Aplysia sagamiana Baba, 1949 (original description)
Armina appendiculata Baba, 1949 (original description)
Armina major Baba, 1949 (original description)
Baeolidia fusiformis Baba, 1949 accepted as Limenandra fusiformis (Baba, 1949) (original description)
Bornella japonica Baba, 1949 accepted as Bornella hermanni Angas, 1864 (original description)
Chelidonura inornata Baba, 1949 accepted as Mariaglaja inornata (Baba, 1949) (original description)
Goniodoris felis Baba, 1949 accepted as Pelagella felis (Baba, 1949) (original description)
Gymnodoris subflava Baba, 1949 (original description)
Okenia japonica Baba, 1949 accepted as Bermudella japonica (Baba, 1949) (original description)
Paratritonia Baba, 1949 (original description)
Paratritonia lutea Baba, 1949 (original description)
Polycera japonica Baba, 1949 (original description)