Length (mm): 175-212
This shell has about 7 whorls that contribute to a terraced spire. Each whorl has about two prominent axial varices that form sharp ridges extending from the shell. The variaces of lower whorls form a point in the same direction as the apex. This shell also has spiral ridges patterned with coarse knobs. These ridges form large nodules at the lip of the shell. The shell is typically pale yellow to orange or brown with patches of white particularly around the varices and knobs.
South Florida to Brazil
0.6 to 150 meters
Carnivore; They eat bivalves including mussels.
MolluscaBase eds. (2021). MolluscaBase. Cymatium femorale (Linnaeus, 1758). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=225025 on 2021-06-23
Morris, P. A. (1987). A field guide to shells: Atlantic and Gulf coasts and the West Indies (3rd ed.). Houghton Mifflin.
Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (214). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics. https://doi.org/1.116/j.ecoinf.214.8.5.