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.
Dusky Button
(W. G. Binney, 1857)
Mesomphix capnodes
Class:
Order:
Family:
Gastropoda
Stylommatophora
Gastrodontidae
ANSP 117471
Ecological Information
Native/Inavsive:
Native
Nature Serve Conservation Status:
G5: Secure
Median Size:
20
Height:
Width:
31
Taper:
0.3
Taxonomic Information
Helix kopnodes
Original Combination:
kopnodes = peppy (greek)
Etymology
Original Description:
Shell depressed-globose, wrinkled, below smooth; spire short, depressed; suture moderate; whorls five, rapidly increasing, the last very ventricose and large, sometimes marked with coarse revolving lines; aperture large, round, lip simple, acute, ends approached, joined by a slight and deep umbilicus.
It is a much larger and more globose shell than H. fuliginosa, Binney, with a smaller umbilicus, more rounded and larger aperture, and more ventricose body whorl; its color is also lighter. The revolving lines are present in four out of six specimens before me.
Original Description Citation:
Binney, W.G. (1857). Notes on American land shells. No. 2. Proceedings of the Academy of Natural Sciences of Philadelphia, 9: 183-193., available online at https://www.biodiversitylibrary.org/page/6330449
page(s): 187
Citations
-
-
-