[b]Abyssal ships[/b] (深海棲艦, [i]shinkaisei-kan[/i]) are monstrous enemy ships in the [[Kantai Collection]] universe.

Abyssals are characterized by their [[pale skin]], black armor plates, [[glowing eyes|glowing]] [[aqua eyes]], and many [[teeth|toothy]] mouths. Alternate [[glowing|glows]] include [[red eyes|red]], [[yellow eyes|yellow]], and [[blue eyes|blue]].

The weaker versions tend towards being all black armor plates with fish-like forms, while the more powerful, "evolved" forms tend towards being humans with large black metal guns attached. In-between ships tend to have a human part (like just the torso or just the head) leading into metal-skull-crab parts.

Just as player shipgirls take inspiration from real WWII Axis warships, many abyssal boss or event-type characters seem inspired by real-life bases or ships from the Axis or Allied sides. Earlier bosses notably were more Allied (including Port Darwin as [[Seaport Princess]] or [[Isolated Island Oni]] as Wake Island) while more recent bosses are clearly meant to reflect [[dark_persona|dark versions]] of Japanese ships ([[Aircraft Carrier Water Oni]] as "dark [[Shoukaku (kancolle)|]]" or [[Destroyer Princess]] as "dark [[Harusame (kancolle)|]]").

Abyssal ships were designed and illustrated by [[Oguchi]] (regular enemies) and [[Akira (Kadokawa)]] (boss characters & submarines). Most of their model numbers are based on the "Iroha order":[https://en.wikipedia.org/wiki/Iroha].

h4. Common Enemies

* [[I-class Destroyer]] / 駆逐イ級
* [[Ro-class Destroyer]] / 駆逐ロ級
* [[Ha-class Destroyer]] / 駆逐ハ級
* [[Ni-class Destroyer]] / 駆逐ニ級
* [[Ho-class Light Cruiser]] / 軽巡ホ級
* [[He-class Light Cruiser]] / 軽巡ヘ級
* [[To-class Light Cruiser]] / 軽巡ト級
* [[Chi-class Torpedo Cruiser]] / 雷巡チ級
* [[Ri-class Heavy Cruiser]] / 重巡リ級
* [[Nu-class Light Aircraft Carrier]] / 軽母ヌ級
* [[Ru-class Battleship]] / 戦艦ル級
* [[Wo-class Aircraft Carrier]] / 空母ヲ級
* [[Wa-class Transport Ship]] / 輸送ワ級
* [[Ka-class Submarine]] / 潜水カ級
* [[Yo-class Submarine]] / 潜水ヨ級
* [[Ta-class Battleship]] / 戦艦タ級
* [[Re-class Battleship]] / 戦艦レ級
* [[So-class Submarine]] / 潜水ソ級
* [[Tsu-class Light Cruiser]] / 軽巡ツ級
* [[Ne-class Heavy Cruiser]] / 重巡ネ級

h4. Bosses
* [[Armored Aircraft Carrier Oni]] / 装甲空母鬼
* [[Armored Aircraft Carrier Princess]] / 装甲空母姫
* [[Anchorage Oni]] / 泊地棲鬼
* [[Anchorage Princess]] / 泊地棲姫
* [[Floating Fortress (kancolle)|Floating Fortress]] / 浮遊要塞
* [[Southern Ocean Oni]] / 南方棲鬼
* [[Southern Ocean War Oni]] / 南方棲戦鬼
* [[Southern Ocean War Princess]] / 南方棲戦姫
* [[Escort Fortress (kancolle)|Escort Fortress]] / 護衛要塞
* [[Airfield Princess]] / 飛行場姫
* [[Battleship Princess]] / 戦艦棲姫
* [[Seaport Princess]] / 港湾棲姫
* [[Isolated Island Oni]] / 離島棲鬼
* [[Isolated Island Princess]] / 離島棲姫
* [[Aircraft Carrier Oni]] / 空母棲鬼
* [[Aircraft Carrier Princess]] / 空母棲姫
* [[Northern Ocean Princess]] / 北方棲姫
* [[Midway Princess]] / 中間棲姫
* [[Destroyer Princess]] / 駆逐棲姫
* [[Aircraft Carrier Water Oni]] / 空母水鬼
* [[Light Cruiser Oni]] / 軽巡棲鬼
* [[Battleship Water Oni]] / 戦艦水鬼
* [[Seaport Water Oni]] / 港湾水鬼
* [[Anchorage Water Oni]] / 泊地水鬼
* [[Air Defense Princess]] / 防空棲姫
* [[Seaplane Tender Princess]] / 水母棲姫
* [[PT Imp Group]] / PT小鬼群
* [[Light Cruiser Princess]] / 軽巡棲姫
* [[Submarine Princess]] / 潜水棲姫
* [[Destroyer Water Oni]] / 駆逐水鬼
* [[Heavy Cruiser Princess]] / 重巡棲姫
* [[Supply Depot Princess]] / 集積地棲姫
* [[Central Princess]] / 中枢棲姫
* [[Seaport Summer Princess]] / 港湾夏姫
* [[Seaplane Tender Water Princess]] / 水母水姫
* [[Abyssal Jellyfish Princess]] / 深海海月姫
* [[Abyssal Stranded Landing Princess]] / 擱座揚陸姫

h4. Additional

* [[Enemy Aircraft (kancolle)|]]
* [[Abyssal Admiral (kancolle)|]]
* [[Female Abyssal Admiral (kancolle)|]]

h4. External links

* "Nicopedia: 深海棲艦":[http://dic.nicovideo.jp/id/5113088]
深海棲艦 深海棲艦化