Very many thanks for the papers sent. They are most interesting & useful to me. The Ctenaria is a most beautiful intermediate form.
Now I want to || beg you on a print of terminology – None of the terms in use will hold good now for the divisions of Hydrozoa.
Therefore call them Hydromedusae and Scypho- or Scyphistomedusae.
I used these terms in my preface to Gegenbaur. But you use Scyphomedusae for Lucernaria &c. &c. || Now is that not a pity? To throw away a good symmetrical term like that upon a small group – such as the Lucernariae.
All confusions as to Discophora, Acaleptae, Hydroida, Medusae &c. are at once removed if you name your two big groups { Hydromedusae | Scyphistomedusae
