Relevant Synonyms Tellina dubia Deshayes Pseudometis praerupta (Salisbury, 1934) Misidentification -  photo: W. Engl / Coll. D. Çeviker

SHORT DESCRIPTION Shell almost equivalve with lv slightly flatter. Outline subovate - subtruncate. Inequilateral, umbo at the posterior 1/3 of the valve. Anterior margin rounded; posterior margin narrow, subtruncate, flexous. Sculpture of concentric lines and very faint radial striations most visible on rv. Ligament external but obsolete. Hinge with 2 cardinal teeth in each valve, left posterior becoming obsolete. No lateral teeth. Pallial sinus extending to the middle of the shell. color : white rather porcellanous, periostracum straw colored. common size : to 50 mm in length. DISTINGUISHING CHARACTERISTICS Externally resembles Abra from which it differs in having more solid shell, different ornamentation of shell and distinctly different dentation. BIOLOGY / ECOLOGY Infaunal siphonate, unattached animals: the genus comprises surface deposit feeders, burrowing actively into the sediment in muddy and sandy substrata. habitat : muddy sands in shallow water; dredged from 120-180 m muddy substrata.

1st Mediterranean record Southern Turkey, 1999 [1992]. DISTRIBUTION Worldwide: original distribution in the Indo-Pacific including Red Sea; recorded in the Suez Canal (Hoenselaar and Dekker, 1998). Mediterranean: only one record in 1992, off Adana, southern Turkey (Engl and Çeviker, 1999). ESTABLISHMENT SUCCESS Rare; record based on four valves. speculated reasons for success : - MODE OF INTRODUCTION Unknown. IMPORTANCE TO HUMANS None.

KEY REFERENCES Engl W. and Çeviker D., 1999. New migrant species from southeast Turkey Psammotreta praerupta (Salisbury, 1934) and Antigona lamellaris Schumacher, 1817. La Conchiglia, 290: 17-20. Oliver P.G., 1992. Bivalved seashells of the Red Sea. Christa Hemmen, Wiesbaden and National Museum of Wales, Cardiff, 330 p.   FEEDBACK / COMMENTS TO AUTHORS

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