This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1883 Excerpt: ...plate concave, thin, with the fold forming a narrow linear cavity open to the apex of the shell. N. Chinensis, Gray. China. Spirocrypta, Gabb. Summit of shell posterior, lateral and submarginal, spiral. Internal plate attached to the margin on the lower or outer side, curving upwards and inwards and uniting with the ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1883 Excerpt: ...plate concave, thin, with the fold forming a narrow linear cavity open to the apex of the shell. N. Chinensis, Gray. China. Spirocrypta, Gabb. Summit of shell posterior, lateral and submarginal, spiral. Internal plate attached to the margin on the lower or outer side, curving upwards and inwards and uniting with the opposite side at a considerable distance. The plate is subspiral, thus approaching Trochita and Galerus. G. pileum, Gabb (lxiv, 78). Cretaceous; Cal. Galericulus, Seeley. Distr.--G. alius, Seeley (lxiv, 79). This genus has two separate septa, the larger one originating below the incurved apex, and the smaller one at the base. Only the cast is as yet known; the upper surface of the shell, which has the form of a Helcion, not having been observed. Capulus, Montf. Bonnet-limpet. Syn.--Pileopsis, Lam. Actita, Fischer de Wald. Distr.--8 sp. W. Indies, Europe, India, Australia, W. America. Fossil, 20 sp. Silurian--. C. Ungaricvs, Linn, (lxvi, 30). Shell conical, apex posterior, spirally recurved; aperture rounded; muscular impression horseshoe-shaped. Tongue-membrane winged on each side in front, teeth arranged in seven series (3'l-3), central teeth small and broad with the apex hooked, the lateral teeth long and hamate. Rostrum lengthened; tentacles subulate, with the eyes on bulgings at their outer bases. Mantle simple in front; gill forming a single plume placed obliquely across the mantle-cavity, lamina elongate, linear, partly exposed. Foot folded on itself, the sides simple, anteriorly thin and strap-shaped, posteriorly thick, orbicular and concave. These animals are said to feed on the sea-weed that grows around them, and on small marine organisms. They appear to have but limited locomotion, being usually adherent and modifying the margin of the...
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Add this copy of Structural and Systematic Conchology: an Introduction to cart. $39.00, fair condition, Sold by Redux Books rated 5.0 out of 5 stars, ships from Wyoming, MI, UNITED STATES, published 1882 by Published by the Author.
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Seller's Description:
Fair. Fair+ hardcover. No DJ. ORIGINAL 1882 EDITION. VOLUME 1 ONLY. Ex-Library with usual markings. Text is unmarked. Slightly tanned. Covers show edge wear with rubbing/scuffing and bumped corners. Library support tape on hinges and back strip.; 100% Satisfaction Guaranteed! Ships same or next business day!
