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species

Eulimella boydae Aartsen, Gittenberger & Goud, 2000

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Allogastropoda »  family Pyramidellidae »  genus Eulimella

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Eulimella boydae

Author: Aartsen, van, Gittenberger & Goud

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Description

Shell white and shiny, elongated conical, somewhat cyrtoconoid in older specimens, without a spiral microsculpture. Embryonic whorls helicoid, mea¬suring about 250 pm in diameter and somewhat inclined towards the mouth of the shell. Teleoconch with eight to nine, relatively low whorls; the initial ones flat and the younger ones slightly convex. Suture clearly marked and rather horizontal. Growth-lines orthocline to somewhat opisthocline; without additional sculpture. Outer lip evenly curved; with several list-like teeth inside, two of which clearly above the middle of the lip. There is a clear fold on the columella, but neither an umbilicus nor a prominent columellar tooth are present.
Dimensions: H. 2.8-3.1 mm, W. 0.7-0.8 mm; holotype 3.1 x 0.8 mm.
Aartsen, J.J. , Gittenberger, E. & Goud, J., 2000. Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 2)

Interchangeable taxa

Eulimella boydae spec. nov. is very similar to E. endolamellata Schander, 1994. However, in E. boydae the embryonic whorls pass into the first teleoconch whorls much more gradually (compare figs 10 and 9) and the initial teleoconch whorls are flat, not pagoda-like as in E. endolamellata. The shells are more slender in E. boydae spec, nov.; at a length of 3.0 mm the width is 0.8 mm, whereas the corresponding width in E. endolamellata is 1.0 mm.
Depth range.— 74-80 m.
Aartsen, J.J. , Gittenberger, E. & Goud, J., 2000. Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 2)
Author: Jan Delsing

Similar species

Syrnola endolamellata (Schander, 1994)

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Eulimella boydae Aartsen, Gittenberger & Goud, 1998]
Data retrieved on: 23 November 2013

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