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TELLINIDAE |
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Click on an image to enlarge
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Semelangulus
tenuiliratus
(G. B. Sowerby II, 1867) Description:
Shape elongate, umbo at posterior third. Antero-dorsal
margin straight, postero-dorsal margin initially straight.
Posteroventral region incipiently drawn out to a spout, margin
straightened. Angulation from umbo to posterior end on both valves;
shell slightly twisted at extreme posterior. Exterior with fine
commarginal ridges, stronger on posterior end. Interior with
muscle scars well defined, pallial line and sinus obscure. Pallial sinus
nearly reaching anterior muscle scar. Hinge with 2 cardinal teeth
in each valve, with a widely spaced lateral each side. Ligament
short, external. Shell
colour uniformly white or pink, or (rarely) rose or white with pink
concentric bands. Size:
Up to 12 mm in length. Distribution:
Central Qld, southwards and around southern Australia, to Streaky
Bay, SA, including Tas. Habitat:
In sand down to 75 m. Most specimens are from beach washup.
Common. Synonymy:
Tellina
semitorta G. B. Sowerby II, 1867 is
a previously recognised synonym. Fig.
1:
Off Sow and Pigs Reef, Port Jackson (Sydney Harbour) (C.028146) Fig.
2:
Coloured specimens. Off Sow and Pigs Reef, Port Jackson (Sydney
Harbour) (C.028146) |
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