X CONTENTS. 



PART II. PAL^EOZOOLOGY. 



CHAPTER VII. 



Zoological characters and chief divisions of the Protozoa Relations of 

 the Protozoa to time Characters of the Foraminifera Variations 

 of the test of the Foraminifera Structure of Eozoon Distribu- 

 tion of the Forminifera in time Characters of the Radiolaria, and 

 their distribution in time Characters of the Sponges, and their 

 geological distribution Stromatopora Receptaculites, . 59-72 



CHAPTER VIII. 



General characters and chief divisions of the Ccelenterata Distribu- 

 tion in time of Coelenterate animals Orders of Hydrozoa not 

 represented as fossils Fossil Medusae and Sea-blubbers General 

 characters of the Corynida Palseocoryne Corynoides General 

 characters of the Thecaphora Dendrograpsus Dictyonema 

 Structure and probable affinities of Oldhamia General characters 

 and distribution of the Graptolitidae Structure of a simple Grapto- 

 lite Reproduction of Graptolites Monoprionidian and Diprion- 

 idian forms Characters of the genus Graptolites Didymo- 

 grapsus Tetragrapsus Dichograpsus Rastrites Diplograpsus 

 Climacograpsus Dicranograpsus Phyllograpsus, . . 73-85 



CHAPTER IX. 



General facts as to the distribution of the Actinozoa in time Divisions 

 of the Zoantharia Characters of Z. malacodermata Characters 

 of Z. sclerobasica, and their distribution in time Nature of a 

 Sclerodermic coral Structure of a simple coral Gemmation and 

 fission amongst corals Deep-sea corals and reef-builders 

 Ancient coral-reefs Divisions and distribution in time of the 

 Zoantharia sclerodermata Characters of the Rugosa Recent 

 Rugose corals Operculate corals Families and distribution in 

 time of the Rugosa Tabular view of the divisions of the Zoan- 

 tharia sclerodermata and Rugosa Characters of the Alcyonaria 

 Distribution of the Alcyonaria in time, . 85-102 







CHAPTER X. 



Characters of the Annuloida Characters of the Echinodermata Dis- 

 tribution of Echinodermata in time General characters of the 

 Echinoidea Structure of the test in Echinoids Spines and 

 tubercles Apical disc Regular and irregular Echinoids Peris- 

 choechinidae Distribution of Echinoids in time Chief families of 

 Echinoidea, their characters and distribution, . . . 102-110 



CHAPTER XL 



Characters of the Asteroidea Features distinguishing them from the 

 Echinodermata General structure of a Starfish Differences 

 among them Diagram and structure of a Goniaster The internal 

 and integumentary skeletons Distribution of the Asteroidea in 

 time Characters of the Ophiuroidea General structure of an 

 Ophiuroid Their distribution in time, .... 110-117 



