Dotilla myctiroides is a species of sand bubbler crab found on tropical shores and mud-flats of India, Thailand, Malaysia, Indonesia, Singapore and Sri Lanka.[2] They breed throughout the year but activity peaks during the monsoons. This species builds a burrow, called an "igloo", in unstable sand as well as in well-drained and firm sand. In building the igloo, the crab excavates sand and forms it into spherical pellets. These pellets are used to form a circular wall and roof in the burrow. The resulting structure holds a small amount of air in addition to the crab itself.[3]
^Takeda, Satoshi; Matsumasa, Masatoshi; Yong, Hoi-Sen; Murai, Minoru (1996). ""Igloo" construction by the ocypodid crab, Dotilla myctiroides (Milne-Edwards) (Crustacea; Brachyura): The role of an air chamber when burrowing in a saturated sandy substratum". Journal of Experimental Marine Biology and Ecology. 198 (2). ElSevier: 237–247. doi:10.1016/0022-0981(96)00007-X.