Die Schnecken (Gastropoda Prosobranchia) der deutschen Meeresgebiete und brackigen Küstengewässer

Abstract

Following a systematic treatment of the Bivalvia (Ziegelmeier 1957), this paper presents a taxonomic survey of the Gastropoda species found in marine and coastal waters near Germany; it includes species known from other countries bordering the North Sea and Baltic Sea. Employing taxonomic keys and numerous photographic illustrations, determinations are based on shell structures. Definitions of technical terms and explanations of pertinent details of gastropod anatomy are given in order to make determinations possible also for beginning students and interested laymen. © 1966 Biologischen Anstalt Helgoland.