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. 1894 Excerpt: ...whose area of distribution includes subareas, where the environmental factors are varied to the extent of opposite or nearly opposite, as well as intermediate conditions, would exhibit extrem...
Paperback: 342 pages
Publisher: RareBooksClub.com (March 6, 2012)
Product Dimensions: 7.4 x 0.7 x 9.7 inches
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s a multitude of intermediate and what may be regarded as connecting facies or characters. » » » B. nuz Broil., Sby., veutrieose variety = Reeve's type. Several examples, Charles Island (Nos. 104822, 104963, and 122856). This is the Reeve type of mix, a more ventricose, much larger, aud freer growing form than the typical and original mix of Broderip. The color, etc., quoting Reeve,is "olive-brown stained with rusty red; the aperture is frequently compressed at the sides so as to give a square aspect." Some examples hint, in the matter of color, at dark cafeaulait. The color is sometimes a dark reddish-brown; of No. 104822 there are three specimens; No. 104963, two; these are rather globose, and coarsely sculptured; of 122856, there are five examples, all in good condition. It is apparently an intercised aspect of this ventricose variety (i. e., Reeve's type of mix) that has received the names of asperatus from Albers, and incrassatus from Pfeiffer (Mus. No. 23277). Reibisch gives a figure of Pfeifler's species in plate 1, 4a, and adds a varietal name to the same of sulcalus, Jigs. 4b and 4c; while his figure 4d is given as incrassatus variety=nuciformi8 Petit, which is probably correct. Reibisch's figure 3, pi. 1, of asperatus Albers, indicates the propriety of its connection with the above. B. mix, elongated variety. Charles Island; several examples (Mus. Nos. 118573, 122855, and 23277). This is an elongated form of mix, sometimes strongly longitudinally ribbed, and probably includes verrucosus Pfr., as a variety. Nos. 118573, two e...