Figure 1 from: Cairns SD, Taylor ML (2019) An illustrated key to the species of the genus Narella (Cnidaria, Octocorallia, Primnoidae). ZooKeys 822: 1-15. https://doi.org/10.3897/zookeys.822.29922

Figure 1 A, B lateral view of a polyp showing dorsolateral ridge for entire height of basal scale (AN.parva from Versluys (1906)BN.bayeri) C basal scale of N.hawaiinensis showing dorsolateral ridge only on lower half of scale D whorl of polyps of N.pauciflora showing multiple dorsolateral ridges on the basal scales E basal scale of N.vulgaris showing the lack of a dorsolateral ridge, and a lobate distal edge F polyp whorl of N.bellissima showing the three pairs of body wall scales G polyp of N.laxa having four pairs of body wall scales H polyp whorl of N.hypsocalyx showing highly modified basal scales forming a cross section view of a cylindrical worm tube I polyp whorl of N.vulgaris showing highly modified basal scales forming a lateral view of a cylindrical worm tube J unbranched colony of N.versluysiK, L branching from a basal bolus of N.hypsocalyxM sparse, dichotomous branching of N.macrocalyxN equal, dichotomous branching of N.vulgarisO lyrate branching of N.bellissimaP massive basal scales of N.clavata.