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.
Proud Globe
(Say, 1821)
Mesodon elevatus
Class:
Order:
Family:
Gastropoda
Stylommatophora
Polygyridae

ANSP 348592
Ecological Information
Native/Inavsive:
Native
Nature Serve Conservation Status:
G5: Secure
Median Size:
18
Height:
Width:
22
Taper:
0.2
Taxonomic Information
Helix elevata
Original Combination:
elevata = elevated [latin]; refering to the elevated spire of its shell.
Etymology
Original Description:
Shell pale horn colour, spire elevated; whirls seven, regularly rounded; umbilicus none; aperture somewhat angulated; labrum dilated, reflected, pure white, at base adpressed to the body whirl, abruptly narrowed on the inner edge beneath the middle, and continuing thus narrowed to the superior termination, leaving a projecting angle behind the middle; labium with a large, robust, very oblique, sub-arquated, pure white tooth.
Greatest breadth, 7/8 of an inch. Column, 9/16.
Found rather common in the vicinity of Cincinnati, Ohio, it seems to be distantly related to thyroidus, by the tooth on the labium, but this tooth is much more robust; it differs more essentially by the much more elevated spire, and by the superior half of the dilated lip being abruptly narrowed so as to form a prominent angle near the middle. It is also a much thicker shell.
Original Description Citation:
Say, T. (1821). Description of univalve shells of the United States. Journal of the Academy of Natural Sciences of Philadelphia. 2(1): 149-179.
Citations
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