N. exuvia. N. sulcata, labiis dentatis, interiore denticulato.
HALIOTIS.
Testa univalvis, patens, convexa. Spira obsoleta, lateralis. Foramina lateralia pervia.
H. Midæ. H. subrotunda, utrinque nitida.
Humana was the intended specific appellation.
H. tuberculata. H. subovata, rugis transversis tuberculatis.
The reference to Lister was an emendation.
H. striata. H. ovata, transversim rugosa, longitudinaliter striata.
No name was attached to either this or any member of the genus, except the first.
H. varia. H. ovata, striis longitudinalibus, majoribus tuberculatis.