of Echinocardium cordatum, [551];
of Antedon rosacea, [583];
of Hyocrinus, [589];
of Actinometra, [589];
development of, in Eleutherozoa, [604], [605];
in Antedon rosacea, [618], [619]
Allen, on food of Echinus esculentus in Plymouth Sound, [516]
Allman, [246], [265], [267], [273], [274];
on Cystoflagellates, [135]