Creseis acicula is a species of pteropod, a distant type of sea-slug. It is in the family Creseidae.
Description Creseis acicula's size varies from . It is described as a straight-needle pteropod, and has small wings at the top of its 'head'.
Distribution The species has a cosmopolitan distribution throughout the Caribbean, the Atlantic and Pacific oceans, the Mediterranean Sea and South America.
Diet The species feeds on small organisms such as diatoms, phytoplankton, archaea and larger protists.
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