http://naturemappingfoundation.org/natmap/mollusks/7polyfile.html Web14 apr. 2011 · Chitons are protected by a shell consisting of eight plates. The plates are dotted with hundreds of small eyes called ocelli. Each one contains a layer of pigment, a retina and a lens. People...
Monster or multiplacophoran: A teratological specimen of the chiton …
WebPolyplacophora. Polyplacophoran molluscs, or chitons (Fig. 2 ), have a dorsal shell that is secreted as eight valves or plates. The plates of individual animals differ in size and … http://web.mit.edu/cortiz/www/Chiton.pdf crystalmaker x for mac
Katharina MARINe - University of California, Santa Cruz
Web1 okt. 2024 · In this paper, we explore the structure and function of eyespots in chitons. To investigate the internal structure of these eyespots, we made epoxy resin casts of the sensory organs embedded in the anterior shell plates of C. tuberculatus, C. marmoratus, C. viridis and C. squamosus.To evaluate the external structure of the eyespots, we imaged … After a chiton dies, the individual valves which make up the eight-part shell come apart because the girdle is no longer holding them together, and then the plates sometimes wash up in beach drift. The individual shell plates from a chiton are sometimes known as butterfly shells due to their shape. Meer weergeven Chitons are marine molluscs of varying size in the class Polyplacophora (/ˌpɒlipləˈkɒfərə/), formerly known as Amphineura. About 940 extant and 430 fossil species are recognized. They are … Meer weergeven Shell All chitons bear a protective dorsal shell that is divided into eight articulating aragonite Meer weergeven Chitons are eaten in several parts of the world. This includes islands in the Caribbean, such as Trinidad, Tobago, The Bahamas, … Meer weergeven Chitons have a relatively good fossil record, stretching back to the Cambrian, with the genus Preacanthochiton, known from fossils found in Late Cambrian deposits in Missouri, being classified as the earliest known polyplacophoran. However, the exact … Meer weergeven Chitons live worldwide, from cold waters through to the tropics. They live on hard surfaces, such as on or under rocks, or in rock crevices. Some species live quite high in the intertidal zone and are exposed to the air and light for … Meer weergeven Similar to many species of saltwater limpets, several species of chiton are known to exhibit homing behaviours, journeying to feed and then returning to the exact … Meer weergeven A chiton creeps along slowly on a muscular foot. It has considerable power of adhesion and can cling to rocks very powerfully, like a limpet. Chitons are … Meer weergeven Web31 mrt. 2024 · The Chiton shell is divided into eight (rarely seven) plates, or valves. The valves are interlocked, and are surrounded by a tissue called the girdle. The Eastern Beaded Chiton may reach one inch in size. As the common name implies, the external surface of the valves are covered with minute beads. dwts ireland winner