"Interius" was the earlier reading of "subtus".
P. tuberculata. P. dentata conica tuberculata, postice sima.
Sima was the earlier name in the MS., but was erased by Linnæus.
P. lutea. P. integerrima striata, vertice mucronato inflexo.
P. unguis. P. ovali-oblonga, apice emarginata, mucrone dorsali carinato.
Unguiformis was the intended appellation.
P. testudinaria. P. ovata glaberrima integerrima.
P. rustica. P. integra, striis 50 obtusiusculis.
P. fusca. P. ovata integerrima, striis elevatis, vertice obtuso.
The intended name was cinereo-nigricans.