CONTENTS. 
Page. 
Introduction 291 
Table of Species 291 
Discussion of Species 292-318 
Class Anthozoa 292 
Order Actiniae 292 
Family Caryophyllidae 292 
Genus Caryophyllia 292 
Caryophyllia berteriana? 292 
Genus Paracyathus 292 
Paracyathus de filippii 292 
Genus Oyathoceras 293 
Cyathoceras portoricensis 293 
Genus Deltocyathus 293 
Deltocyathus italicus 293 
Family Oculinidae 294 
Genus Oculina 294 
Oculina diffusa? var 294 
Family Stylophoridse 294 
Genus Axhelia 294 
Axhelia asperula 294 
Axhelia mirabilis 295 
Family Eusmilidae 295 
Genus Meandrina 295 
Meandrina maeandrites 296,297 
Family Astrangidae 298 
Genus Cladocora 298 
Cladocora arbuscula 298 
Cladocora debilis 298 
Genus Astrangia 298 
Astrangia solitaria? var. portoricensis 298,299 
Astrangia astreiformis 300 
Family Orbicellidae 300 
Genus Orbicella 300 
Orbicella acropora var 301 
Family Favidae 302 
Genus Favia 303 
Fa via fragum 303, 304 
Page. 
Discussion of Species — Continued. 
Class Anthozoa — Continued. 
Order Actiniae — Continued. 
Family Favidae — Continued. 
Genus Manicina 305 
Manieina areolata 305 
Genus Platygyra 305,306 
Platygyra viridis 306-308 
Family Agaricidse 309 
Genus Siderastrea 309 
Siderastrea radians 309 
Siderastrea siderea 309, 310 
Genus Agaricia 310 
Agaricia elephantotus 310 
Agaricia sp 310, 311 
Agaricia cailleti 311 
Genus Diaseris 311 
“ Diaseris ” crispa 311 
Family Isoporidae 312 
Genus Isopora 312 
Isopora muricata 312, 313 
Isopora muricata ss. (== cervicornis) 313 
Isopora muricata forma prolifera 313 
Isopora muricata forma palmata 313, 314 
Family Poritidae 314 
Genus Porites 314 
Porites porites 314-316 
Porites porites forma clavaria 316 
Porites porites forma furcata 316 
Porites porites forma divaricata 316 
Porites astreoides 317 
Porites astreoides forma a 317 
Porites astreoides forma /3 318 
Class Hydrozoa 318 
Order Hydrocoral linse 318 
Family Milleporidae 318 
Genus Millepora 318 
Millepora alcicornis 318 
290 
