Beaked clams

Beaked clams
Small beak mussel ( Nuculana minuta )
Systematics
Sub-stem : Shell molluscs (Conchifera) Class : Mussels (Bivalvia) Subclass : Protobranchia Order : Nuculanida Superfamily : Nuculanoidea Family : Beaked clams
Scientific name
Nuculanidae
H. Adams & A. Adams , 1858

The bill shells (Nuculanidae) are a shell - Family from the order of Nuculanida in the subclass of Protobranchia . The oldest representatives of the Nuculanidae come from the Ordovician.

features

The housings, which have the same flaps, are broad to narrowly triangular or transversely ovoid, usually more or less strongly extended beak-like towards the rear. They are up to 10 centimeters long. The ligament is z. T. shifted inwards. The angled or curved edge of the lock is separated into an anterior and posterior part by ligaments and vertebrae . On the lock plate sit numerous similar teeth that z. T. are angled. The surface is provided with more or less strong growth lines or strips. A jacket bay is available because the animals have siphons. The mouth flap buttons are relatively long. The shell is aragonitic with a homogeneous or cross-lamellar microstructure.

Geographical distribution and habitat

The Nuculanidae family is found worldwide. The species occur from shallow water to greater depths.

Taxonomy

The taxon was established in 1854 by John Edward Gray as Ledadae. However, the name received no attention in the literature. The name Nuculanidae was established in 1858 by the brothers Henry and Arthur Adams . The following compilation follows the MolluscaBase .

• Beak clams family (Nuculanidae)
  • Ledellinae Allen & Sanders subfamily , 1982
    • Ledella Verrill & Bush, 1897
    • Ledellina Filatova & Schileyko, 1984
  • Subfamily Nuculaninae H. Adams & A. Adams, 1858
    • Jupiteria Bellardi, 1875
    • Lembulus Risso, 1826
    • Nuculana Link, 1807
      • Small beak mussel ( Nuculana minuta (Müller, 1776))
      • Large beaked mussel ( Nuculana pernula (Müller, 1779))
    • Saccella Woodring, 1925
  • Subfamily Parayoldiellinae Filatova & Schileyko, 1984
    • Parayoldiella Filatova, 1971
  • Subfamily Poroledinae Scarlato & Starobogatov, 1979
    • Lamellileda Cotton, 1930
    • Poroleda Hutton, 1893
    • Propeleda Iredale, 1924
    • Robaia Habe, 1958
  • Subfamily Veteranellinae Chen, Liu & Lan, 1983
    • Costatoleda Roth from Telegd, 1914
    • Costinuculana Ayoub-Hannaa, Abdelhady & Fürsich, 2017
    • Eleganuculana Chen & Yang, 1983
    • Girtyana Elias, 1956
    • Glyptoleda Fletcher, 1945
    • Hilgardia Harris & Palmer, 1946
    • Indoculana Kanjilal and Singh, 1973
    • Ledoides Chen, Wen & Lan in Gu et al., 1976
    • Nucundata Waterhouse, 1965
    • Qiongzhounia Lan in Chen, Liu & Lan, 1983
    • Teinonuculana Zhang in Zhang, Wang & Zhou, 1977
    • Veteranella Patte, 1926
    • Xiaoshuiculana Chen in Chen, Liu, & Lan, 1983
    • Zealeda Marwick, 1924
  • indet. Subfamily
    • † Pseudoportlandia Woodring, 1925

The MolluscaBase currently lists over 230 species in the Nuculanidae family.

supporting documents

literature

• S. Peter Dance, Rudo von Cosel (arrangement of the German edition): The great book of sea shells. 304 p., Verlag Eugen Ulmer, Stuttgart, 1977 ISBN 3-8001-7000-0
• Rudolf Kilias: Lexicon marine mussels and snails. 2nd edition, 340 p., Verlag Eugen Ulmer, Stuttgart 1997 ISBN 3-8001-7332-8
• Fritz Nordsieck: The European sea shells (Bivalvia). From the Arctic Ocean to Cape Verde, the Mediterranean Sea and the Black Sea. 256 p., Gustav Fischer Verlag, Stuttgart 1969 (p. 83/4)
• Guido Poppe, Yoshihiro Goto: European Seashells Volume 2 (Scaphopoda, Bivalvia, Cephalopoda) . 221 pp., Verlag Christa Hemmen, Wiesbaden 1993 (2000 unc. Reprint), ISBN 3925919104
• Rainer Willmann: Mussels and snails of the North and Baltic Seas. 310 pp., Neumann-Neudamm, Melsungen 1989, ISBN 3-7888-0555-2

Individual evidence

1. ↑ John Edward Gray: A revision of the arrangement of the familie of bivalve shells (Conchifera). Annals and Magazine of Natural History, ser. 2, 13 (77): 408-418, London 1854 Online at www.biodiversitylibrary.org (p. 412).
2. ^ Henry Adams & Arthur Adams: The genera of recent Mollusca; arranged according to their organization. In three volumes. Vol. II. Pp. 1–661, London, Van Voorst, 1858. Online at www.biodiversitylibrary.org (p. 660)
3. ↑ ^{a b} MolluscaBase: Nuculanidae H. Adams & A. Adams, 1858 (1854)
4. ↑ ^{a b} Wagih S. Ayoub-Hannaa, Ahmad A. Abdelhady, Franz T. Fürsich: Costinuculana magharensis n. Gen. N. Sp. (Bivalvia, Nuculanidae) from the Middle Jurassic of Gebel Maghara, North Sinai, Egypt. Journal of Paleontology, 91 (3): 434-443, 2017 doi : 10.1017 / jpa.2016.161