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. 1909 Excerpt: ...bands, which are about as wide as the ribs, and render their junction with the ribs tuberculate. Sutures strongly impressed. Periphery of the last whorl well rounded. Base moderately long, marked by the faint continuations of the axial ribs, and about ten spiral lirations, which are narrower and less strongly developed ...
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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. 1909 Excerpt: ...bands, which are about as wide as the ribs, and render their junction with the ribs tuberculate. Sutures strongly impressed. Periphery of the last whorl well rounded. Base moderately long, marked by the faint continuations of the axial ribs, and about ten spiral lirations, which are narrower and less strongly developed about the umbilical area. Aperture broadly oval; posterior angle acute; outer lip thin, showing the external markings within; columella strongly curved, and completely reenforced by the base. The specimen described and figured (Cat. no. 9465, U.S.N.M.) was collected by Cooper at San Pedro, California. It has nine postnuclear whorls and measures: Length 6.6 mm., diameter 2.1 mm. The coloration of this species varies considerably; it may be unicolor, white to chestnut, or diversely banded. The following specimens have been examined: TURBONILLA (DUNKERIA) HIPOLITENSIS, new species. Plate 12, figs. 8, 8a. Shell milk-white, with a light yellow narrow band midway between the sutures. Nuclear whorls small, two and one-half, forming a depressed helicoid spire, whose axis is at right angles to that of the succeeding turns, in the first of which it is about one-third immersed. Post-nuclear whorls moderately rounded, slightly shouldered at the summit but very slightly protracted at the suture, marked by moderately strong, rounded, retractive axial ribs, of which 18 occur upon the second, 20 upon the third, 24 upon the fourth and fifth, and 30 upon the penultimate turn. Intercostal spaces as wide as the ribs, crossed by five series of broad spiral pits, which are not quite as wide as the five raised cords which they bound, and which render the ribs somewhat nodulose at their junction. Periphery and base of the last whorl well rounded, the latter marked b...
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Add this copy of A Monograph of West American Pyramidellid Mollusks to cart. $54.87, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2011 by Nabu Press.
