. The naturalist in Australia. Natural history. 234 THE NATURALIST IN AUSTRALIA. area of their growing surfaces is thickly studded with the expanded polyps. These, when fully extended, are about three quarters of an inch in diameter, possess twenty- four almost uniformly even subulate tentacles, and are coloured a still lighter yellowish 71". SaDille-Kenf, Photo. KEYOLL'TE CUP COKAL, TitrhinarUi revoluta^ shakk's hay, western ai'stralia. one-third natvral size. An extensive reef area of Turhinaria conaxncua, viewed through the clear water, while drifting over it in a boat, p


. The naturalist in Australia. Natural history. 234 THE NATURALIST IN AUSTRALIA. area of their growing surfaces is thickly studded with the expanded polyps. These, when fully extended, are about three quarters of an inch in diameter, possess twenty- four almost uniformly even subulate tentacles, and are coloured a still lighter yellowish 71". SaDille-Kenf, Photo. KEYOLL'TE CUP COKAL, TitrhinarUi revoluta^ shakk's hay, western ai'stralia. one-third natvral size. An extensive reef area of Turhinaria conaxncua, viewed through the clear water, while drifting over it in a boat, presents, on account both of the colour and contour of its component coralla, a most remarkable resemblance to subaqueous plantations of Brobdingnagian, crinkled-leaved, savoy cabbages. As has been previously remarked in ChaiDter V., the genus Turbinaria is a coral group that would appear to attain to the zenith of its development in the somewha,t cooler waters on the outskirts of the tropics, and has been observed by the writer to flourish under such conditions, to the exclusion of other species, in the Gulf of Carpentaria and in South Queensland waters. Nowhere, however, has it been found by him to attain to such a plenitude of development, with regard both to the number of varieties and the magnitude of their individual coralla, as in Shark's Bay, Western Australia. A final example of this very characteristic generic group is photographically portrayed on this page. It represents a specimen also gathered by the writer at Shark's Bay, which has been retained in his collection as a sort of " ewe lamb" out of the flock of its comrades donated to the National Museum, which it will probably rejoin later on. This specimen takes the form of a shallow cup, between. 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 origina


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Keywords: ., bookcentury1800, bookdecade1890, bookp, booksubjectnaturalhistory