Species Account

Kurtiella tumidula (Jeffreys, 1866)

Galeommatoidea : Montacutidae

Tebble name: n/a
Smith & Heppell name: Mysella tumidula (Jeffreys, 1866)

To size: To 3mm. Shell Structure: Thin, fragile. Equivalve: Equivalve. Equilateral: Inequilateral, beaks in the posterior 1/4. Outline: Subovate greatly expanded anteriorly; anterior dorsal margin long rather straight, horizontal, anterior broadly rounded; posterior dorsal short rather straight sloping steeply to narrowly rounded posterior.

Sculpture: Of fine co-marginal lines. Margin: Inner margin smooth. Ligament: Internal in a wide pit beneath the beaks and inserted deep inside the umbos. Hinge: Of two diverging lateral teeth in each valve, those in the RV clearly separated from shell margin, narrow, elongate, those in LV as extensions of shell margin. Angle of divergence in RV ca. 110°, in LV 130°. Pallial Musculature: Pallial line entire. Periostracum: Yellowish. Colour: Dirty white. Additional Characters: Prodissoconch 360 µm, P1 smooth, P2 with faint co-marginal growth lines.

Distribution & Ecology

No commensal association has been confirmed. Found at the shelf edge and upper slope from 200-800m. Along the entire western seaboard

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

Additional Information & Related Species


Listed are literature citing Kurtiella tumidula (Jeffreys, 1866). Reference containing the species Type Description is highlighted.

Gofas, S. & Salas, C. 2008. A review of European ‘Mysella’ species (Bivalvia: Montacutidae), with description of Kurtiella new genus. Journal of Molluscan Studies. 74: 119-135.
Jeffreys J G 1866. Descriptions of a new species of Montacuta. Annals and magazine of natural History. 3 (18): 396-397.
Kallonas M, Zenetos A & Gofas S 1999. Notes on the Ecology and Distribution of Microbivalvia in Greek Waters. La Conchiglia. 291: 11-20.
Van Aartsen JJ 1996. Galeommatacea and Cyamiacea Part II. La Conchiglia. 281: 27-53, + 61.


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Record last modified: 14/01/2014