Category:Hermissenda crassicornis

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DomainEukaryota • RegnumAnimalia • SubregnumEumetazoa • CladusBilateria • SuperphylumProtostomia • PhylumMollusca • ClassisGastropoda • SubclassisOpisthobranchia • OrdoNudibranchia • FamiliaFacelinidae • GenusHermissenda • Species: Hermissenda crassicornis Eschscholtz, 1831