Elements of zoölogy (1884) (21240812656)

Fixed tube-making marine worms (Serpula)
Title: Elements of zoölogy
Identifier: elementsofzology00hold (find matches)
Year: 1884 (1880s)
Authors: Holder, Charles Frederick, 1851-1915; Holder, Joseph Bassett, 1824-1888, joint author
Subjects: Zoology
Publisher: New York : D. Appleton and company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress



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5o THE WORMS.
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Fig. 53.—Fixed tube-making marine worms (Ser-pules). Value.—Food and bait. Note.—The most brilliant light-givers are found in the families Polynoidce, Syllidce, Chcetopteridce, and Polycirrus. If the first named is watched in the aquarium, gleams of greenish light will be seen at the attachment of each scale, and the separate organ glistens with pulsa- tions of light at the ruptured surface. In the second worm the under surfaces of the feet are the only luminous spots. In the third the light is confined to the dorsum of the tenth segment or joint, while the Poly- cirrus is phosphorescent over its entire surface, emitting a vivid pale bluish light. Works on Worms for further reference. Verrill, " Invertebrata of Vineyard Sound," in "Report of United States Commissioner of Fisheries," 1874 ; Verrill, " Parasites of Man and Domestic Animals" ; " Planarise of our Ponds and Streams," E. R. Lankester, in "Popular Science Review," October, 1867 ; "Alternate Generation and Embryology of Antolytus cornutus," A. Agassiz, " Bos- ton Journal of Natural History," vol. vii ; " North American Fresh- Water Leeches," A. E. Verrill, in " American Journal of Science," 1872, vol. iii, page 126; "Animal Parasites and Messmates," Van Beneden ; "Formation of Vegetable Mold," Darwin.