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Laibl, C. F.; Schroedl, M. and Kohnert, P. C. (2019): 3D-microanatomy of a keystone planktonic species, the northern polar pteropod Limacina helicina helicina (Gastropoda: Heterobranchia). In: Journal of Molluscan Studies, Vol. 85: pp. 48-65

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Abstract

We present the first full anatomical investigation of Limacina helicina helicina (Phipps, 1774), based on an adult from western Greenland. 3D-reconstruction of histological semi-thin serial sections was used to reconstruct all major organ systems. Anatomical differences between helicoid and straight-shelled thecosomes, and organ homologies with the putative sister group Anaspidea are summarized with regard to recent phylogenetic advances. Our results agree with the existing morphology-based taxonomy and contribute substantially to current knowledge on limacinid (micro-)anatomy.

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