A congruent topology for deep gastropod relationships. [PDF]
Gastropod molluscs are among the most diverse and abundant animals in the oceans, and are successful colonizers of terrestrial and freshwater environments.
Cunha TJ, Giribet G.
europepmc +2 more sources
On growth and form of irregular coiled-shell of a terrestrial snail: Plectostoma concinnum (Fulton, 1901) (Mollusca: Caenogastropoda: Diplommatinidae). [PDF]
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
europepmc +5 more sources
Growth and morphogenesis of the gastropod shell. [PDF]
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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Morphological grounds for the obligate aerial respiration of an aquatic snail: functional and evolutionary perspectives. [PDF]
The freshwater caenogastropod family Ampullariidae is emerging as a model for a variety of studies, among them, the evolution of terrestriality. A common character of the family is that all its members bear a lung while retaining the ancestral gill. This
Rodriguez C+3 more
europepmc +3 more sources
Conservation of ParaHox genes' function in patterning of the digestive tract of the marine gastropod Gibbula varia. [PDF]
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.
europepmc +4 more sources
Dextral and sinistral Amphidromus inversus (Gastropoda: Pulmonata: Camaenidae) produce dextral sperm. [PDF]
Coiling direction in pulmonate gastropods is determined by a single gene via a maternal effect, which causes cytoskeletal dynamics in the early embryo of dextral gastropods to be the mirror image of the same in sinistral ones.
Schilthuizen M, van Heuven BJ.
europepmc +3 more sources
Inducible Defenses with a "Twist": Daphnia barbata Abandons Bilateral Symmetry in Response to an Ancient Predator. [PDF]
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
europepmc +5 more sources
At the limits of a successful body plan - 3D microanatomy, histology and evolution of Helminthope (Mollusca: Heterobranchia: Rhodopemorpha), the most worm-like gastropod. [PDF]
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.
europepmc +3 more sources
Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical-Functional Responses. [PDF]
In this work, the progress of structural materials is reviewed, the strengthening mechanisms of different types of structures are highlighted, and the impact of architecture design on the performance of advanced materials is discussed. Finally, the challenges and opportunities of structural innovation of advanced materials in improving material ...
Dai H+5 more
europepmc +2 more sources
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
semanticscholar +1 more source