbry, 1894)
Triodopsis fraudulenta
Class:
Order:
Family:
Gastropoda
Stylommatophora
Polygyridae
ANSP 64725 [lectotype]
Ecological Information
Native/Inavsive:
Native
Nature Serve Conservation Status:
G4: Apparently Secure
Median Size:
8.4
Height:
Width:
15.7
Taper:
0.6
Taxonomic Information
Polygyra tridentata fraudulenta
Original Combination:
fraudulenta = fraudulent; likely refering to its similarity to T.tridentata and T. fallax
Etymology
Original Description:
In its typical development this variety is a compact shell of reddish-brown color (varying to white in some localities); the spire is low-convex, composed of six closely coiled whorls, the last being notably deflexed in front and stringly constricted behind the lip. The aperture is strongly constricted behind the lip. The apertire is strongly "dished" or basin-shaped; the outer lip bears a broad tongue-shaped inflected tooth, situated at the postion of the periphery of the shell. The middle of the basal lip bears a small squarish tubercle, shich is often laterally compressed. The pariental wall bears an elevated oblique blade which is typically almost straight and never much curved.
Original Description Citation:
Pilsbry, H. A. (1894). Critical list of mollusks collected in the Potomac Valley. Proceedings of the Academy of Natural Sciences of Philadelphia. 46: 11-31, plate 1.
Citations
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