Manual of Conchology, Vol. 16: Structural and Systematic, With Illustrations of the Species; Urocoptid�, Achatinid� (Classic Reprint) - Hardcover

Tryon, George W.

9780666959515: Manual of Conchology, Vol. 16: Structural and Systematic, With Illustrations of the Species; Urocoptid�, Achatinid� (Classic Reprint)

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ISBN 10: 066695951X ISBN 13: 9780666959515

Publisher: Forgotten Books, 2018

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Excerpt from Manual of Conchology, Vol. 16: Structural and Systematic, With Illustrations of the Species; Urocoptid�, Achatinid�

It is usually necessary to examine the interior Of the shell. In small species, this may be done by rubbing the dorsal side Of the shell upon a fine file, or better, a clean Oil-stone, until the whole interior is exposed, as in the specimens drawn in pl. 2, figs. 3, 14; pl. 8, fig. 60, etc. In large forms, such as Eucalodium, it is not usually essential that the Whole length Of the shell be Opened. The radula may Often be found in shells so Opened, coiled closely about the axis. By soaking in warm water it can be removed and mounted in the usual manner.

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