Fig. 10

Scanning electron micrographs showing trunk morphology and cuticular details in Echinoderes riceae n. sp. a Detail of mouth cone, asterisk marks middorsal position. b Detail introvert, sectors 4–5. c Introvert, neck and segments 1–8, dorsal view. d Detail of neck and trunk segments 1–4, ventral view. e. Detail of trunk segments 5–8, lateral view. f Detail of protonephridial opening on segment 9, lateral view. g. Female detail of trunk segments 9–11, dorsal view. h. Male detail of trunk segments 8–11, laterodorsal view. i. Male detail of penile spines on segment 11, lateral view. I introvert, lat lateral accessory tubule, ldt laterodorsal tubule, ls leaf-like scalid, ltas lateral terminal accessory spine, lts lateral terminal spine, lvs lateroventral spine, mc mouth cone, md middorsal spine, mvp midventral placid, po protonephridial opening, oos outer oral style, p1-3 penile spines, psp primary spinoscalid, sps spinoscalid, spf secondary pectinate fringe, te tergal extension, tr trichoscalid, vlt ventrolateral tubule. White circles indicate glandular cell outlets type 1 (dotted line) and sensory spots (solid line). Digits after abbreviations refer to segment number or introvert ring number. Lambda symbols (Λ) mark attachment points of scalids