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Taxon profile

species

Miomelon alarconi Stuardo & Villas, 1974

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Volutidae - volutes »  genus Miomelon

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Miomelon alarconi

Author: McLean & Andrade

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Description

Shell moderately large, aperture length equal to spire height; shoulder concave, siphonal canal broad, outer lip thin. Sculpture of fine axial ribs and less prominent spiral cords, interspaces broad. Columella with three or four plaits, the anteriormost the strongest. Color light brown under a thin brown pcriostracum; parietal glaze light brown; surface often chalky in specimens that have lost the periostracum.
Dimensions: height 74.9 mm, diameter 32.0 mm; height 89.7 mm, diameter 39.4 mm (holotype).
Radula: base of rachidian elongate, strongly tricuspidate. See also Stuardo and Villarroel (1974, fig. 2).
McLean, J.H. & Andrade, H.V., 1982. Large archibenthal gastropods of central Chile: Collections from an expedition of r/v Anton Bruun and the Chilean shrimp fishery.

Interchangeable taxa

Miomelon alarconi is larger, heavier, and more broadly inflated and has coarser spiral sculpture than M. philippiana.
McLean, J.H. & Andrade, H.V., 1982. Large archibenthal gastropods of central Chile: Collections from an expedition of r/v Anton Bruun and the Chilean shrimp fishery.

Distribution

DISTRIBUTION. Coquimbo (29°58'S), to 37°51'S (Stuardo and Villarroel, 1974), Chile. Depth range: 125-450 m.
McLean, J.H. & Andrade, H.V., 1982. Large archibenthal gastropods of central Chile: Collections from an expedition of r/v Anton Bruun and the Chilean shrimp fishery.
Author: Jan Delsing

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Miomelon alarconi Stuardo & Villas, 1974]
Data retrieved on: 23 November 2013

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