Calymnidae

Calymnidae

[kə′lim·nə‚dē]
(invertebrate zoology)
A family of echinoderms in the order Holasteroida characterized by an ovoid test with a marginal fasciole.
References in periodicals archive ?
The Echinoneidae, Nucleolitidae, Urechinidae, Echinocorythidae, Calymnidae, Pourtalesiidae, Palaeostomatidae, Aeropsidae, Palaeopneustidae, Hemiasteridae and Spatangidae.