Author: Barrande, J.
Title: Acéphalés. Etudes locales et comparatives. Extraits du système Silurien du centre de la Bohème. Vol. VI. Acéphalés.
Description: 1881 xxxii, 536 p., 10 double-sized lithographed plates with explanatory text leaves. paperbound (printed covers). The present work contains four publications, viz. I. ̑tudes sur les genres des ac̩phal̩s siluriens de la Boh̻me; II. Distribution verticale des genres et esp̬ces d'ac̩phal̩s, dans le bassin silurien de la Boh̻me; III. Variations observ̩es parmi les ac̩phal̩s siluriens de la Boh̻me; IV. Connexions sp̩cifiques ̩tablies parmi les ac̩phal̩s, entre la Boh̻me et les contr̩es ̩trang̬res. The plates are numbered 16, 18, 22, 35, 168, 172, 184, 189, 231, and 361, yet the work is complete as intended. Uncut. Paper a bit age-toned, as usual, rear cover with a split at the beginning of plate section, but binding still holding, otherwise a very good copy. Rare.

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