Manual of Conchology; With Illustrations of the Species. Second Series

Manual of Conchology; With Illustrations of the Species. Second Series : Pulmonata Volume 17

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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. 1905 edition. Excerpt: ...black, the flrst whorl dirty-yellow, with broad brown flames, the suture broadly bluish-white. Sometimes the shell, especially the lower whorls, is white-striped, but always quite irregularly and raggedly so. In a few cases I have found remains of a caducous horny cuticle. The cuticle, white stripes, and the bluish "bloom" which overlays the shell like that of an untouched pium, are wanting in almost all collection specimens, for the dealers' cleaning, with acid, etc., has here as in other cases, only too often destroyed the true characters in an endeavor to beautify. This species is a regular article of trade, being universally eaten. It is therefore scarcer than it must have been in Rang's time. In the town, five were worth the price of a fowl. They differ only slightly in taste from Helix pomatia. Most specimens in collections are reddish-brown, from loss of the external coat. The surface shows a peculiar granulation in piaces. Rang obtained an albino individual, and Dohrn a coupie of pale flesh-colored ones, on Prince Island. One of these has been figured by Pfeiffer under the name var. carnea (pl. 19, fig. 27). It is apparently a variation rather than a variety. A dextral specimen was taken by Newton on St. Thome. Group of A. marginata. The shell is dextral, solid, white or blue-white within, the columella and parietal wall are whitish, roseate or purpie. 2. A. Marginata (Swainson). Pl. 24, figs. 22, 23; pl. 25, fig. 26. Ovate, solid and strong; yellow, marked with broad streaks or serrate stripes of rich chestnut or blackish chestnut, and typically more or less dappied between them; early whorls pale roseate. There is usually at the periphery an indistinct line, or a change to darker color below. The surface. nearly smooth...show more

Product details

  • Paperback | 80 pages
  • 189 x 246 x 4mm | 159g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236844416
  • 9781236844415