Table 2 in Skolomystax, a new genus for the Australian species formerly included in Centroptilum Eaton (Ephemeroptera: Baetidae)

Table 2. Morphological character matrix comparing the species of Skolomystax.
Species/S.S.S.S.S.S.S.S.S.S.S.CharacterelongatusbrevispascheihawkingileichhardtigippslandicadyarrbichionotostasmaniensisvulgarisgoorudensisSpines on outerF Tib 3–175–82100000000margins of Tibiae & tarsiF Tars 0–81–2000000000M Tib 3–174–63000000000M Tars 0–52–4200000000H Tib 4–204–810–2700000000H Tars 0–60–20–200000000Dark brownNoYesNoNoNoNoNoNoNoNoNomarkings on head,mandibles andlabrumSternite spines onIII–IXV–IX conicalII–IXIV–IXV–IXVI–IXVI–IXIV–IXIV–IXIV–IXIV–IXsegmentslong and alternating short spines contiguousspines contiguousIII–IX long and alternating short spines, contiguousconical spines contiguouslong and contiguouslong and contiguousVII–IX long and contiguous, rare short spineslong and contiguouslong, contiguousV–IX long, contiguouslong and alternating short spines contiguousTergite spinesLong andAll longLong andLong,Long, widelyLong, widelyLong andLong,Long, widelyLong,Long, widelyalternatingwidely spacedalternatingwidelyspacedspacedcontiguouswidelyseparatedwidelyseparatedshortshortspacedseparatedseparatedBody withNoNoNoYesYesNoNoNoNoNoNonumerous smallspotsLabrum notchDeep,Deep,ShallowDeep,Deep, notchDeep,Deep,Deep,Deep,Deep,Deep,marginsrectangularrectangular,square,rectangularroundedrectangularrectangularrectangularrectangularrectangularrectangularAngle 100°Angle 105°Angle 132°Angle 96°Angle 107°Angle 91°Angle 117°Angle 95°Angle 106°Angle 103°Angle 93°Left Mandible3–434–511–4244–53–62–51–3teeth on innermargin of outerincisorsLeft MandibleBroad, rugoseBroad, smoothBroad, rugoseRugose2–4, rugose2–3, smoothBroadBroad,Broad, rugoseBroad,Broad, rugoseinner margin ofslightlyslightlyrugoseinner incisorsrugoserugoseRight Mandible00000–100000–23–5teeth on innermargin of innerincisors