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Manual of Conchology, Structural and Systematic; With Illustrations of the Species Volume 13 (Paperback) Loot Price: R346 Discovery Miles 3 460
Manual of Conchology, Structural and Systematic; With Illustrations of the Species Volume 13 (Paperback): George Washington...
Manual of Conchology, Structural and Systematic; With Illustrations of the Species Volume 13 (Paperback): George Washington...

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Manual of Conchology, Structural and Systematic; With Illustrations of the Species Volume 13 (Paperback)

George Washington Tryon

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Loot Price R346 Discovery Miles 3 460

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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. 1891 edition. Excerpt: ...lugubris, the shell is more elliptical, more depressed, and the central spatula of the interior is longer and narrower. The variations exhibited by the series before me cause me to regard P. safiana Lam. and conspieua Phil. as close allies, possibly varieties of this species. i The form called P. canescens by Reeve is figured on pl. 57, figs. 36, 37. It has quite a different appearance, but I am disposed to believe that Mr. Smith is justified in placing it in the synonymy. Var. Vatheleti Pilsbry. Pl. 57, figs. 40, 41, 42, 43. Shell low-conic, ovate-rectangular, solid; sculptured with numerous unequal riblets, and having about nine larger but often indistinct ribs or angles, distinguished by white stripes, giving a more or less polygonal outline to the shell. The radiating ribs and riblets are closely cut or crenulated by concentric striae. The principal ribs are white, the intervals black. Upper part of the cone eroded, grayish-white. Interior whitish, somewhat stained with yellow, blotched around the margin with black, the central area either coal-black or marbled black and white. Length 28, breadth 22, alt. 7 mill. Senegal. These small shells are evidently allied to P. plumbea, but differ in contour, in the very short, broader central area of the interior, etc. They were collected by the Abbe A. Vathelet. P. Adansonii Dunker. Pl. 12, figs. 30, 31, 32, 33. Shell oblong-ovate, subelliptical, moderately elevated, sculptured with about 80-100 unequal ribs; whitish, marbled and striated with black, brown and olive. Apex situated in front of the anterior third of the length. Interior bluish, the central area white and rufescent, sometimes rather flesh-colored or liver-colored; toward the edge rayed with reddish. Margin subcrenate-dentate....

General

Imprint: Rarebooksclub.com
Country of origin: United States
Release date: September 2013
First published: September 2013
Authors: George Washington Tryon
Dimensions: 246 x 189 x 4mm (L x W x T)
Format: Paperback - Trade
Pages: 68
ISBN-13: 978-1-236-86251-8
Barcode: 9781236862518
Categories: Books > Humanities > History
Books > Humanities > History > General
Books > History > General
LSN: 1-236-86251-1

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