Donax cuneatus

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Donax cuneatus
Donax cuneatus, Ikumi Kochi 2019.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Cardiida
Family: Donacidae
Genus: Donax
Species:
D. cuneatus
Binomial name
Donax cuneatus
Linnaeus, 1758

Donax cuneatus, the cradle donax or cuneate wedge shell, is a species of small saltwater clam, a marine bivalve mollusc species in the family Donacidae.

Contents

Distribution

This species is reported from the Seychelles, Sri Lanka, India, Malaysia, Vietnam, Indonesia, China, the Philippines, Australia, New Caledonia, Fiji, and Vanuatu. [1]

Description

Right and left valve of the same specimen:

Inhabits the intertidal zone. [2] The shells are shiny grayish white, with brownish or purple bands radiating from the umbos. As is typical in the wedge clams, Donax cuneatus is triangular and compressed, with the anterior end more rounded than the posterior end. [3] [4] The shell is medium-sized, 12mm at reproductive maturity up to a maximum size of 23mm. [5] The exterior of the shell is shiny and sculptured with fine concentric ridges and threadlike radial ridges, except on the posterior end which is more rugose. Lunules are found on both valves. [3]    In the interior of the shell, the exceptionally large pallial sinus [4] is indicative of the long siphons of bivalves that dig themselves deep into sand or mud substrates. [6] In some areas Donax cuneatus is harvested by indigenous people as a minor subsistence food. [7]


References

  1. ↑ Atlas of Living Australia. "Species: Donax (Latona) cuneatus (Cuneate Wedge Shell)". bie.ala.org.au. Retrieved 2024-06-02.
  2. ↑ McLachlan, Anton; Dugan, J.E.; Defeo, O.; Ansell; Hubbard, D.M.; Jaramillo, E.; Penchaszedah, P.E. (1963). "Beach Clam Fisheries". Oceanography and marine biology. Internet Archive. Aberdeen : Aberdeen University Press. p. 168.{{cite book}}: CS1 maint: publisher location (link)
  3. 1 2 Rao, N. V. Subba; Dey, A. (1986). Contributions to the Knowledge of Indian Marine Molluscs—Family-Donacidae (2). Zoological Survey of India. pp. 11–14.
  4. 1 2 Dance, S. Peter (1992). Shells. Internet Archive. New York : Dorling Kindersley ; Boston, Mass. : Distributed by Houghton Mifflin Co. p. 237. ISBN   978-1-56458-032-0.
  5. ↑ Varkey, M. J.; Murty, V. S. N.; Suryanarayana, A. (1996). "Physical oceanography of the Bay of Bengal and Andaman Sea". Oceanography and Marine Biology: An Annual Review. 34: 165.
  6. ↑ Leal, José H. (2020-01-10). "Telltale Shell Parts: The Pallial Sinus". shellmuseum. Retrieved 2024-06-02.
  7. ↑ Secretariat of the Pacific Community (2003). VANUATU COUNTRY REPORT: PROFILES AND RESULTS FROM SURVEY WORK AT PAUNANGISU VILLAGE, MOSO ISLAND, URI AND URIPIV ISLANDS AND THE MASKELYNE ARCHIPELAGO (PDF). Pacific Regional Oceanic and Coastal Fisheries Development Programme. p. 75. ISBN   978-982-00-0265-4.
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