. The Cambridge natural history. Zoology. genus occurring only . n £ t>- in fresh water. TruneateUa^ irom Kissoa. fact that in Gieomelania (with its subgenera Chittya and Blandielld) we have a form of Tnmeatella which. Fig. 12. — A, Cerithium columna Sowb. (marine). B, Potamides microptera Kien. (brackish water). C, lo spinosa Lea, one of the Pleuroceridae (fresh water). has entirely deserted the neighbourhood of the sea, and lives in woody mountainous localities in certain of the West Indies. Oremnoconchus^ a remarkable shell occurring only on wet cliffs in the ghats of southern India, is
. The Cambridge natural history. Zoology. genus occurring only . n £ t>- in fresh water. TruneateUa^ irom Kissoa. fact that in Gieomelania (with its subgenera Chittya and Blandielld) we have a form of Tnmeatella which. Fig. 12. — A, Cerithium columna Sowb. (marine). B, Potamides microptera Kien. (brackish water). C, lo spinosa Lea, one of the Pleuroceridae (fresh water). has entirely deserted the neighbourhood of the sea, and lives in woody mountainous localities in certain of the West Indies. Oremnoconchus^ a remarkable shell occurring only on wet cliffs in the ghats of southern India, is a modified Llttorhia. Neritina and Nerita form a very interesting case in illustration of the whole process. Nerita is a purely marine genus, occurring on rocks in the littoral zone; one species, however, (iV. Uneata, 1 Not to N'assa, as has been generally held. The shape of the operculum, and particularly the teeth of the radula, show a much closer connexion with 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 Harmer, Sidney Frederic, 1862-; Shipley, A. E. (Arthur Everett), Sir, 1861-1927. [London, Macmillan and Co. , limited; New York : The Macmillan, Company]
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
