The sea and its living wonders; a popular account of the marvels of the deep / [G. Hartwig].

  • Georg Hartwig
Date:
1866
Catalogue details

Licence: Public Domain Mark

Credit: The sea and its living wonders; a popular account of the marvels of the deep / [G. Hartwig]. Source: Wellcome Collection.

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    Oyster Banks.—Pearl-fishing in Ceylon.—How are Pearls formed?—The Tridacna gigas.—The Teredo navalis.—The Brachiopods.—The Terebratulae. — The Polyzoa.—The Sea-Mats.—The Eschar®.—The Lepralife.—Bird's Head Processes.—The Tunicata.—The Sea-Squirts.—The Chelyosoma.—The Botrylli. —The Pyrosomes.—The Salp®.—Interesting Points in the Organisation of the Tunicata ........ Page 270 CHAPTER XVI. ECHINODERMATA. STAR-FISHES, SEA-URCHINS, AND SEA-CUCUMBERS. The Star-Fishes —Their Eeet or Suckers.—Voracity of the Asterias.—The Rosy Feather-Star.—Brittle and Sand-Stars.—The real Sea-Stars of the British Waters.—The Sea-Urchins.—The Pedicellarise.—The Shell and the Dental Ap- paratus of the Sea-Urchins.—The Sea-Cucumbers.—Their strange Dismember- ments.—Trepang-fishing on the Coast of North Australia.—In the Feejee Islands ...... ... 328 CHAPTER XVII CCELENTERATA. POLYRS AND JELLY-FISHES. Thread-cells or Urticating Organs.—Sertulariae.—Campanulariadse.—Hydrozoic Acalephse.—Medusidse.—Lucernariadae. — Calyeophoridse.—The Velella.- -The Portuguese Man-of-war.—Anecdote of a Prussian Sailor.—Alternating Fixed and Free-swimming Generations of Hydrozoa.—Actinozoa.— Ctenopliora—Their Beautiful Construction.—Sea-anemones.—Dead Man’s Toes.—Sea-pens.—Sea- rods.—Red Coral.—Coral Fishery.—Isis hippuris.—Tropical Lithophytes.— History of the Coral Islands—Darwin’s Theory of their Formation—The progress of theii Growth above the level of the Sea . . . 345 CHAPTER XVIII. PROTOZOA. The Foraminifera.—The Amoebae.—Their Wonderful Simplicity of Structure.—The Polycystina.—Marine Infusoria.—Sponges.—Their Pores—Fibres and Spiculae— The Common Sponge of Commerce . . . . .378 CHAPTER XIX. MARINE PLANTS. The Algae.—Zostera marina.—The Ulvae and Enteromorphae.—The Fuci.—The Laminariae.—Macrocystis pyrifera.—Description of the Submarine Thickets at Tierra del Fuego.—Nereoeystis lutkeana.—The Sargasso Sea.—The Gathering of edible Birds’-nests in the marine Caves of Java.—Agar-Agar.—The Floridese. — The Diatomacem.—Their importance in the economy of the Seas . 390