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The distribution of Chiton magnificus ranges along the Pacific coast of South America from Cape Horn in Chile [3] to San Lorenzo Island in Peru. [2] Although there are old claimed records of this species from the Galápagos Islands, these are now considered incorrect.
Animals out of water only have about 73% the respiration of submerged animals, and likely incur an oxygen debt while out of water that must be repaid once resubmerged. [4] When submerged, gas exchange occurs by water flowing from the anterior portion of the chiton into the mantle cavity where the ctenidia (gills) reside in the pallial grooves.
In contrast to many other mollusc classes, aplacophorans have no shell, and are instead covered by aragonitic sclerites (calcareous spicules), which can be solid or hollow.. These spicules can be arranged perpendicular to one another within the cuticle to form a skeleton, stick up to form a palisade, or can lie flat against the cutic
Larvae of chitons: First image is the trochophore, second is in metamorphosis, third is an immature adult. Chitons have separate sexes, and fertilization is usually external. The male releases sperm into the water, while the female releases eggs either individually, or in a long string. In most cases, fertilization takes place either in the ...
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Image credits: Chris_Mench In 2023, comedian Ellory Smith retweeted a photo of actor Ben Schwartz recreating Billy Crystal's character Harry's look from the cult classic When Harry Met Sally. In ...
Chitons (Polyplacophora) in South Africa include: Ischnochitonidae. Textile chiton Ischnochiton textilis (Gray, 1828) (Namibia to central KwaZulu-Natal) [1] [2] Dwarf chiton Ischnochiton oniscus (Krauss, 1848) (Cape Columbine to Mozambique) [1] [2] Ribbed scale chiton Ischnochiton bergoti (Velain, 1877) (Namibia to Cape Point) [1] [2 ...
Aplacophora / æ p l ə ˈ k ɒ f ər ə / is a possibly paraphyletic taxon. This is a class of small, deep-water, exclusively benthic, marine molluscs found in all oceans of the world. [1]