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Diodora cayenensis
Diodora cayenensis
(Cayenne Keyhole Limpet)
(Cayenne Keyhole Limpet)
1. Out of water (Chris Freeman)
2. Out of water (Chris Freeman)
3. Out of water (Chris Freeman)
Size
Length: 1.5-4.5cm (0.5-1.75")
Recognition Characters
Moderately raised shell with a dumbbell shaped hole is slightly in front of the centrally located apex. Base is broadly oval. Exterior of shell has many rough, radial ribs; every fourth rib is larger.
Color
Exterior of shell is whitish grey. Interior is white.
Habitat & Depth
Attach to rocks, pilings, and other hard substrates.
Distribution at GRNMS
Geographic Range
Maryland south to Brazil
Behavior & Notes
The elongate 2-lobed or dumbbell-shaped hole found in many species of Diodora is the source of the keyhole limpet name.
Synonyms
Diodora alternata
Abbott 2001
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