Taxonomy:
Class: Gastropoda Cuvier, 1797
Subclass: Heterobranchia J.E. Gray, 1840
Clade: Euthyneura Spengel, 1881
Clade: Nudipleura Wägele & Willan, 2000
Order: Nudibranchia Cuvier, 1817
Suborder: Euctenidiacea Tardy, 1970
Infraorder: Doridacea Thiele, 1931
Superfamily: Polyceroidea Alder & Hancock, 1845
Subfamily:Polycerinae Alder & Hancock, 1845
Genus: Thecacera Fleming, 1828
Species: Thecacera pennigera (Montagu, 1815) [Doris] |
formerly placed in the Order: NUDIBRANCHIA, in the Subclass: OPISTHOBRANCHIA
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