Figure 5 in Swima (Annelida, Acrocirridae), holopelagic worms from the deep Pacific

Figure 5. Swima fulgida sp. nov. paratype 1 (A–C, F–H) and paratype 2 (D–E), images A, B, D taken from live animals. A, ventral view, whole animal. Dark pigmented foregut and coils of orange midgut are visible through the transparent body wall. B, dorsal view, anterior. C, illustration showing location of features visible in B. Grey arrows indicate left elliptical branchiae scars; black arrow indicates right nuchal organ. The bases of the palps, the medial subulate branchia (sb), nuchal organs, and nephridiopore papillus (np) are visible. D, ventral view, anterior. E, illustration showing location of features visible in C. Developing gonads indicated by arrows; posterior fold of the left nephridia (n), and dorsal blood vessel (bv) visible. F, light micrograph of notochaetae, stitched compilation of four images. G, light micrograph of shaft of chaeta. H, scanning electron micrograph of shaft of chaeta. Scale bars: A = 5 mm, D = 1 mm, F = 0.4 mm, H = 10 Mm.