Species Account

Cetoconcha bulla (Dall, 1881)

Poromyoidea : Poromyidae

Tebble name: n/a
Smith & Heppell name: n/a

Notes on Nomenclature

Here previously as Cetoconcha nitida (Verrill, 1884).
Not included in CLEMAM – deep-water species.

To size: To 20mm. Shell Structure: Thin. Equivalve: Equivalve. Equilateral: Slightly inequilateral, beaks towards anterior. Tumidity: Rather tumid. Outline: Roundly subovate. Umbo very prominent. Anterior dorsal margin sloping steeply to rounded anterior margin. Posterior dorsal margin longer than anterior sloping less steeply to a broadly rounded posterior margin. Ventral margin evenly curved.

Sculpture: Apparently smooth with co-marginal lines and growth stops but overall with very fine radial rows of minute pustules most visible at the margins, especially the posterior. Margin: Smooth. Ligament: External but set on a short, deeply inset resilifer situated posterior to the beaks. Hinge: Lacking obvious teeth only with a slight extension of the anterior dorsal margin. Periostracum: Thin, straw-coloured. Colour: White.

Distribution & Ecology

In our study area known only from Porcupine Abyssal Plain.

Depth Range
Abyssal Plain (4000m +)

Additional Information & Related Species

Related Species


Listed are literature citing Cetoconcha bulla (Dall, 1881). Reference containing the species Type Description is highlighted.

Dall W H 1881. Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico and in the Caribbean Sea, 1877-79, by the U.S. Coast Survey Steamer “Blake”. XV, Preliminary report on the Mollusca. Bulletin of the Museum of Comparative Zoology, Harvard. 9: 33-144.


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Record last modified: 17/05/2016