pl. 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. 833). Epimenia verrucosa. The shell is absent and the body is covered with a cuticular mantle enclosing spicules of calcified material. Some recent literature, and recent molecular evidence, indicates that the Aplacophora may be polyphyletic, and therefore these taxonomists divide Solenogastres … 2. 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. Aplacophora or Solenogastres: 1. Among the shell-less molluscs ("Aplacophora") there are about 340 of the most primordial molluscs to be found on earth. Families and genera of all named Aplacophora, number of described species, and geographic and depth ranges of genera. Life cycle: Eggs hatch into lecitotrophic larvae which later develop into adults (Ref. Some taxonomists refer to Class Amphineura with Aplacophora being a subclass. 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. )A division of Amphineura in which the body is naked or covered with slender spines or setae”. Condition of Typical Molluscan Characteristics in Aplacophora: Radula (a rasping “tongue” with chitinous teeth) = Absent or present. Number of Species: Catalogue of Life: 2019 Annual Checklist = 28 families, 425 species; Molluscabase = 431. This index recognizes Aplacophora as a separate class. Etymology of Aplacophora: A = not or without, Plak = a plate or flat object, Phora = to bear (“Not having a shell”). 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. Aplacophora class of molluscs. Aplacophora Home Page. The body is elongated and worm-like and enveloped by the mantle. Abbott, 1989 p 407 . Catalog Number: YPM IZ 049958: Department: Invertebrate Zoology: Scientific Name: Aplacophora: Taxonomy: Animalia; Mollusca; Aplacophora: Identification: Members of the class Aplacophora are mostly hermaphroditic. We found one answer for “Aplacophora” . Other articles where Aplacophora is discussed: mollusk: Annotated classification: Class Aplacophora Worm-shaped and without shells; marine, mostly in deep water. 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).. Amphineura in part Ref. Reference: Class - Aplacophora {The Solenogasters} H. v. Ihering, 1876 (2-0-0-0-0-0-0-0-0-0-0-0-0) Syn. 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. Aplacophora is a monophyletic group of small, deep-water, exclusively benthic, marine molluscs found in all oceans of the world. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Age/Size Growth About 300 species. Possibly representive of the primitive molluscan condition or a secondary reduction from more advanced, shelled ancestors. Vernacular names [ edit ] Subclass Chaetodermomorpha (Caudofoveata) Worm-shaped; covered by cuticle and … Upload media Wikipedia Wikispecies: Instance of: taxon: Common name; ... 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