The whole beach here was covered with small Fiddler Crabs (Ocypodidae gen.). (1091k)
Here are the pictures of Fiddler Crab (Ocypodidae gen.) with links to the pages on which they appear, links to the full sized picture, and the description of the picture with links to the entry in iNaturalist (inaturalist.org)
All pictures are © Dr. Günther Eichhorn, unless otherwise noted.
Bangladesh Nature
Dr. Günther Eichhorn Travel Website
Soaring website