Title: Science of the sea. An elementary handbook of practical oceanography for travellers, sailors, and yachtsmen
Year: 1912 (1910s)
Authors: Challenger Society Fowler, G. Herbert (George Herbert), 1861-1940
Subjects: Oceanography Ocean
Publisher: London, John Murray
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library
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Text Appearing Before Image:
Fig. 190.—Terebratula , a Lamp-shell (Challenger).
Text Appearing After Image:
Fig. 189. — Cellularia, MAGNIFIED ( BLAKE ) . 260 ANIMALS OF THE SEA FLOOR necessarily made from a distance, can appreciate.The reason for the preference for one type of bottomrather than another usually resolves itself into aquestion of support or of shelter, either for the speciesitself or for its prey. Of course, there are very manyspecies that may be found indifferently on all sorts ofbottom and under all kinds of conditions. The connection between the nature of the bottomand its inhabitants may be illustrated by an example.In some spots on the west side of the Irish Sea, whena haul of a trawl is made, at least 90 per cent, of thecatch consists of the Alcyonarian or false coral,known as Dead Mens Fingers (Alcyonium digi-tatum), while on the surrounding grounds only a fewspecimens are to be met with. The reason of this isclear. These spots where Alcyonium nourishes arebeds of dead shells, mostly scallops and spiny cockles,which afford a foothold for the swimming larva of theAlcyo
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