Comparative external morphology of the Conus osphradium (Mollusca: Gastropoda)

Seller: ConchBooks, Harxheim, GermanyConchBooks

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The osphradium is larger and more complex in Conus, a large and taxonomically difficult genus, than in other prosobranch gastropods. We examined intra- and interspecific variation in external anatomical characters of this major chemoreceptor organ, how these relate to ecological characteristics, and the potential of the osphradium to aid taxonomic differentiation, among 22 species of Conus. Six quantitative characters convey the main features of the Conus osphradium: its area, width-length ratio, curvature, orientation relative to the animal's anterior-posterior axis, density of sensory leaflets, and number of digitiform ridges on sensory leaflets. Species in 85% of pairwise comparisons differed significantly with respect to at least one variable. Multivariate discriminant function analysis successfully differentiated other species. Osphradium size relative to body size varied significantly with habitat type, and number of digitiform ridges varied with food type, but other characters were independent of ecological attributes and may potentially be useful in phylogenetic reconstruction. 15 pp., 6 figs, 4 tabs, gr. 8.

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Bibliographic details

Title
Comparative external morphology of the Conus osphradium (Mollusca: Gastropoda)
Author
Spengler, H. A. & Kohn, A. J.
Publication year
1995

ConchBooks

Harxheim, Germany

4-star seller

AbeBooks seller since March 1, 2007

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Founded in 1985 we are specialized in worldwide literature on Mollusca and marine invertebrates. Our publishing house has meanwhile published approximately 60 titles on that field of interest. We have stocks of most available international books on Malacology and a huge amount of antiquarian literature, even of the latter most titles are only available once.

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Weichtiere / Shells, Schnecken / Snails & Slugs, Muscheln / Bivalves, Tintenfische / Squids / Octopusses / Ammonites, Malacology, Conchology, Marine Biology

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ConchBooks

Germany