Pharella javanica
(Lamarck,
1818) (Clam)
Organism information awaits expert curation
Image copyrights: Guido T. Poppe & Philippe Poppe
Organism information awaits expert curation
| Taxonomy | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | [unassigned] Euheterodonta |
| Family: | Pharidae |
Image copyrights: Guido T. Poppe & Philippe Poppe
Description
Size: Maximum shell length 8 cm, commonly to 6 cm.
Colour: Outside of shell off-white under the brownish, often darker in the middle, periostracum. Interior pale cream to bluish white.
Shell moderately thin and elongated, about 4 times longer than high. Anterior and posterior margins rounded. Ventral margin roughly parallel to dorsal margin, straightish, often faintly depressed in the middle. Umbones low, situated slightly behind the anterior 1/3 of shell length. Outer surface of valves with irregular concentric growth lines. Cardinal teeth blade-like and fragile, 2 in left valve and 3 in right valve. Internal surface smooth, without a narrow, diagonal radial rib under the umbones. Adductor scars subequal, elongate-ovate in shape, extending along the internal anterodorsal and posterodorsal margins. Pallial sinus very shallow, reduced to a slightly oblique line under the hind part of posterior adductor scar.
Size: Maximum shell length 8 cm, commonly to 6 cm.
Colour: Outside of shell off-white under the brownish, often darker in the middle, periostracum. Interior pale cream to bluish white.
Shell moderately thin and elongated, about 4 times longer than high. Anterior and posterior margins rounded. Ventral margin roughly parallel to dorsal margin, straightish, often faintly depressed in the middle. Umbones low, situated slightly behind the anterior 1/3 of shell length. Outer surface of valves with irregular concentric growth lines. Cardinal teeth blade-like and fragile, 2 in left valve and 3 in right valve. Internal surface smooth, without a narrow, diagonal radial rib under the umbones. Adductor scars subequal, elongate-ovate in shape, extending along the internal anterodorsal and posterodorsal margins. Pallial sinus very shallow, reduced to a slightly oblique line under the hind part of posterior adductor scar.
Synonym (s)
• Solen javanicus Lamarck, 1818
• Cultellus javanicus Sowerby, 1874
• Pharella javanica Subba Rao, 1977
• Solen javanicus Lamarck, 1818
• Cultellus javanicus Sowerby, 1874
• Pharella javanica Subba Rao, 1977
Common Name (s)
• Javanese Razor Clam (English)
• Javanese Razor Clam (English)
Economic Importance and Threats
Importance: Commercial
(The shell is used for shellcraft.)
Importance: Commercial
(The shell is used for shellcraft.)
Ecology
Habitat: Demersal,Estuarine,Sandy,Muddy
Habitat: Demersal,Estuarine,Sandy,Muddy
Biogeography
• INDIA
• Orissa, Talseri INDIA (Record: 05/11/1983)
• West Bengal, Port Canning INDIA
• West Bengal, Digha INDIA
• INDIA
• Orissa, Talseri INDIA (Record: 05/11/1983)
• West Bengal, Port Canning INDIA
• West Bengal, Digha INDIA
Literature Source(s)
- Sealifebase Available at - http://www.sealifebase.org/
- Poutiers, JM (1998) Bivalves FAO species identification guide for fishery purposes. The living marine resources of the western central Pacific. Volume 1: Seaweeds, corals, bivalves and gastropods FAO, Rome 1 686 pp Available at - http://www.fao.org/docrep/009/w7191e/w7191e00.htm
- Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
- Bourquin, A Man and mollusc / mollusk Available at - http://www.manandmollusc.net/
- 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:2010-06-07
