Possibly representive of the primitive molluscan condition or a secondary reduction from more advanced, shelled ancestors. Some taxonomists refer to Class Amphineura with Aplacophora being a subclass. The body is elongated and worm-like and enveloped by the mantle. 3. Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students.ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. pl. Upload media Wikipedia Wikispecies: Instance of: taxon: Common name; Among the shell-less molluscs ("Aplacophora") there are about 340 of the most primordial molluscs to be found on earth. Amphineura in part Ref. All known modern forms are shell-less: only some extinct primitive forms possessed valves.The group comprises the two clades Solenogastres (Neomeniomorpha) and Caudofoveata (Chaetodermomorpha), which between them contain 28 families and about 320 species. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Aplacophora class of molluscs. Reference: Class - Aplacophora {The Solenogasters} H. v. Ihering, 1876 (2-0-0-0-0-0-0-0-0-0-0-0-0) Syn. Subclass Chaetodermomorpha (Caudofoveata) Worm-shaped; covered by cuticle and … As their scientific name Aplacophora literally states, the members of this group actually are devoid of a shell and in that regard are unique among molluscs. This page shows answers to the clue Aplacophora.Aplacophora may be defined as “Aplacophora is an order of the Amphineura class of molluscs”, “Neomeniomorpha (Solenogastres) Aplacophora is a monophyletic group of small” and “(n. Some recent literature, and recent molecular evidence, indicates that the Aplacophora may be polyphyletic, and therefore these taxonomists divide Solenogastres … )A division of Amphineura in which the body is naked or covered with slender spines or setae”. We found one answer for “Aplacophora” . Members of the class Aplacophora are mostly hermaphroditic. Families and genera of all named Aplacophora, number of described species, and geographic and depth ranges of genera. This index recognizes Aplacophora as a separate class. Age/Size Growth Other articles where Aplacophora is discussed: mollusk: Annotated classification: Class Aplacophora Worm-shaped and without shells; marine, mostly in deep water. Aplacophora or Solenogastres: 1. Aplacophora Home Page. ... Common names Synonyms Predators Reproduction Maturity Spawning Fecundity Eggs Egg development. Epimenia verrucosa. 833). Vernacular names [ edit ] Catalog Number: YPM IZ 049958: Department: Invertebrate Zoology: Scientific Name: Aplacophora: Taxonomy: Animalia; Mollusca; Aplacophora: Identification: Abbott, 1989 p 407 . Etymology of Aplacophora: A = not or without, Plak = a plate or flat object, Phora = to bear (“Not having a shell”). Aplacophora is a monophyletic group of small, deep-water, exclusively benthic, marine molluscs found in all oceans of the world. Number of Species: Catalogue of Life: 2019 Annual Checklist = 28 families, 425 species; Molluscabase = 431. The shell is absent and the body is covered with a cuticular mantle enclosing spicules of calcified material. Condition of Typical Molluscan Characteristics in Aplacophora: Radula (a rasping “tongue” with chitinous teeth) = Absent or present. 2. Life cycle: Eggs hatch into lecitotrophic larvae which later develop into adults (Ref. Mollusks are soft-bodied invertebrates of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body. Enclosing spicules of calcified material spines or setae” Aplacophora or Solenogastres: 1 primordial molluscs to be found on.... Aplacophora '' ) there are about 340 of the world, we can not guarantee information! 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