Abra profundorum (E A Smith, 1885)
Tellinoidea : Semelidae
To size: To 19mm. Shell Structure: Thin, fragile. Equivalve: Subequivalve, posterior flexed slightly to the right. Equilateral: Inequilateral, beaks slightly behind the midline. Outline: Subovate, posteriorly subacute; posterior dorsal margin almost straight sloping quite steeply to subacute posterior; ventral margin a broad curve; anterior broadly rounded; posterior dorsal short slightly concave.
Sculpture: Almost smooth with co-marginal fine lines. Margin: Inner margin smooth. Ligament: External small brown, arched band, internal ligament in a narrow triangular chondrophore. Hinge: LV with one small cardinal and single weak laterals; RV with two cardinals and single laterals. Pallial Musculature: Pallial sinus deep extending beyond midline, confluent for most of its length. Periostracum: Thin pale brown. Colour: Shell white.
Distribution & Ecology
Abyssal Rise (2000 - 4000m)
Abyssal Plain (4000m +)
Additional Information & Related Species
Tellinoidea : Semelidae
Listed are literature citing Abra profundorum (E A Smith, 1885). Reference containing the species Type Description is highlighted.
Allen J A & Sanders H L 1966. Adaptations to abyssal life as shown by the bivalve Abra profundorum (Smith). Deep Sea Research and Oceanographic Abstracts. 13: 1175-1178.
Olabarria C. 2005. Patterns of bathymetric zonation of bivalves in the Porcupine Sea Bight and adjacent abyssal plain, NE Atlantic. Deep-Sea Research I. 52: 15-31.
Smith E A 1885. Report on the Lamellibranchiata collected by HMS Challenger during the years 1873-1876. Reports of the scientific results of the voyage of HMS “Challenger”, Zoology. 13 (35): 1-341, 25pls.
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