GLOSSARY. 819 



ZOOID (Gr. zoon, animal ; and eidos, like). The more or less completely inde- 

 pendent organisms, produced by gemmation or fission, whether these remain 

 attached to one another or are detached and set free. 



ZOOPHYTE (Gr. zoon, animal ; phuton, plant). Loosely applied to many plant- 

 like animals, such as Sponges, Corals, Sea-anemones, Sea-mats, &c. 



ZOOSPORES (Gr. zoon, animal ; and spora, seed). The ciliated locomotive 

 gorms of some of the lowest forms of plants (Protophyta). 



