MarBEF Data System



ERMS taxon details

Checked: verified by a taxonomic editorAlvania adiaphoros Bouchet & Warén, 1993

141152  (urn:lsid:marinespecies.org:taxname:141152)

accepted
Species
marine
Bouchet P. & Warén A. (1993). Revision of the Northeast Atlantic bathyal and abyssal Mesogastropoda. Bollettino Malacologico supplemento 3: 579-840
page(s): 652, 666 [details]   
Checked: verified by a taxonomic editorNote off Azores (39º26'N, 31º22'W, 650-914 m)  
From editor or global species database
Checked: verified by a taxonomic editorType locality off Azores (39º26'N, 31º22'W, 650-914 m) [details]
Checked: verified by a taxonomic editorDistribution Azores, in 360-914 m; Great Meteor, Hyères...  
Checked: verified by a taxonomic editorDistribution Azores, in 360-914 m; Great Meteor, Hyères and Atlantis seamounts, very common in 280-480 m. Irving seamount, rare in 460-790 m. [details]
Gofas, S. (2004). Alvania adiaphoros Bouchet & Warén, 1993. In: MolluscaBase (2017). Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2017). European Register of Marine Species at http://marbef.org/data/aphia.php?p=taxdetails&id=141152 on 2017-12-18

Date
action
by
2004-12-21 15:54:05Z
created

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original description Bouchet P. & Warén A. (1993). Revision of the Northeast Atlantic bathyal and abyssal Mesogastropoda. Bollettino Malacologico supplemento 3: 579-840
page(s): 652, 666 [details]   

basis of record Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Patrimoines Naturels. 50: 180-213. (look up in RoR[details]   

additional source Gofas S. (2007). Rissoidae (Mollusca: Gastropoda) from northeast Atlantic seamounts. Journal of Natural History 41(13–16): 779–885 [details]   
 
 Present  Inaccurate  Introduced: alien 
 

From editor or global species database
Checked: verified by a taxonomic editorBiology Type of larval development: direct (non planktotrophic) denoted by paucispiral protoconch. [details]

Checked: verified by a taxonomic editorDiagnosis Shell 1.8-2.1 mm high, with protoconch of 1.75 whorl and teleoconch of 2.75 to 3.25 whorls. Protoconch covered by minute granules arranged in broad spiral bands, hardly appreciable under the optical microscope, teleoconch with a sculpture of elevated, widely separated axial ribs, minute spiral threads and of distinct spiral cords restricted to the abapical area. A diagnostic feature is the distinct spiral cord overhanging adapically the suture, continued on the body whorl. Outer lip thickened externally at a distance of the edge by a broad rim, then thinning out to a cutting edge; smooth inside. Shell entirely white, translucent.
Specimens from the Azores have a quite faint axial sculpture but another shell from the type locality illustrated by Bouchet and Warén (1993: fig. 1487) resembles the dominant morphology found on Atlantis seamount.
Alvania adiaphoros somewhat resembles the mainland species A. electa (Monterosato, 1874) in general shape and in having a strong suprasutural cord separated from the suture by a channelled interspace. It differs in lacking distinct spirals in the adapical part of the whorls, in a lesser extension of the ribs towards the abapical part, and in being less umbilicate. The protoconch is also different, the granules tending to form definite spiral threads in A. electa[details]

Checked: verified by a taxonomic editorDistribution Azores, in 360-914 m; Great Meteor, Hyères and Atlantis seamounts, very common in 280-480 m. Irving seamount, rare in 460-790 m. [details]

Checked: verified by a taxonomic editorType locality off Azores (39º26'N, 31º22'W, 650-914 m) [details]
 

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