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Squilla empusa
''Squilla empusa'' is a species of mantis shrimp found in coastal areas of the western Atlantic Ocean. It excavates and occupies a burrow in soft sediment from which it emerges, mainly at night, to feed on fish and invertebrate prey.
==Description==
''Squilla empusa'' grows to a length of about . The head bears stalked compound eyes which can move separately to scan the surroundings. The head and thorax are fused into a cephalothorax which is protected by a shield-like carapace. The thorax has eight segments each bearing a pair of appendages. The front pair are slender and used for grooming whereas the second pair are large, raptorial claws that can slash and spear prey.〔 The third, fourth and fifth pairs each have a flattened terminal segment. They are known as maxillipeds and are used to move food to the mouth. The sixth, seventh and eighth pairs are unspecialised walking legs known as pereiopods. The abdomen has six segments, the front five each having a pair of pleopods (swimming legs). These are biramous (branched) and bear filamentous gills. The sixth segment bears a pair of large uropods which, together with the flexible, six-spiked telson, forms a broad tailfan.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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