also: こめつきがに
noun
sand bubbler crab (Scopimera globosa)
A small crab that lives on sandy beaches and creates tiny sand balls while feeding.
干潮の砂浜でコメツキガニがたくさん見られる。
You can see many sand bubbler crabs on the sandy beach at low tide.
コメツキガニは砂の粒を口に入れて、有機物をこしとる。
Sand bubbler crabs put sand grains into their mouths and filter out organic matter.
The name コメツキガニ (米搗蟹) literally means 'rice-pounding crab', referring to the crab's feeding behavior that resembles the motion of pounding rice.