Sigmoilina carinata
Hofker, 1978
identified by scientist   
Quaternary
Banda, Timor and Arafura Sea

Sigmoilina costata
Schlumberger, 1893
identified by M. Hesemann   
Quaternary
Mediterranean Sea

Sigmoilina grata
(Terquem, 1878)
identified by scientist   
Neogene
Mediterranean

Sigmoilina obesa
Heron-Allen and Earland, 1932
identified by scientist   
Quaternary
Banda, Timor and Arafura Sea

Sigmoilina sigmoidea
(Brady, 1884)
identified by scientist   
Quaternary
off Brazil