Differences in Inklings, Octolings, and Neukadians

Inklings and Octolings share many common characteristics, with great consistency between members of the same group. Neukadians, despite inheriting from them, have reoccurring independent traits.

Rarely, a Neukadian may be impossible to differentiate from an Inkling or Octoling.
Of course, this does not invalidate who and what they are.

InklingOctolingNeukadian
BodyBody typeMasc or fem, sometimes alteredMasc or fem, often altered
Skin toneAny color
InkAny colorAny color, usually desaturated or translucent
FingersFlatPointyEither
Fingertip colorAny color or none
HairHair styleStraight hairWavy hairAny
ExtremitiesAny color, usually desaturatedAny color
Hair undersideWhiteSimilar to ink, rarely white
BioluminescenceOn tentacle ends, spotsOn tentacle ends, ringsNone, sometimes any shape or full bioluminescence
Suction cupsOn the insideOn the outsideNone
HeadPupilsBlack, sometimes any dark color, any shape
IrisesAny colorAny color, usually desaturated and bioluminescent
ScleraeWhite, sometimes any colorAny color
Mask bridgeYesNoEither
Mask lashesNone, rarely anyAny
EarsPointyRound, left ear dentedAny
FangsTwo sides-above, one center-belowOne left-above, one right-belowAny
EyebrowsUsually triangularUsually curvyAny