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Zustand: Very Good. 365 pp., hardcover, minor library markings, else text clean and binding tight. - If you are reading this, this item is actually (physically) in our stock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible for any additional duties, taxes, or fees required by recipient's country.…

The shallow subtidal mactrid bivalve Mactrinula reevesii is a deposit-feeder in the southern and south-eastern oceanic waters of Hong Kong. Buried obliquely, large quantities of fine sediment are taken into the mantle cavity and sorted on enormous labial palps. The small ctenidia probably have little value in collecting material, amounts taken in being too large. The mid gut is long and complexly folded inside the visceral mass. It is also capable of distension, although superficial visceral muscles maintain internal tonus. The rectum is narrow and creates compact faecal pellets. Most interest is in the ventral mantle margin which is, posterior to the pedal gape and the base of the inhalant siphon, united by a sheet of cuticle. There is no fourth pallial aperture. There are, however, two pairs of flaps extending along the posterior third of the internal ventral mantle surface. These arch over left and right mantle rejection tracts which transfer unwanted material to the base of the inhalant siphon for final expulsion. The mantle flaps prevent such material from being returned to the anterior end of the mantle cavity, for palp reprocessing, when new material arrives. They, thus, maximize sorting efficiency by separating unsorted from sorted and rejected material. Other mactrids have similar mantle flaps which they use in different ways, including the channelling of unwanted material to a fourth pallial aperture for expulsion, as in Lutraria lutraria. The Mactridae have thus evolved a unique method of increasing the efficiency of pseudofaecal waste rejection which has thereby facilitated the deposit-feeding lifestyle by the diverse representatives of this family. 22 pp., 16 figs, gr. 8.…

Soft cover. Zustand: Very Good. 1st Edition. 255pp Includes Research Reports Nos. 33-39.

Soft cover. Zustand: Very Good. 1st Edition. 255pp Includes Research Reports Nos. 33-39.

Soft cover. Zustand: Fine. No Jacket. 50 pp. ; 28 cm color pictorial wrappers ; cartoons by Ponce De Leon, Priscilla, Charles Allen, Dan Danglo, MacDonald, A. Kaufman, Jack Markow, Michael Berry, Dick Ericson, Ralph Newman, Ray J Fox, Ali, Dan Decarlo, Pearson, Dan Kilgo, Bill O'Malley, Cramer, Charles Strauss, MacDonald, Nate Collier, Kraus, Bob Barnes, George Reckas, A. Rinson, La Mandola, Harry Lampert, Danotto, Salo, George Wolfe, George Shane, Maguire, Paul Carruth, Jeff Keate, Jefferson Machamer, stories by Robert Fontaine, Al Steen, Gurney WIlliams, Parke Cummings, Jimmy Durante, Garry Moore, Tracy Perkins, Walter H Schmidt, Clarence Mansfield Lindsay, B G Boyd, Richard J Bennett, P. Bracken, Norman Anthony, Alan Maguire, ; pages very brittle and foxed ; scarce FINE. Magazine. …

Paperback. Zustand: Brand New. reprint edition. 337 pages. 8.90x6.00x0.80 inches. In Stock.

, 8 volumes from the Yarns series Various Editions , spines rubbed, on one volume the spine is torn at the head and tail and the front cover hinge is torn, one volume has the spine sunned, corners rubbed, pages clean, good condition , pastel-colour paper covers with black titles and decoration , 18.5 x 13 cm paperbacks ISBN. …