Fig. 4From: New size data on the enigmatic Spirula spirula (Decabrachia, suborder Spirulina), on a global geographic scaleDiameter and whorl height in S. spirula from the Atlantic, Indian and Pacific Oceans. a Box plots showing geographic occurrences and diameter variations at distinct localities. b Box plots showing geographic occurrences and whorl height variation at distinct localities. Quartile method (rounded) in box plots Back to article page