Fretter v (53 resultados)

Soft cover. Condición: Very Good. Supplement 16 The Journal of Molluscan Studies 1986 - this copy would have been listed as Near Fine were it not for a spot of abrasion to the back cover. The rest of it is in excellent condition with clean white pages throughout, setting off the beautiful drawings and photographs.…

Condición: Poor. Volume 2a. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In poor condition, suitable as a reading copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1150grams, ISBN:0122675029.…

Condición: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. Clean from markings. In good all round condition. Dust jacket in fair condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1000grams, ISBN.…

Condición: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. Re-bound by library. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1700grams, ISBN.…

Condición: Poor. Volume 22. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. Clean from markings. In poor condition, suitable as a reading copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,950grams, ISBN:0126133220.…

18pp, 4 figs, Printed Card Cover, VGC.

22pp, 4 figs, Printed Card Cover, VGC.

22pp, 10 figs, Printed card cover, VGC.

20pp, 5 figs, Printed Card Cover, VGC.

As regards anatomy and histology the alimentary canals of Elysia viridis, Limapontia capitata and Hermaea dendritica are very similar and exhibit specializations for manipulating their filamentous algal food. The mouth leads through an oral tube to a small vestibule ventral to the anterior tip of the odontophore. Into the vestibule and the tube open subepithelial glands which secrete mucus and adhesive substances. The vestibule leads into the dorsal part of the buccal cavity containing the odontophore. This is lined by a cuticularized epithelium and muscles-striped in Hermaearadiate from the basement membrane or from the cuticle. The buccal cavity with its thick muscular walls acts as an organ for sucking into the alimentary canal the contents of plant-cells. The salivary glands open by ducts into its posterior part, behind the opening each duct swelling into a muscular vesicle which acts as a pump. The saliva probably contains enzymes. The oesophagus, ciliated and glandular, passes to the stomach. In Elysia and Herma a muscular oesophageal pouch is developed which assists in the transport of food along the gut. The small stomach, of little physiological significance, receives the wide ducts of the digestive gland. In Elysia these open into the left and mid-posterior walls. In Limapontia and Hermaea the posterior part of the stomach opens freely into the main tubules of the gland, which are sufficiently wide to accommodate sudden inflows of food pumped from the oesophagus. Owing to the type of food, from which the faecal matter is inconsiderable, and the total absence of a mantle-cavity, there is no necessity for extensive arrangements to elaborate the faecess; consequently the intestine is short and, except in Hermaea, without glands. The gut and the nervous system show greater resemblances to those of the Lophocercidae and Diaphanidae than to those of the other groups of nudibranchs. It is therefore in the primitive groups of the tectibranchs that the origin of the Ascoglossa is to be sought. 14 pp., 2 figs, br. gr. 8.…

Hardcover. Dust Jacket Included. pp.xvi, 755 with b/w. fine anatomical illus., throughout. Large 8vo. Ex-lib. Thor. vg. hardback in good dw.

Hardcover. Condición: Very Good. Estado de la sobrecubierta: Very Good. 4to., vi., 589pp. inc. index.top edge very lightly browned, ownership name to front pastedown otherwise very good in original green cloth with gilt stamped illustration to upper board and gilt titles to spine, very lightt shelf wear, very good in original dustwrapper sith slight browning and light shelfwear, very good. This book weighs over 1kg. Some overseas customers may be quoted additional shipping Size: 4to - over 9¾" - 12" tall.…

Condición: good. A copy that has been read, remains in good condition. All pages are intact, and the cover is intact. The spine and cover show signs of wear. Pages can include notes and highlighting and show signs of wear, and the copy can include "From the library of" labels or previous owner inscriptions. 100% GUARANTEE! Shipped with delivery confirmation, if you're not satisfied with purchase please return item! Ships via media mail.…

Condición: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. Library sticker on front cover. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1850grams, ISBN.…

Condición: Very Good. 820, 341 figs. . HB. Vg in d/w. From the library of Prof. J. Green (1928-2016) with his name to endpaper. Second edition, revised and updated. [9780903874236].

Condición: Very Good. Former library copy. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

52 pp., 130 figs, br. gr. 8.

Hard covers, dust jacket. Condición: Fine. Estado de la sobrecubierta: Fine. 2nd edition. Scarcely used. Owner's initials on ffep. xix, 820 pp. Weight: 1 Language: English.

Imperial octavo, green heavy boards, gilt lettering to spine, gilt insect illus to front board, vi + 589pp, illus, VG+ (light bruising to board edges/extrems, light foxing to page edges & eps, prev. owner's name in ink to ffep) in d/w, VG- (price clipped, moderate creasing & chipping with some minor loss to edges, light tanning to spine, light chafing & soiling).…

40 pp., 7 figs, nr. gr. 8.