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La familia Pyramidellidae Gray, 1840 (Mollusca, Gastropoda, Heterostropha) en África Occidental. 3. El género Chrysallida s. l.

Peñas, Anselmo; Rolán, Emilio

The Atlantic species which we attribute to the genera Chrysallida s. l. (Heterostropha, Pyramidellidae) cited or found in the West coast of Africa, from the Mediterranean until South Africa, are revised. In total we consider 44 taxa with specific validity, from which 4 are cited by first time in the study area (C. emaciata, C. ghisotti, C. nivosa and C. palazzii), for 11 the known distribution area is enlarged (C. clathrata, C. dimidiata, C. dollfusi, C. excavata, C. fenestrata, C. impercepta, C. interstincta, C. intumescens, C. juliae, C. sergei and C. sigmoidea), 12 are new for science. All them are described and most of them are figured. Further more, some taxa considered valid until now are passed at synonymy.
At the end of the work a dicotomic key for the identification of all the signalized species, a table showing their geographic distribution and a synonym list, are presented.

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