thecomedusæ

pl. [ Gr.thēkē a case, and Mod. Lat. med usæ, pl. of medusa (q. v.).] Zool.: Allman's name for an order of Hydroid a formed by him for the reception of Stephanoscyphus mirabilis . [STEPHANOSCYPHUS.] the-co-smi-li-a, subst . [Gr. thēkē =a case, and smile a knife for cutting.] Palæont .: A genus of Actinozoa. One species from the Rhætic or Lower Lias; twenty-one from the Jura ic rocks of Britain, and others from the Cretaceous and Tertiary.