Marcus Er. (1957). On Opisthobranchia from Brazil 2. <i>Journal of the Linnean Society of London (Zoology)</i> 43(292): 390-486[details] Available for editors [request]
MolluscaBase eds. (2024). MolluscaBase. Hallaxa apefae Er. Marcus, 1957. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=532896 on 2024-05-01
original descriptionMarcus Er. (1957). On Opisthobranchia from Brazil 2. <i>Journal of the Linnean Society of London (Zoology)</i> 43(292): 390-486[details] Available for editors [request]
redescriptionGosliner T.M.; Johnson S. (1994). Review of the genus <i>Hallaxa</i> (Nudibranchia: Actinocyclidae) with descriptions of nine new species. <em>The Veliger.</em> 37(2): 155-191., available online athttp://biodiversitylibrary.org/page/42464857[details]