Mollusca
Crepidula aculeata
(Spiny Slipper Shell)
1. Out of water (Rob Ruzicka)
2. Out of water (Rob Ruzicka)
Size
Recognition Characters
Exterior of shell is rough and spiny. Overall, the shell is moderately low and thin with spiral apex near edge but not projecting. Spines can run in columns. Half of underside of shell is reinforced by a shelly platform.
Color
Outer shell is reddish-brown with spines flecked or tipped with white. Underside of shell is a mottled brown. Platform is glossy white.
Habitat & Depth
Attaches to rocks, other shells, and mangrove roots. Relatively shallow to 10m.
Distribution at GRNMS
Rare at GRNMS. Usually found in shallower water.
Geographic Range
North Carolina to Florida Keys, West Indies and Texas. On west coast California to Chile.
Behavior & Notes
Synonyms
Abbott 2001, Rehder 1981