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File:Gastropod shell measuring.png

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Description
English: Schematic representation/drawing of the apical, apertural and basal view of the shell (probably Trochulus sp.) shows of the 14 measurements. Dotted lines represent orientation axes.
  • N complete whorls
  • P partail whorls
  • NTW computed as the number of complete whorls plus the partial whorl (in degrees; divided by 360)
  • APX the width of the apex
  • SP1 the width of the first whorl
  • SP2 the width of the second whorl
  • SP3 the width of the third whorl
  • DWL the diameter of the spire without the last whorl
  • HSP the height of the spire
  • HFW the height of the first whorl
  • DPR the diameter of the peristome
  • HPR the height of the peristome
  • DSP the diameter of the spire
  • AES the shape, measured as the angle formed by the apex and the most external sutures
  • DOM the diameter of the umbilicus
  • WWO the width of the shell without the opening
Date
Source Dépraz A., Hausser J, & Pfenninger M. (21 July) 2009. A species delimitation approach in the Trochulus sericeus/hispidus complex reveals two cryptic species within a sharp contact zone. BMC Evolutionary Biology 2009, 9:171. doi:10.1186/1471-2148-9-171 Figure 4. Cropped and modified from PDF file imported in 1200 px × 849 px. Modified by User:Snek01.
Author Aline Dépraz, Jacques Hausser & Markus Pfenninger. Image modified by User:Snek01.
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21 July 2009

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current20:57, 3 September 2009Thumbnail for version as of 20:57, 3 September 2009300 × 746 (57 KB)Snek01{{Information |Description={{en|Schematic representation/drawing of the apical, apertural and basal view of the shell (probably ''Trochulus'' sp.) shows of the 14 measurements. Dotted lines represent orientation axes.}} |Source=Dépraz A., Hausser J, & Pf
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