Newtoniellidae is a family of minute sea snails, marine gastropod mollusks or micromollusks in the superfamily Triphoroidea. It contains the following subfamilies :
Brocchinia harasewychi is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.
Brocchinia verheckeni is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.
Gerdiella alvesi is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.
Gergovia petiti is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.
Neoterebra intumescyra is a species of sea snail, a marine gastropod mollusk in the family Terebridae, the auger snails.
Gerdiella is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.
Haplocochlias is a genus of sea snails, marine gastropod mollusks in the family Skeneidae.
Brocchinia is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.
Cerithiella is a genus of minute sea snails, marine gastropod molluscs in the family Newtoniellidae.
Cerithiella pernambucoensis is a species of very small sea snail, a marine gastropod mollusc in the family Newtoniellidae. It was described by de Lima and de Barros, in 2007.
Ancistrobasis zumbii is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.
Acar is a genus of small saltwater clams, marine bivalve mollusks in the family Arcidae, the ark clams.
Anacithara is a genus of sea snails, marine gastropod mollusks in the family Horaiclavidae.
Anacithara biconica is a species of sea snails, a marine gastropod mollusc in the family Horaiclavidae.
Mitromorpha santosi is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.
Neoterebra is a genus of marine snails, gastropod molluscs in the family Terebridae, subfamily Terebrinae.
Gergovia is an extinct genus of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.
Aclis macrostoma is a species of sea snail, a marine gastropod mollusk in the family Eulimidae.
Aclis watsoni is a species of sea snail, a marine gastropod mollusk in the family Eulimidae.
