Order Runcinida Colosi 1915 (snail)
Alternative spelling: Runcinidea
Parent taxon: Euopisthobranchia according to P. Bouchet et al. 2017
Sister taxa: Aplysiida, Pteropoda, Umbraculida
Subtaxa: none
Ecology: epifaunal
Distribution: there are no occurrences of Runcinida in the database