CONTENTS. 
XXV11 
CCELENTERATA. 
Hydrozoa and Ctenophora. By A. G. Bourne, B. Sc. (Lond.). 
Page 
Titles 1 
Hydromedusae — 
Gymnoblastea-Anthomedusae 7 
Calyptoblastea-Leptomedusae 7 
Trachomedusae 8 
Page 
Narcomedusae 8 
Siphonophora 8 
Scyphomedusae — 
Discomedusae 9 
Antiiozoa. By S. J. Hickson, B.A., B.Sc. (Lond.), &c. 
Titles 9 Octactiniae 18 
Polyactiniae 15 Tetracoralla 19 
Madreporaria 17 
SPONGIIDA. By Stuart O. Ridley, M.A., F.L.S., F.R.M.S., 
Brit. Mus. (Nat. Hist.). 
Chief Works on Recent Sponges 1 
Faunae 4 
Genera, Spocios, &c., referred to G 
New Genera and Species ... 1G 
General Anatomy and Physi- 
ology 19 
Fossil Sponges 20 
PROTOZOA. By W. Saville-Kent, F.L.S., F.Z.S. 
The General Subject 1 I Flagellata 8 1 Gregarinida ... 15 
Ciliata .... ... 7 | Rhizopoda 12 | 
Index to Genera and Subgenera described as New, &c. 
