from the GNU version of the Collaborative International Dictionary of English
- n. A genus of small marine bivalve shells, having a pearly interior.
from The Century Dictionary and Cyclopedia
- n. A genus of acephalous or conchiferous mollusks, formerly referred to the Arcidæ or ark-shells, now made type of the family Nuculidæ.
Sorry, no etymologies found.
This fossil resembles nucula, but it is not pearly in the interior, and its abdominal margin is smooth.
In the fragments brought home Mr. George Sowerby found a nucula, very much resembling some species of South America although not like any from Australia.