PROBLEM TO BE SOLVED: To provide a case for small animals capable of feeding small animals with water in a state isolated from the outside and being suited to transportation and/or breeding of the small animals.SOLUTION: A closed type cage for small animals includes a box body 4 the upper surface of which is opened, and a lid 6 that covers the opening part of the box body 4. The lid 6 has a water feed bottle storage part 11 in which a water feed bottle 10 is disposed, the water feed bottle 11 has a water feed hole 16 at the bottom thereof, and a cylindrical body 30 is provided around the feed water hole 16. The water feed bottle 10 is disposed in the water feed bottle storage part 11. An upper end of a cylindrical seal member 20 is watertightly fitted in a mouth part 19 of the water feed bottle 10, and a lower end of the seal member 20 is airtightly fitted in the cylindrical body 30.COPYRIGHT: (C)2014,JPO&INPIT【課題】外部と隔離した状態で小動物への給水が行え、小動物の輸送用および/または飼育用に適した小動物用ケージを提供する。【解決手段】上面が開口する箱体4と、箱体4の開口部を覆う蓋6とを有する密閉系の小動物用ケージである。蓋6に給水ボトル10を配設するための給水ボトル収容部11が設けられ、給水ボトル収容部11の底部に給水孔16が設けられ、給水孔16の周囲に筒体30が設けられている。給水ボトル10が給水ボトル収容部11内に配設されている。筒状のシール部材20の上端部が給水ボトル10の口部19内に水密的に密着され、シール部材20の下端部が筒体30内に気密的に密着されている。【選択図】図1