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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 ...
Chitonidae is a family of chitons or polyplacophorans, marine mollusks whose shell is composed of eight articulating plates or valves. There are fifteen extant genera in three subfamilies . Subfamilies and genera
Acanthochitonidae chitons are found in a variety of marine habitats, including rocky intertidal zones, coral reefs, and seagrass beds. They are also found in deep sea environments, with some species occurring as deep as 3,000 meters. Acanthochitonidae chitons are known to be active grazers, feeding primarily on algae and detritus.
The genus Chiton has been split into several subgenera as follows: [2]. Subgenus Chiton (Chiton) Linnaeus, 1758. Chiton (Chiton) albolineatus Broderip & Sowerby, 1829; Chiton (Chiton) articulatus Sowerby in Broderip & Sowerby, 1832
Like other chitons, it is a slow moving grazer that consumes several species of brown and red algae including kelps, sea lettuce, and encrusting diatoms. They're also known to eat sponges, tiny barnacles, spirobid polychaetes, and bryozoans. Their predators include sea urchins, leather stars, black oystercatchers, glaucous-winged gulls, and humans.
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Chiton magnificus is edible. Although relatively uncommon, it is one of the few commercially important chitons in its range, others being the even larger, up to 23 cm (9.1 in), spiny Acanthopleura echinata and the smaller, up to 4.5 cm (1.8 in), brownish Chiton granosus. [2] [5]
"A New Species of Pennsylvanian Polyplacophora (Mollusca) from Texas". Journal of Paleontology. 59 (5): 1324–1326. JSTOR 1305023. A. ALLYNSMITHI HOARE, R. D., R. H. MAPES, AND D. E. ATWATER. 1983. Pennsylvanian Polyplacophora (Mollusca) from Oklahoma and Texas. Journal of Paleontology, 57:992-1000 A. depressolatus Hoare, Richard D. (June 1999 ...