Cephalodiscus calciformis

Cephalodiscus calciformis is a sessile hemichordate belonging to the order Cephalodiscida.^[2] It is the only pterobranch species with funnel-shaped tubaria.^[3]

Cephalodiscus calciformis
Scientific classification
Kingdom:	Animalia
Phylum:	Hemichordata
Class:	Pterobranchia
Order:	Cephalodiscida
Family:	Cephalodiscidae
Genus:	Cephalodiscus
Species:	C. calciformis
Binomial name
Cephalodiscus calciformis Emig, 1977[1]