Thalassinidea
plural noun
Tha·las·si·nid·ea
| \ thəˌlasəˈnidēə\
Definition of Thalassinidea
: a subtribe of Anomura including small crustaceans with a thin flexible carapace, long soft abdomen, and unsymmetrical chelae that burrow in sand or mud along seashores — compare ghost shrimp
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