Upload media Wikipedia Wikispecies: Instance of: taxon: Common name; Reference: Class - Aplacophora {The Solenogasters} H. v. Ihering, 1876 (2-0-0-0-0-0-0-0-0-0-0-0-0) Syn. Abbott, 1989 p 407 . Number of Species: Catalogue of Life: 2019 Annual Checklist = 28 families, 425 species; Molluscabase = 431. 833). Among the shell-less molluscs ("Aplacophora") there are about 340 of the most primordial molluscs to be found on earth. 3. Subclass Chaetodermomorpha (Caudofoveata) Worm-shaped; covered by cuticle and … 2. Other articles where Aplacophora is discussed: mollusk: Annotated classification: Class Aplacophora Worm-shaped and without shells; marine, mostly in deep water. pl. Aplacophora Home Page. Etymology of Aplacophora: A = not or without, Plak = a plate or flat object, Phora = to bear (“Not having a shell”). Aplacophora class of molluscs. The shell is absent and the body is covered with a cuticular mantle enclosing spicules of calcified material. Aplacophora is a monophyletic group of small, deep-water, exclusively benthic, marine molluscs found in all oceans of the world. The body is elongated and worm-like and enveloped by the mantle. Vernacular names [ edit ] Amphineura in part Ref. About 300 species. 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. ... Common names Synonyms Predators Reproduction Maturity Spawning Fecundity Eggs Egg development. Possibly representive of the primitive molluscan condition or a secondary reduction from more advanced, shelled ancestors. Life cycle: Eggs hatch into lecitotrophic larvae which later develop into adults (Ref. Condition of Typical Molluscan Characteristics in Aplacophora: Radula (a rasping “tongue” with chitinous teeth) = Absent or present. We found one answer for “Aplacophora” . 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. 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. 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. Age/Size Growth Members of the class Aplacophora are mostly hermaphroditic. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Epimenia verrucosa. Some recent literature, and recent molecular evidence, indicates that the Aplacophora may be polyphyletic, and therefore these taxonomists divide Solenogastres … This index recognizes Aplacophora as a separate class. 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. The Solenogastres (less often referred to as Neomeniomorpha), common name the solenogasters, are one subclass of small, worm-like, shell-less molluscs (Aplacophora), the other subclass being the Caudofoveata (Chaetodermomorpha).. )A division of Amphineura in which the body is naked or covered with slender spines or setae”. Families and genera of all named Aplacophora, number of described species, and geographic and depth ranges of genera. Aplacophora or Solenogastres: 1. 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