Figure 24 from: Cairns S, Lindner A (2011) A Revision of the Stylasteridae (Cnidaria, Hydrozoa, Filifera) from Alaska and Adjacent Waters. ZooKeys 158: 1-88. https://doi.org/10.3897/zookeys.158.1910

Figure 24 - Stylaster alaskanus, A–C, M male paratype of Stylaster cancellatus, USNM 86005 D–E, H, J, L female paratype of Stylaster gemmascens alaskanus, USNM 86006, F–G, I, K holotype (female) of Stylaster cancellatus, USNM 43267: A stereo view of branch tip with male ampullae B–C, J cyclosystems and male ampullae D stereo view of cyclosystem and female ampulla with a distinct efferent pore E cyclosystem and female ampulla F coenosteal texture G stereo view of gastrostyle and ring palisade H a cyclosystem I rudimentary dactylostyle K–L female ampullae M cluster of male ampullae.