Nicon aestuariensis
Nicon peruviana
Nicon polaris
Nicon punctata
Nicon tahitanus
Nicon misakiensis
Nicon pictus
Nicon uncinatus
Nicon ehlersi
Nicon moniloceras
Nicon maculata
Nicon pettiboneae
Nicon benhami
Nicon virgini
Nicon abyssalis
Nicon eugeniae
Nicon sinica
Nicon rotunda
Nicon japonicus
Nicon yaquinae
Nicon orensanzi