Edited by I_gotta_rock
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Cup-and-Saucer Snail
Images: 
By I_gotta_rock (edited)
Taxonomy
Cup-and-Saucer Snail
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: clade Caenogastropoda
Family: Calyptraeidae
Genus: Crucibulum
Species: Crucibulum costatum
Author Citation (Say, 1820)
Geological Time Scale
Eon: Phanerozoic
Era: Cenozoic
Period: Neogene
Epoch: Miocene
Stratigraphy
Choptank Formation
Drum Cliff Member
Provenance
Collector: Heather Siple
Date Collected: 07/03/2018
Acquired by: Field Collection
Dimensions
Length: 3.0 cm
Width: 2.7 cm
Height: 1.6 cm
Location
Matoaka Beach
Calvert County
Maryland
United States
Comments
Due to the extremely fragile nature of this specimen, and the species in general, I was loathe to clear out any more of the matrix from the interior of the shell, so bits and pieces of other shells are present. The large central piece is the inner "cup," which attaches to the "saucer" at only a very small point in the tip.
Collected from landslide material in the bay.
Donated to the Delaware Museum of Natural History.
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