Species Account

Scacchia tenera Jeffreys, 1881

Galeommatoidea : Montacutidae

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

To size: To 3 mm. Shell Structure: Thin, fragile. Equivalve: Equivalve. Equilateral: Equilateral. Tumidity: Compressed. Outline: Sub-elliptical, anterior dorsal (lunule) margin distinct, concave; anterior broadly rounded; ventral long, gently curved; posterior dorsal shouldered with a short dorsal angled to a longer posterior dorsal slope; posterior obliquely subtruncate.

Sculpture: Primarily of co-marginal lines and growth stops and with microscopic wavy radial striae. Margin: Inner margin smooth. Ligament: Internal, very small on a shallow resilifer below and behind the beaks. Hinge: RV with a prominent cardinal peg anterior of the resilifer; LV with a similar but weaker single cardinal. Pallial Musculature: Obscure. Periostracum: Obscure. Colour: White.

Distribution & Ecology

A deep water species found at bathyal and abyssal depths.

Depth Range
Bathyal (500 - 2000m)
Abyssal Rise (2000 - 4000m)
Abyssal Plain (4000m +)

Additional Information & Related Species


Listed are literature citing Scacchia tenera Jeffreys, 1881. Reference containing the species Type Description is highlighted.

Jeffreys J.G. 1881. On the Mollusca procured during the ‘Lightning’ and ‘Porcupine’ Expeditions, 1868-70. (Part III). Proceedings of the Zoological Society of London. 1881: 693-724.
Van Aartsen JJ 1996. Galeommatacea and Cyamiacea Part II. La Conchiglia. 281: 27-53, + 61.


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Record last modified: 15/01/2014