Bivalvia - Cardiida - Veneridae
Alternative spellings: Circe (Gouldia), Crassinella (Gouldia), Gafrarium (Gouldia)
Synonym: Thetis Adams 1845 [replaced name]
Parent taxon: Veneridae according to S. Schneider et al. 2005
Sister taxa: Ameghinomya, Austrocardilanx, Callistinae, Chamelea, Clementina, Cockburnia, Eurhomalea, Ezocallista, Gemma, Macrocallista, Mercenaria, Meretricinae, Pitaria, Pitarinae, Pullastra, Sinodia, Sunettinae, Transennella, Venerinae, Venerupis, Venidia, Xenoloupia, Gafrarium, Circe
Subtaxa: Gouldia (Circenita), Gouldia (Gouldia), Gouldia (Gouldiopa), Gouldia (Paragouldia), Gouldia alta, Gouldia cerina, Gouldia circularis, Gouldia costaricensis, Gouldia insularis, Gouldia minuta, Gouldia primaeva, Gouldia subpusilla
Type: Thetis cerina
Ecology: facultatively mobile infaunal suspension feeder