Figure 30 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 30 - Crypthelia trophostega, A–B, F, H–J female colony, USNM 1122887 C–E, G, K–L holotype (male), USNM 42876: A–B cyclosystem and lid, covered with numerous nematopores C under side of cyclosystem lid showing numerous male efferent pores D–E coenosteal texture F slender pseudosepta bearing nematopores G three nematopores H stereo view of longitudinal section of cyclosystem showing multiple female efferent pores under lid I enlargement of efferent pores of figure H J fractured female lid K stereo view of fractured cyclosystem showing multiple male efferent pores (enlarged in fig. C) L stereo view of cyclosystem missing its lid revealing several male ampullae.