TABLE OF CONTENTS 



CHAPTER I 



PAGE 



PHYLUM TUNICATA .... 1 



Order 1. Ascidiacea. . . 25 



Tribe 1. Ascidiae simplices 



(Monascidia) . . 26 

 2. Ascidiae composi- 



tae (Synascidia) 30 

 3. Ascidiae Salpae- 

 fonnes (Asc. 



Luciae) ... 39 



Order 2. Thaliacea ... 44 



Sub-order 1. Hemimyaria 



(Safpida) . . 45 

 ,, 2. <>ydotnyaria 



(Doliolida}. . 54 



Order 3. Appendiculariae . 60 



CHAPTER II 



PHYLUM ENTEROPNEUSTA . 66 



Order 1. Balanoglossida . 68 



2. Cephalodiscida . 104 



CHAPTER III 



PHYLUM ECHINODERMATA .115 



Class I. ASTEROIDEA . . 166 



Order 1. Encrinasteriae . . 188 

 2. Euasteriae. . .189 



Sub-order 1. Phanerozonia 189 



,, 2. Cryptozonia . 191 



Class II. OPHIUROIDEA . 194 



Order 1. Lysophiurae . . 205 

 2. Zygophiurae 



(Ophiurae) . . .205 



3. Streptophiurae . 206 

 , 4. Cladophiurae 



(Euryalae) . . . 207 



Class III. ECHINOIDEA . 

 Order 1. Palaechinoidea 

 2. Euechinoidea . 



Sub-order 1. Cidaroidu 

 ,, 2. Diadematoida 



Section 1. Streptosoiuata 



2. Stereosomata . 



Sub-order 3. Holectypoida . 



,, 4. Clypeastroida 



5. Spatangoida . 



Section 1. Asternata 



2. Sternata 



Class IV. HOLOTHUROI- 

 DEA . . 



Order 1. Actinopoda 



Sub-order 1. Aspidochiro- 



tae . 

 2. Dendrochirn- 



tae . 



Order 2. Paraetinopoda . 



Class V. CRIXOIDEA . 



Order 1. Larviformia 



2. Fistulata . . 



3. Camerata . . 



,, 4. Flexibilia . 



. 5. Articulata . 



Class VI. CYSTIDEA. . 

 Order 1. Amphorida 

 2. Rhombifera . 

 ,, 3. Diploporida 

 4. Edrioasterida . 



Class VII. BLASTOIDEA 



CHAPTER IV 

 PHYLUM ARTHROPODA 



PAGE 



208 

 238 

 239 



231? 

 239 



. 240 

 . 240 



242 

 243 

 244 



24 

 245 



247 

 265 



266 



268 

 269 



270 



293 

 293 

 295 

 297 



298 



303 

 309 

 309 

 309 

 310 



310 



. 314 



60276 



