Donax (Donax) pulchella   Hanley  (Clam)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Mollusca
Class: Bivalvia
Order:Veneroida
Family:Donacidae

Description
Size: Length 5.02 – 13.35 mm; height 3.2 – 7.21 mm; width 1.7 – 4.8 mm

Color: Ash white or grayish white, rayed and banded with blackish grey.

Shell elongately oblong, a little compressed in the middle. Anterior margin rounded; ventral margin slightly convex or almost straight; anterior-dorsal margin straight and gradually sloped; posterior-dorsal margin steeply sloped; posterior margin short and convex. Sculpture with very fine or almost obsolete concentric and radial striae, striae more prominent at the posterior end. Internal margin strongly denticulate. Umbos posterior, ligament short, sunken; lunule more on the right valve.
In the left valve the cardinal complex consists of a thin lamellate anterior tooth and slightly thick posterior tooth; anterior lateral absent; posterior lateral distinct and proximal to the cardinal complex. In the right valve the cardinal teeth consist of thick triangular bifid teeth; laterals very prominent; anterior-lateral distal and posterior-lateral proximal to the cardinal complex.
Adductor muscle scars well developed. The anterior adductor muscle scar oblong shaped and posterior adductor muscle scars almost rounded in shape. Sinus equal in both the valves, developed less than half of the length of the shell, sinus rises from the posterior adductor scar and almost in a circular fashion and confluences with pallial line only at the end.


Synonym (s)
Donax pulchella Hanley, 1843
Donax spiculum Reeve, 1855
Donax pulchella Reeve, 1854
Donax (Serrula) pulchella Roemer, 1870
Donax spiculum Roemer, 1870
Donax pulchella Preston, 1915
Donax (Donax) pulchella Subba Rao & Dey, 1986

Common Name (s)
Economic Importance and Threats

Ecology

Biogeography


• Andhra Pradesh INDIA
• Goa INDIA (Record: 1986, 1991)
• Karnataka INDIA
• Kerala INDIA
• Tamil Nadu INDIA
• PAKISTAN
• MYANMAR
• Orissa, Chilika Lake INDIA (Record: 1913)
• Orissa, Puri INDIA (Record: 1991)
• Andhra Pradesh, Machilipatnam INDIA (Record: 1991)
• Andhra Pradesh, Nizampatnam INDIA (Record: 1991)
• Tamil Nadu, Adyar INDIA (Record: 1991)
• Tamil Nadu, Tuticorin INDIA (Record: 1991)
• Pondicherry, Karaikal INDIA (Record: 1991)
• Kerala, Kannur INDIA (Record: 1991)
• Kerala, Kozhikode INDIA (Record: 1991)
• Kerala, Kochi INDIA (Record: 1991)
• Kerala, Vypin Island INDIA (Record: 1991)
• Karnataka, Surathkal INDIA (Record: 1991)
• Karnataka, Mangalore INDIA (Record: 1991)

Literature Source(s)
  • OBIS Indo-Pacific molluscan database: Taxa reported from regions in India (W) Available at - http://clade.ansp.org/obis/search.php/region3140
  • OBIS Indo-Pacific molluscan database Available at - http://clade.ansp.org/obis/find_mollusk.html
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Subba Rao, NV and Dey, A (1986) Contributions to the knowledge of Indian marine molluscs 2. Family Donacidae Records of the Zoological Survey of India. Occasional paper no. 91 ZSI, Calcutta 30 pp Available at - NIO, Goa
  • Rao, NVS; Rao, KVS and Manna, RN (1995) Mollusca Wetland ecosystem series 1: Fauna of Chilka lake ZSI, Calcutta 391-468 Available at - NIO, Goa
  • Rao, NVS; Rao, KVS and Maitra, S (1991) Marine molluscs State fauna series 1: Fauna of Orissa Zoological Survey of India, Calcutta Part 3 1-175 Available at - NIO, Goa

Page last updated on:2009-10-12

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