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Showing 1 to 7 of 7 for “"Polyplacophora"”.
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The chiton fauna (Mollusca: Polyplacophora) of South Africa
Chitons are a diverse class of molluscs inhabiting marine waters and constitute a significant, yet relatively underexplored group of invertebrates in South Africa. Over the past three decades, taxonomic research has resulted in a pronounced increase in the description of regional chiton species, …
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Resource Partitioning in Seven Species of Sympatric Intertidal Chitons (Mollusca: Polyplacophora)
<p>Space (intertidal height and location/exposure on the rock surface), and food {gut contents) were partitioned among 7 species of sympatric intertidal chitons: Mopaliidae - Mopalia hindsii, M. ciliata, ~· lignosa, M. muscosa, and Katharina tunicata; and Ischnochitonidae - Tonicella lineata and …
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Contribuição ao conhecimento dos poliplacóforos do Estado do Rio de Janeiro, Brasil (Mollusca; polyplacophora)
Eleven species of chitones distributed by five genera belonging to the families Lepidopleuridae, Ischnochitonidae and Chaetopleuridae, all from the coast of the state of Rio de Janeiro, Brazil, are studied in this work. The taxonomic and morphological aspects are emphazised, aside from observations …
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Comparative neuroanatomy of Mollusks and Nemerteans in the context of deep metazoan phylogeny
… phylum Mollusca: Caudofoveata, Solenogastres, Polyplacophora, and Scaphopoda. By comparing the neuroanatomy of those different taxa it is demonstrated that the presence of two pairs of nerve cords of the medullary type is the main unifying feature of the three non-conchiferan taxa. In other …
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Design of a multifunctional biomineralized armor system : the shell of chitons
… principles of the shells of chitons (Mollusca: Polyplacophora). The chiton shell consists of eight plates encircled by a structure known as a girdle, which is often covered by scales. The shell provides protection while permitting the flexibility needed to conform to rough substrata, as well as …
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MICROMORPHOLOGY AND GENE EXPRESSION IN MUSCLE AND SHELL DEVELOPMENT OF THE MOLLUSCA
… basal representatives of the molluscan classes Polyplacophora, Bivalvia, Scaphopoda, and Gastropoda. Special reference is given to the shell musculature. In addition, aspects of the myo-anatomy of adult Solenogastres are reconsidered. A further part of this study deals with scaphopod shell …
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Rare and problematic taxa from the Much Wenlock Limestone Formation
… here as molluscs, probably the sister group of Polyplacophora + Conchifera. Using a similar approach, Cornulites is interpreted as a stem group anthozoan. Cornulites species show various life positions: C. scalariformis Vine, 1882, attached itself to live brachiopods, with its aperture …