By Thomas E. Burke

Terrestrial mollusks, the second one biggest phylum within the animal country, are extremely important to the earth’s ecology. With the ebook of Land Snails and Slugs of the Pacific Northwest, a definitive and complete advisor to snails and slugs of Oregon, Washington, Idaho, and western Montana is ultimately available. 

Primarily an id consultant, this richly illustrated quantity bargains entire info at the variety of terrestrial mollusk shapes, sizes, and features. It offers an outline in their habitat standards in addition to information of land snail and slug ecology, assortment and maintenance tools, and biogeography. 

Land Snails and Slugs of the Pacific Northwest is an important reference for biologists, horticulturalists, gardeners, and naturalists, and somebody wishing to spot species within the field.

• id keys and species money owed for many of the 245 taxa of terrestrial slugs and snails within the region

• 280 full-color images of one hundred fifty five species and subspecies 

• diversity maps for many species

Show description

Read or Download Land Snails and Slugs of the Pacific Northwest PDF

Similar zoology books

Zoology in Early Modern Culture: Intersections of Science, Theology, Philology, and Political and Religious Education (Intersections: Interdisciplinary Studies in Early Modern Culture, Volume 32)

This quantity attempts to map out the interesting amalgam of alternative, in part conflicting ways that formed early smooth zoology. It demonstrates that theology and philology performed a pivotal function within the complicated formation of this new technological know-how.

Peacemaking among Primates

Does biology condemn the human species to violence and conflict? past experiences of animal habit incline us to reply to sure, however the message of this publication is significantly extra positive. with no denying our background of competitive habit, Frans de Waal describes strong tests and balances within the make-up of our closest animal relations, and in so doing he exhibits that to people making peace is as common as making battle.

Additional info for Land Snails and Slugs of the Pacific Northwest

Example text

F/ff] (b) Apertural lip thin, not flared or reflected; expanded only at the columellar margin. 8 to 3 mm high with 5½ to 7 whorls. No crest or sinulus. . . . . . . . . . . . . . . . . . . Genus: Columella, p. 97 (bb) Apertural lip flared or reflected. . . . . . . . . . . . . . [c/cc] (c) Shell of about 4½ rapidly enlarging whorls, about 2 mm high, and strongly ovately-conic. . . . . . . . . . . Nearctula dalliana, p. 75 to 4 mm high. Apertural lip reflected following a constriction of the whorl .

19] 18b Shell diameters less than 30 mm. Colored spiral bands lacking. Aperture lip may or may not be well reflected. . . . . . . . . [24] 19a Imperforate as adults, or if greater than 40 mm wide then may be rimately umbilicate; or immature Cepaea may be perforate. Shells more or less globose, moderately large to quite large. Usually with colored spiral bands (sometimes lacking). Aperture lip narrowly or not at all reflected in fully adult specimens. Introduced garden pests in North America.

Sculpture of either microscopic spiral striae, or low ribs extending around the whorls and cut into beaded sculpture by coarser spiral striae. . . . . . . . . . . . . . . Family: Haplotrematidae, p. 122 Key to the Genera of Haplotrematidae (a Shell larger, to 29 mm wide in 5 to 5½ whorls (specimens from the eastern part of its range may be smaller). Color light greenish, greenish-brown, or yellowish-brown. Upper (palatal) lip margin flattened or slightly deflected. Sculpturing of growth-wrinkles and very fine, microscopic spiral striae.

Download PDF sample

Rated 4.47 of 5 – based on 15 votes