Catalogue of the Madreporarian Corals in the British Museum Volume N . 4

Catalogue of the Madreporarian Corals in the British Museum Volume N . 4

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ... show the typical formula with the usual two rows of pali, as large frosted granules rising at the points of fusion. Seen sideways the six large pali rise like clubs not quite as high as the wall. Small granules sometimes rise from the ends of the directives. The columellar tangle is inconspicuous and somewhat obscured by the ring of pali. The interseptal loculi are inconspicuous. The texture is altered on the tips of the knobs (fig. 7), being there a thin filamentous reticulum with a corresponding diminution in thickness of the intracalicular skeleton and increased size of the interseptal loculi. There is only one large very irregular specimen, 25 to 30 cm. high by 30 cm. across (see Pl. XIII. fig. 10), growing over several generations of previous growths. It is covered with columns and it is a question as to how far these were originally started by irregularities of the substratum, or are a normal growth. If the latter, they are quite peculiar within this genus. In Montipora, in which there is a special development of the ccenenchyma (see Vol. III.) it is common to find explanate stocks from the surface of which vertical columns arise. Contrast this with the tuft formation found in Goniopora, also derived from explanate stocks, but by the turning up and curling of the edges, see G. Great Barrier Reef 12. The specimen is entangled with a great mass of calcareous alga and perhaps thereby distorted. Here we have another instance of an explanate Goniopora with the regular calicles typical of that growth-form, cf. Introduction, p. 25, and figs. 8, Pl. VII. and 1, Pl. II. o. Zool. Dept. 83. 7. 27. 14. b. (A small fragment.) 61. Goniopora Seychelles (i)l. Seychelles; Paris Museum. Goniopora Savignyi, Milne-Edwards (parlim), Hist. more

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  • Paperback
  • 189 x 246 x 5mm | 191g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236567110
  • 9781236567116