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Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass . Hdiotypr Co,B>«jp, PLATE VII. UlNTACRINUS SOCIALIS. PHOTOGRAPHS DiBECT FKOM THE SPECIMENS. Fig. 1. The disk of specimen No. 75 (PI. IV., Fig. 1, supra) enlarged diameters by thecamera. 2. Part of the same disk, enlarged X 10, showing the porous nature of the calcareousspicules. 3. Base of specimen No. 247 (PI. V., Fig. 6, supra) enlarged x ; showing theinfra-basals lying completely separated from each other and from the centrale. 4. Portion of arms and pinnules from specimen No. 233, natural size; to
Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass . Hdiotypr Co,B>«jp, PLATE VII. UlNTACRINUS SOCIALIS. PHOTOGRAPHS DiBECT FKOM THE SPECIMENS. Fig. 1. The disk of specimen No. 75 (PI. IV., Fig. 1, supra) enlarged diameters by thecamera. 2. Part of the same disk, enlarged X 10, showing the porous nature of the calcareousspicules. 3. Base of specimen No. 247 (PI. V., Fig. 6, supra) enlarged x ; showing theinfra-basals lying completely separated from each other and from the centrale. 4. Portion of arms and pinnules from specimen No. 233, natural size; to show therelative proportions of brachials in different parts of arms, or in arms of indi-viduals in different stages of growth. The two large arms are from the samecalyx, beginning about the 25th IIIBr. The other five, of various sizes, belongto as many different individuals; the smallest one, lying upon the upper part ofthe left large arm and down along side it, being almost at the distal end. Inthis figure the dimensions of the brachials in these arms can be compared. 5. Deta
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1901