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.
Sawtooth Disc
(Harper, 1881)
Discus bryanti
Class:
Order:
Family:
Gastropoda
Stylommatophora
Discidae

ANSP 84046
Ecological Information
Native/Inavsive:
Native
Nature Serve Conservation Status:
G3: Vulnerable
Median Size:
2
Height:
Width:
5.5
Taper:
1
Taxonomic Information
Patula bryanti
Original Combination:
Likely named for F.W. Bryant who contributed to the discovery of this species
Etymology
Original Description:
Shell broadly and perspectively umbillicate, discoidal, nearly flat above, and deeply excavated below; whorls, five, gradually increasing, regularly ribbed, outer whorl bicarinate; color, light brown; aperture, small, homboidal; peristome, simple, acute, having its extremities united. Greatest width, 6 1/2, least 5 1/2; height, 2; width of umbilicus, 4 1/2 mill. Habitat, found buried deeply under old logs. Locality, Mitchell county North Carolina. Discovered by A. G. Wetherby, F.W. Bryant and Geo. W. Harper. Note.-- The above apecies bears some resemblence to the carinated varieties of the P. perspectiva, and some may consider it a variety of the latter. If it proves to be so, then we are strongly inclined to the opinion that the P. cumberlandiana is only a carinated variety of the P. alternata, as the analogy between the two is very close.
Original Description Citation:
Harper, G.W. (1881). Description of a new species of Patula, and remarks upon a Hyalina. Journal of the Cincinnati Society of Natural History, 4(3): 258-259.
page(s): 258, figs. 1-1a
Citations
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