Zatsuekisen (Miscellaneous Harbour Ships) (Kidosentei-Steam Boats/Motor Boats) Kyunansen (Salvage Ships)๖/Kyunansen ken Eisen (Salvage Tugs): Over 600t Eisen (Tugs) : 300t, 150t, 100t Fusetsutei Gata (Minelayer Type)๖ Kusentei Gata (Sub-chaser Type)๖ Eisen ken Kotsusen (Tugs and Communication Ships) : 300t, 150t, 100t Vedette Gata (Vedette Type)๕ Fusetsutei Gata (Minelayer Type)๖ Kusentei Gata (Sub-chaser Type)๖ Kotsusen (Communication Ships)๖ Kansai-suiraitei Gata/Suiraitei Gata/Vedette Gata (Vedette Type)๕ Naikasiki Kayo Tokugata (Small River Gunboats)๕ Kotsusen ken Eisen (Communication Ships and Tugs): 60t, 20t Kansai-suiraitei Gata/Suiraitei Gata (Vedette Type)๕ Kotsusen ken Kansokusen (Communication and Observatory Ships)๖ Hikoki Kyunansen (Aircraft Rescue Boats) : 300t, 200t, 150t Naikatei (Motor Boats):17m, 15m, 12m, 11m, Under 9m, High Speed Craft Hotei Gata (Gunboat Type)๖ Kansai-suiraitei Gata/Suiraitei Gata (Vedette Type)๕ Kusentei Gata (Sub-chaser Type)๕ Gyorai-tsuijo Gata (Torpedo Recovery Boat Type)๖ Gyoraitei Gata (Motor Torpedo Boat Type)๖ Gyosen Gata (Fishing Boat Type)๖ Launch Gata (Launch Type)๕ Chokan-tei/Sireikan-tei (Commander Crafts) :15m (Totei-Oarsj Launches (with an engine)๕ Naika Launch (Motor Launches) :12m Cutters: 9m, 7m, 3.5m (Hasike Gata: Barge type) Hirazoko Gata (Plane Bottom Type)๖ Yochts๖ (Zasshusen-Miscellaneous Ships) Naika Temmasen (Motor Sampans) : 15m, 12m, 10m, 6m Unkasen Gata (Barge Type)๕ Temmasen (Sampans): 12m, 10m, 8m, 6m Yocht Gata (Yocht Type)๕ Unkasen (Barges) Chaland Gata (Chaland Type) : Load 200t, 100t, 50t Daruma Gata (Western Type): Load 200t, 100t, 50t Dambei Gata (Japanese Type): Load 30t Tokugata (Special Type) : 14m, 10m Hasike Gata (Lighter Type)๖ Mokuzo (Wooden Type) ๖: 15m with engine Tokugata-unkasen (Landing Crafts)๖ Hikoki-umpansen (Aircraft Freighters) Gyorai-umpansen (Torpedo Freighters) Gyorai-sagyotei (Torpedo Workboats)๖ Ryoshoku-haikyutei/-sen ๖ (Food Supply Crafts/Ships): 15m Suisen (Water Carriers): Load 250t, 150t, 100t, 50t, 30t Juyusen (Fuel Oil Carriers): Load 300t, 150t Keishitsuyusen (Light Oil Carriers) : Load 200t, 100t, 50t Junkatsuyusen (Lube Oil Carriers): Load 100t, 50t Kihatsuyu-umpansen/Kihatsuyusen (Gasoline Carriers)๕ Juyu-bunrisen (Heavy Oil Separation Ships)๖ Kijukisen (Floating Cranes) : Lift over 75t, 50t, 30t, 15t Kijuki-daisen (Crane Barges)๖ Shunsetsusen (Dredgers) Bucket Type Dipper Type Priestman Type Doroukesen (Hopper Barges): Load 50x3.3m2, 35x3.3m2, 20x3.3m2, 8x3.3m2 Gansaisen (Rock Breakers) Sankosen (Drilling Ships)๖ Kyosen (Pontoons) Ukisambashisen/Ukisanbashi (Floating Piers)๖ Hyotekisen (Target Ships) Ogata (Large Type)๖ Tokugata (Special Type)๖ Dai-1-shu-hyoteki (Target Pontoons) Gyorai-hyotekiro (Torpedo Target Derricks) Gyorai-hyotekisen (Torpedo Target Ships) Kosakusen (Repair Ships)๖ Fusenkyo (Floating Drydocks) Sokuryosen (Hydrographical Survey Ships)๖ Sokuryosen ken Kotsusen (Hydrographical Survey and Communication Ships)๖ Sokuryosen ken Kaiyo-kansokusen (Hydrographical Survey and Oceanographic Observatory Ships)๖ Sokuryotei (Hydrographical Survey Crafts) Kassotei (Propelled Crafts)๕ Doryokusen (Power Suply Ships) Jinkaisen (Dumpers) Shokatei (Fire Extinguishing Crafts) Denran-fusetsusen (Controlled Mine Layers) Kaiyo-kansokusen (Oceanographic Observatory Ships) Renshusen/-tei (Training Ships/Crafts) Reitosen (Freezing Carriers) Sensui-sagyotei (Diving Boats) Yusosen (Cargo Ships/Tankers)๖
No marks are divisions set forth in "Zatsuekisen Senshu oyobi Shozoku Teisu-hyo" (The internal order No. 1182 on 31 December 1938 revised by the internal orders Nos.323, 450, 684, 787 and 959 in 1939: List of division and each affiliation quorum of Miscellaneous Harbour Ships)
The divisions with ๖ are found in the naval gazette on and after 7 June 1939.
The divisions with ๕ are found in the naval gazette before 7 June 1939.
Chinsuisen (Balast Ships for Salvage)๕ Under researching