Hancockiidae is a family of nudibranchs, shell-less marine gastropod molluscs or sea slugs, in the superfamily Dendronotoidea.
Taxonomy Hancockiidae has been recovered as sister to the assemblage of the families Bornellidae and Dotidae.
Genera The family Hancockiidae includes only one valid genus: Hancockia Gosse, 1877
References
See also Thompson, T. E., & Brown, G.H., 1984. Biology of opisthobranch Molluscs. Vol. 2. Ray Society; London. 1-229, p.20