Growth and morphogenesis of the gastropod shell. [PDF]
Proc Natl Acad Sci U S A, 2019 Significance Mollusc shells are emblematic of the morphological diversity in nature. They are important models for understanding the evolution of form; they are all variations on the same basic geometrical groundplan, their shapes can be directly related
Johnson AB, Fogel NS, Lambert JD.
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On growth and form of irregular coiled-shell of a terrestrial snail: Plectostoma concinnum (Fulton, 1901) (Mollusca: Caenogastropoda: Diplommatinidae). [PDF]
PeerJ, 2014 The molluscan shell can be viewed as a petrified representation of the organism’s ontogeny and thus can be used as a record of changes in form during growth.
Liew TS +4 more
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Conservation of ParaHox genes' function in patterning of the digestive tract of the marine gastropod Gibbula varia. [PDF]
BMC Dev Biol, 2010 Background: Presence of all three ParaHox genes has been described in deuterostomes and lophotrochozoans, but to date one of these three genes, Xlox has not been reported from any ecdysozoan taxa and both Xlox and Gsx are absent in nematodes.
Samadi L, Steiner G.
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Inducible Defenses with a "Twist": Daphnia barbata Abandons Bilateral Symmetry in Response to an Ancient Predator. [PDF]
PLoS One, 2016 Predation is one of the most important drivers of natural selection. In consequence a huge variety of anti-predator defenses have evolved in prey species.
Herzog Q +3 more
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At the limits of a successful body plan - 3D microanatomy, histology and evolution of Helminthope (Mollusca: Heterobranchia: Rhodopemorpha), the most worm-like gastropod. [PDF]
Front Zool, 2013 Background: Gastropods are among the most diverse animal clades, and have successfully colonized special habitats such as the marine sand interstitial. Specialized meiofaunal snails and slugs are tiny and worm-shaped.
Brenzinger B, Haszprunar G, Schrödl M.
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Dextral and sinistral Amphidromus inversus (Gastropoda: Pulmonata: Camaenidae) produce dextral sperm. [PDF]
Zoomorphology, 2011 Schilthuizen M, van Heuven BJ.
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Israel Journal of Ecology & Evolution, 2023 We studied and found that the populations of two gastropod species in the inter-tidal zone of the Red Sea at Eilat demonstrate a predominantly dextral chirality of their shells.
R. Yosef, Tamar Kadosh, J. Kosicki
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Palaeontology, 2020 Exceptionally well‐preserved impressions of two bundles of bristles protrude from the apertures of small, spiral shells of Pelagiella exigua, recovered from the Kinzers Formation (Cambrian, Stage 4, ‘Olenellus Zone’, c. 512 Ma) of Pennsylvania.
R. Thomas, B. Runnegar, Kerry Matt
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Streptoneury Is Independent From Ontogenetic Torsion in the Caenogastropod Snail Marisa Cornuarietis
, 2021 A hallmark in snails’ anatomy is the conspicuous crossing of the pleurovisceral nerve cords present in all but the most derived gastropod clades. This feature is called streptoneury and hitherto near-universally believed to derive from the process of ...
J. Morath +6 more
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Developmental role of dpp in the gastropod shell plate and co-option of the dpp signaling pathway in the evolution of the operculum [PDF]
, 2012 The operculum is a novel structure in gastropod molluscs. Because the operculum shows notable similarities to the shell plate, we asked whether there were an evolutionary link between these two secretory organs.
Hashimoto Naoki +3 more
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