Species Account

Montacuta phascolionis Dautzenberg & Fischer, 1925

Galeommatoidea : Montacutidae

Tebble name: n/a
Smith & Heppell name: Tellimya phascolionis (Dautzenberg & Fischer, 1925)

To size: To 4mm. Shell Structure: Thin but heavily encrusted. Equivalve: Equivalve. Equilateral: Equilateral. Tumidity: Compressed. Outline: Oblong, dorsal margins almost equally sloping to rounded lateral margins; ventral margin straight or slightly concave.

Sculpture: Of co-marginal lines, growth stops and radial linear inclusions within the shell. Margin: Inner margin smooth. Ligament: Internal set on a shallow resilifer beneath and behind the beaks. Hinge: Both valves with a small anterior tooth. Pallial Musculature: Muscle scars obscure, pallial line entire. Colour: Shell white but usually encrusted with a rust coloured deposit.

Distribution & Ecology

A commensal species living inside the shells of Apporhais and Turritella occupied by the sipunculan Phascolion strombi. Sublittoral and shallow shelf. A southern species ranging into the Western Approaches and Celtic Sea.

Depth Range
Continental Shelf (to 200m)

Additional Information & Related Species


Listed are literature citing Montacuta phascolionis Dautzenberg & Fischer, 1925. Reference containing the species Type Description is highlighted.

Dautzenberg P & Fischer H 1925. Les mollusques marins du Finistère et en particulier de la région de Roscoff. Travaux de la Station Biologique de Roscoff. 3: 1-180.
Gibbs P E 1978. Menestho diaphana (Gastropoda) and Montacuta phascolionis (Lamellibranchia) in association with the sipunculan Phascolion strombi in British waters. Journal of the Marine Biological Association of the United Kingdom. 58 (3): 683-685.


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Record last modified: 15/01/2014