Janthinoidea is a superfamily of sea snails containing wentletraps (Epitoniidae) and surfing snails (Janthinidae). It includes species that have tethered egg masses, some of which are used for flotation.
Phylogeny Molecular evidence supports a tree for Janthinoidea that shows the sequential development of traits for a neustonic life. The wentletraps (Epitoniidae) have tethered egg masses that started to be used for flotation in Recluzia and then totally divorce from its original function for the ovoviviparous Janthina janthina.
Taxonomy Janthinoidea includes the following families, genera, and species. Epitoniidae Acrilla Acrilla acuminata Alexania Alexania inazawai Cirsotrema Cirsotrema multiperforata Cirsotrema varicosum Cycloscala Cycloscala crenulata Epidendrium Epidendrium aureum Epidendrium sordidum Epifungium Epifungium adgranulosa Epifungium adgravis Epifungium adscabra Epifungium hartogi Epifungium hoeksemai Epifungium lochi Epifungium marki Epifungium nielsi Epifungium pseudolochi Epifungium pseudotwilae Epifungium twilae Epifungium ulu Epitonium Epitonium ancillotoi Epitonium angulatum Epitonium clathratulum Epitonium clathrus Epitonium cf. jukesianum Epitonium jukesianum Epitonium replicatum Epitonium sawinae Epitonium scalare Epitonium tinctum Epitonium trevelyanum Gyroscala Gyroscala lamellosa Opalia Opalia chacei Opalia gracilis Surrepifungium Surrepifungium costulatum Surrepifungium ingridae Surrepifungium oliverioi Surrepifungium patamakanthini Janthinidae Janthina Janthina exigua Janthina janthina Janthina cf. prolongata CKC-2011 Janthina umbilicata Recluzia Recluzia cf. jehennei CKC-2011
References
External links Janthinoidea at UniProt