- Nectopyramis thetis
- Nematobrachion boopis
- Nematocarcinus ensifer
- Nematoscelis megalops
- Nemopsis bachei
-
Neoactumnus convexus
Shin-íbotegani
-
Neoliomera demani
Forest-hira-ohgigani
-
Neoliomera insularis
Hira-beniohgigani
-
Neoliomera intermedia
Tsubu-hira-ohgigani
-
Neoliomera pubescens
Benihoshi-hira-ohgigani
-
Neoliomera richteroides
Kiíro-hira-ohgigani
- Neomysis integer
-
Neosarmatium fourmanoiri
Newcaledonia-áshihara-modoki
-
Neosarmatium indicum
Indo-áshihara-modoki
-
Neosarmatium meinerti
Mauritius-áshihara-modoki
-
Neosarmatium punctatum
Minami-áshihara-modoki
-
Neosarmatium rotundifrons
Maru-áshihara-modoki
-
Neosarmatium smithi
Ashihara-modoki
-
Neotroglocarcinus hongkongensis
Shin-sango-yadori-gani
- Neoturris pileata
-
Neoxanthias impressus
Habahiro-shin-ohgigani
-
Neoxanthias michelae
Lubang-shin-ohgigani
-
Neoxanthops cavatus
Hime-úsuha-ohgigani
-
Neoxanthops lineatus
Usuha-ohgigani
-
Neoxanthops quadrilobatus
Usuha-ohgigani-modoki
- Nephrops norvegicus
- Nereis fucata
- Nereis irronata
- Nereis longissima
- Nereis pelagica
- Nereis succinea
- Nereis virens
- Nereis zonata
-
Notonyx vitreus
Alcock-énkougani
-
Notopoides latus
Henderson-ásahigani
-
Notopus dorsipes
Asahigani-modoki
-
Notosceles barnardi
Nokoha-ásahi-modoki
-
Notosceles serratifrons
Nokoha-ásahi
-
Novactaea pulchella
Murasaki-áwatsubu-gani
-
Nucia speciosa
Ibotsubu-kobushi
-
Nursia alata
Hane-kobushi
-
Nursia japonica
Rotsukaku-kobushi
-
Nursia minor
Marumi-rotsukaku-kobushi
-
Nursia plicata
Oh-rotsukaku-kobushi
-
Nursia rhomboidalis
Hishigata-rotsukaku-kobushi
-
Nursilia sinica
Osate-kobushi-modoki
-
Nursilia tonsor
Osate-kobushi
- Nyctiphanes couchi
- Obelia spp
- Obtusoecia obtusata