. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). TYPE M0LLU8CA. 3C1 lie ante- dtute of es kept I except imuiers, I lius of a great e Tetra- es ill the 3a of its r in the In the ionsisted ;rnm (;â¢), ambered Nmdilus lis being lostracou shells of II Spirilla d by the g disaji- less Hat- thill the pia (Fij^'. and tlic pi) form- s become steriorlc g exceed- lose c'oii- hainbois. tiou aiiti'- travel's* (I .oniewli.'ii er foriu-^, sists, tlif 01, 0), -- that fiually nothing is left but a plate imbedded in the man- tie, fo
. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). TYPE M0LLU8CA. 3C1 lie ante- dtute of es kept I except imuiers, I lius of a great e Tetra- es ill the 3a of its r in the In the ionsisted ;rnm (;â¢), ambered Nmdilus lis being lostracou shells of II Spirilla d by the g disaji- less Hat- thill the pia (Fij^'. and tlic pi) form- s become steriorlc g exceed- lose c'oii- hainbois. tiou aiiti'- travel's* (I .oniewli.'ii er foriu-^, sists, tlif 01, 0), -- that fiually nothing is left but a plate imbedded in the man- tie, formed entirely of chitinous material and destitute of any calcareous substance. This forms the so-called " pen" of such forms as Loligo and Ommastrephes {Fifr. IGl, D), a slight. FiG. 161,-DrAORAMs SiiEM. ov A, Sepia: R BelemviUs (fossil); C Os- trâcou; (lassi!); and D, Ommadrn'hes v^m',) ph = ;. ^ ,,ââ,,ââ pr - , ^ ,i,,ââ^.|^. tj'iekening of the dorsal end of it in some forms representing tlie remains of the phragniacone. In the the eight arms are practically equal in i""g h, and the body is more massive than in the ])ecaj)ods and less suited for active swimming. The visceral hum,) is a more or less globular mass, destitute as a rule of lateral lins. ;"ul m all forms a shell comparable to that of the J)ecapods â ^ wanting. Tn the females of Jnmanta, however, a non- '⢠' calcareous shell is present, to which the body of |l'<' ammal does not closely adhere, but whicl. is iield in I'osi- "uu by the broad plate-like anterior arms which embrace it. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original McMurrich, J. Playfair (James Playfair), 1859-1939. New York : H. Holt
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License: Licensed
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1896
