Orcaella brevirostris
Scientific Name: Orcaella brevirostris, English Name: Irrawaddy dolphin , Local Name: Iraboti dolphin (ইরাবতি ডলফিন); Family: Delphinidae
Physeter macrocephalus
Scientific Name: Physeter macrocephalus, English Name: Sperm whale, Local Name: Sukranu Timi (শুক্রানু তিমি); Family: Physeteridae
Balaenoptera physalus
Scientific Name: Balaenoptera physalus, English Name: Fin whale, Local Name: Timi (তিমি), Timi Mach (তিমি মাছ); Family: Balaenopteridae
Balaenoptera brydei
Scientific Name: Balaenoptera brydei, English Name: Bryde’s whale, Local Name: Bridis timi (ব্রিদিশ তিমি), Timi (তিমি); Family: Balaenopteridae
Nautilus pompilius
Scientific Name: Nautilus pompilius, English Name: Emperor nautilus, Pearly nautilus, Local Name: Sadok (সাদক), Boita hock (বৈটা হুক), Mukta shamuk (মুক্তা শামুক); Family: Nautilidae
Onchidium typhae
Scientific Name: Onchidium typhae, English Name: Mangrove slug, Local Name: Chatt (চাট); Family: Onchidiidae
Platevindex tigrinus
Scientific Name: Platevindex tigrinus, English Name: Mangrove slug, Local Name: Chatt (চাট); Family: Onchidiidae
Peronina tenera
Scientific Name: Peronina tenera, English Name: Mangrove slug, Local Name: Chatt (চাট); Family: Onchidiidae
Phyllidiella phiphiensis
Scientific Name: Phyllidiella phiphiensis, English Name: Not Known, Local Name: Sea Slug (সী স্ল্যাগ); Family: Phyllidiidae