Fig. 3From: Comparative morphology and evolution of the cnidosac in Cladobranchia (Gastropoda: Heterobranchia: Nudibranchia)Variation in cnidosac musculature: a) longitudinal section showing absence of cnidosac musculature in Bulbaeolidia alba; b) longitudinal section showing a single muscle layer in Microchlamylla gracilis; c) longitudinal section showing multi-layered musculature in Flabellinia affinis; and d) longitudinal section showing the cnidosac in Embletonia gracilis. Abbreviations: cs, cnidosac; cp, cnidophage; k, kleptocnides; m, musculature. Scale bars = 50 μmBack to article page