Listing
Jan 6, 1989
Jan 6, 1989 Listing
ETWP; Animal Notice of Review; 54 FR 554 579
- Publication type: CNOR
Item 1
FWS Focus
Overview
The fat threeridge is a medium-sized freshwater mussel that can grow to be four inches long (10.2 centimeters). This species has a dark brown to black outer shell with seven to nine horizontal ridges and a bluish-white to light purple inner shell. The left valve of the fat threeridge has two equal-sized teeth, and the right valve has a larger and smaller tooth.
Scientific Name
Amblema neislerii
Common Name
fat three-ridge
fat threeridge
Fat threeridge (mussel)
FWS Category
Clams
Identification Numbers
Timeline
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16 Items