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.
Magazine Mountain Shagreen
(Pilsbry & Ferriss, 1906)
Inflectarius magazinensis
Class:
Order:
Family:
Gastropoda
Stylommatophora
Polygyridae
ANSP 91314 [lectotype]
Ecological Information
Native/Inavsive:
Native
Nature Serve Conservation Status:
G1: Critically Imperiled
Median Size:
7.4
Height:
Width:
14
Taper:
0.4
Taxonomic Information
Polygyra edentata magazinensis
Original Combination:
Etymology
Original Description:
Similar to P. edentata, but more contracted behind the lip, and with the aperture less rounded, more triangular, the lower lip-tooth absent, replaced by a low, wide prominence nearer to the columellar end of the basal lip; scale-like cuticular processes well developed. Alt 7 7 7 6.7 7 6 6 mm. Diam 14 13.5 13.3 13 12.5 12 11.5 " Most of the series of 114 specimens measure from 13 to 14 mm. diameter. All agree in the shape of the aperture and peristome, which varies remarkably little. Magazine Mountain, Logan Co., Ark., in a talus of large rocks under the cliff on the north side of the summit plateau (Ferriss and Pilsbry March 28-30, 1903) . We found a single dead specimen on the south side, near where the road ascends the cliff. The smallest specimens are distinctly angular at the periphery in front.
Original Description Citation:
Pilsbry, H. A. & Ferriss, J. H. (1906). Mollusca of the Ozarkian Fauna. Proceedings of the Academy of Natural Sciences of Philadelphia. 58 (3): 529-567, plates 20-22., available online at https://www.biodiversitylibrary.org/page/24707380
Citations
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