Species Account

Halonympha inflata (Jeffreys, 1882)

Verticordioidea : Cuspidariidae

Tebble name: n/a
Smith & Heppell name: Cuspidaria inflata (Jeffreys, 1876)

Notes on Nomenclature

Described as Cuspidaria in CLEMAM and Rhinoclama in WoRMS.
Jeffreys description of
inflata is of a Halonympha - ‘curved laminar process or ridge, which apparently supports the adductor muscle on that side’. He describes the clavicular flange or buttress that is diagnostic of this genus.

To size: To 16mm. Shell Structure: Robust. Equivalve: Equivalve. Equilateral: Slightly inequilateral, beaks behind midline. Tumidity: Moderately inflated. Outline: Body of shell deep, as high as long; anterior sloping steeply, gently curved; ventral curved. Rostrum short, length not equalling that of body, broadly triangular, dorsal slope straight, ventral margin only slightly concave, sulcus shallow.

Sculpture: Of closely and evenly spaced fine concentric ridges. Margin: Inner margin smooth. Ligament: Internal on a narrow projecting chondrophore. Hinge: A single anterior, small cardinal peg in the RV; both valves with a single, elongate, clavicular flange supporting the posterior adductor. Colour: Dirty white.

Distribution & Ecology

Known only from the original Porcupine material collected in the Biscay Basin and off Portugal at over 1000m.

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

Additional Information & Related Species


Listed are literature citing Halonympha inflata (Jeffreys, 1882). Reference containing the species Type Description is highlighted.

Jeffreys J.G. 1882. On the Mollusca procured during the ‘Lightning’ and ‘Porcupine’ Expeditions, 1868-70. (Part IV). Proceedings of the Zoological Society of London. 1881: 921-952.
Poutiers J.M. & Bernard F.R. 1995. Carnivorous bivalve molluscs (Anomalodesmata) from the tropical western Pacific OCean, with a proposed classification and a catalogue of Recent species Resultat des Campagnes MUSORSTOM, vol 14. Memoires Museum national Histoire naturelle, 167. 107-187.


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Record last modified: 22/03/2016