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Porcupine Bight : c. 700m

Lofoten, Norway

Lofoten, Norway

Lofoten, Norway

Lofoten, Norway

Porcupine Bight : c. 700m

Porcupine Bight : c. 700m

Porcupine Bight : c. 700m

Porcupine Bight : c. 700m

Porcupine Bight : c. 700m

Porcupine Bight : c. 700m
Abra longicallus (Scacchi, 1835)
NMW Image No.

Abra longicallus (Scacchi, 1835)

Tellinoidea : Semelidae
Tebble name: Abra longicallus (Scacchi)
Smith & Heppell name: Abra longicallus (Scacchi, 1834)

To size: To 19mm. Shell Structure: Thin, brittle. Equivalve: Almost equivalve. Equilateral: Inequilateral, beaks to the posterior. Tumidity: Not tumid. Outline: Ovate, posterior dorsal margin almost straight sloping to a narrowly rounded posterior margin, anterior dorsal margin almost straight sloping to a broadly rounded anterior margin.

Sculpture: Concentric lines and faint radial lines. Growth stages clear. Margin: Smooth. Ligament: External small brown, arched band, internal ligament in a small elongated, triangular chondrophore. Hinge: LV one small cardinal and single weak laterals; RV two cardinals and single laterals. Pallial Musculature: Deep pallial sinus, confluent with pallial line for two thirds of its length. Cruciform muscle scars visible in some specimens. Periostracum: Brown. Colour: Creamy white.

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Distribution & Ecology

On the continental margin and upper slope from c.200-1000m. In oceanic muddy sand, low amounts of organic carbon.

Depth Range
Continental Margin Zone (200 - 500m)
Bathyal (500 - 2000m)

Juveniles & Similar Species

Juvenile Description

Key Features & Similar Species

Additional Comments

Tellinoidea : Semelidae


Listed are literature citing Abra longicallus (Scacchi, 1835). Reference containing the species Type Description is highlighted.
Scacchi A 1835. Notizie intorno alle conchiglie ed a’zoofiti fossili che si trouvano nelle vicinanze Gravina in Puglia. Annali Civili del Regno delle Due Sicilie. 6: 75-84.




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Record last modified - 22/03/2016