xlii 
CONTENTS. 
VERMES. By Prop. F. Jeffrey Bell, M.A., Sec. R.M.S. 
Page 
Geographical Distribution . . 1 
Platyhelminthes 2 
Nematohelminthes 6 
Acauthocephali 7 
Chaetognathi 7 
Page 
Rotatoria 7 
Gephyrea 9 
Annulata 10 
Myzostomata 16 
Enteropneusti 16 
CCELENTERATA. By J. Arthur Thomson, M.A., F.R.S.E. 
List of Publications ...... 1 
General 9 
Embryology 9 
Histology 9 
Physiology 9 
Biological Considerations ... 9 
Technique 10 
Geographical Distribution . . 10 
Palaeontology 10 
Genera and Species — 
Hydrozoa 11 
Actinozoa 12 
Ctenophora 14 
SPONGLE. By Prof. W. J. Sollas, M.A., D.Sc., LL.D. 
General Remarks 1 
Titles 1 
Anatomy 4 
Ontogeny and Phylogeny ... 6 
Physiology 10 
Classification 10 
Distribution. 21 
New Species 26 
PROTOZOA. By J. Arthur Thomson, M.A., F.R.S.E. 
List of Publications 1 
General . . . 12 
Structure 13 
Physiology 13 
Reproduction . 14 
Parasitic 15 
Distribution and Faunistic . . 
Palasontological 
Genera and Species — 
Gymnomyxa 
Corticata . 
15 
16 
16 
16 
Index to Genera and Subgenera described as New, &c. ' 
