CONTENTS. XV 



PAGE 



cornea — Myaae — Genus Mya — M. arenaria — M. truncata 

 — Genus Anatina — Mya globulosa — Genus Solen — Solen 

 endis — Genus Teredo — T. navalis — Acephala nuda — A. 

 Segregata — Genus Ascidise — A. rustica — A. lobifera — A. 

 Aggregata — Genus Pyrosoma — P. Atlanticum — Brachio- 

 podes — Cirrhopodes — Genus Anatifa — Lepas anatifera — 

 Genus Balanus (or Acorn Shells) — Balanus tintinna- 

 bulum 211 



Chapter XV. 



CORALS. 



Polypifera — Alcyonium digltatum — Alcyonidium gelatinosum 

 — ^Alcyonidium echinatum — Asteroida — Fungia, or Sea- 

 mushrooms — Meandrina cerebriformis, or Brainstone coral 

 — Gorgonia — Isis hippuris — Gorgonia flabellum (or Sea- 

 fan) — Flabellum Veneris (or Venus'fan) — Gorgonia anceps 

 — Gorgonia verrucosa — Gorgonia plaeomus — Gorgonia 

 lepidifera — Actinese (or Sea-anemones) — Holothurise (or 

 Sea-slugs) — Mammalia — Batena mysticetus — Balsena 

 nodosa — Keptilia 244 



CONCLTTDING EeMAUKS . ... 253 



Appendices ... 259 



