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FIG. 54 in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 54. — Hesione splendida Savigny in Lamarck, 1818, non-type specimen, UF 46: A, anterior region, dorsal view; B, prostomium, dorsal view (arrows point to antennae); C, chaetiger 2, right parapodium, anterior view, an oocyte released (inset: acicular lobe); D, chaetiger 6, right parapodium, anterior view, oocytes inside parapodial coelom (inset: acicular lobe); E, neurochaetal blades, left one from chaetiger 2, others from chaetiger 6 (insets: close-up of tips); F, posterior region, dorsal view. Scale bars: A, 2 mm; B, 0.3 mm; C, 0.4 mm; D, 0.7 mm; E, 60 µm; F, 0.5 mm.

FIG. 53 in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 53. — Hesione splendida Savigny in Lamarck, 1818, syntypes of H. ehlersi Gravier,1900, MNHN-IA-TYPE0287: A, largest syntype, anterior region, dorsal view; B, same, anterior end, dorsal view; C, second largest syntype, anterior region, dorsal view; D, same, anterior end, dorsal view; E, largest syntype, chaetiger 9, left parapodium, anterior view (inset: acicular lobe); F, same, chaetiger 10, left parapodium, anterior view (inset: acicular lobe, folded); G, same, neurochaetae (insets: blade tips). Scale bars: A, 1 mm; B, D, E, 0.5 mm; C, 1.4 mm; F, 0.3 mm; G, 0.2 mm.

FIG. 52 in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 52. — Hesione splendida Savigny in Lamarck, 1818, lectotype, MNHN-IA-TYPE-140: A, dorsal view, note the longitudinal eccentric dissection; B, anterior region, dorsal view; C, chaetiger 8, right parapodium, anterior view (insets: close-ups of acicular lobe and tips of blades); D, posterior region, oblique dorsal view. Scale bars: A, 2.3 mm; B, 1.7 mm; C, 0.2 mm; D, 1 mm.

FIG. 48 in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 48. — Hesione sicula delle Chiaje, 1830, reinst., neotype, ZMB 7529: A, anterior region, dorsal view; B, prostomium and everted pharynx, dorsal view (arrow points to right lateral antenna); C, chaetiger 9, left parapodium, anterior view (inset: acicular lobe); D, same, lower half of neurochaetal bundle (insets: blades); E, posterior region, dorsal view. Scale bars: A, E, 1.8 mm; B, 0.9 mm; C, 0.5 mm; D, 80 µm.

FIG. 46 in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 46. — Hesione praetexta Ehlers, 1887: A, parapodium from a middle-body segment; B, same, tip of neurochaetal tip (modif. after Ehlers, 1887, scale bars missing in original).

FIG. 51 in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 51. — Hesione sicula delle Chiaje, 1830, reinst., non-type specimens, MNHN IA-PNT-106 (formerly jar de Saint-Joseph 20): A, complete, oblique dorsal view; B, anterior region, pharynx exposed, dorsal view; C, prostomium and base of pharynx, dorsal view (arrows point to left lateral antennae, asterisk indicates dorsal papilla); D, another specimen, prostomium and base of pharynx, dorsal view (asterisk indicates dorsal papilla); E, another specimen, posterior region, dorsal view. Scale bars: A, 4 mm; B, 2.4 mm; C, 0.5 mm; D, 0.4 mm; E, 1.8 mm.

FIG. 41 in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 41. — Hesione picta Müller, 1858, non-type specimen, ECOSUR OH 468: A, anterior region, dorsal view; B, posterior region, dorsal view; C, head, close-up, dorsal view; D, pygidium, close-up, dorsal view; E, anterior region, ventral view; F, chaetiger 8, left parapodium, anterior view (insets upper and lower neurochaetal blades). Scale bars: A, 1.5 mm; B, 2 mm; C, D, 0.6 mm; E, 1.1 mm; F, 0.7 mm.

FIG. 55. — Hesione uchidai n in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 55. — Hesione uchidai n. sp., holotype, UF 4384: A, alive, dorsal view; B, anterior body half, dorsal view, pharynx exposed; C, prostomium and basal pharynx ring, prostomium slightly oblique, bent dorsally (arrows point to antennae, asterisk indicates dorsal papilla); D, chaetiger 7, left parapodium, anterior view (inset: acicular lobe); E, same, neurochaetae (insets: blades); F, chaetiger 12, left parapodium, anterior view; G, same, neurochaetae (insets: blades). Scale bars: A, 2.2 mm, B, 2 mm; C, D, 0.3 mm; E, 150 µm; F, 0.5 mm; G, 230 µm.

FIG. 38. — Hesione paulayi n in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 38. — Hesione paulayi n. sp., anterior region of three different specimens, arranged in a progressive reduction of the discontinuous band in chaetiger 3: A, paratype, Papua New Guinea, UF 5845; B, non-type specimen, Society Islands, Moorea, UF 887; C, non-type specimen, Eastern Australia, AMNH 31859. Scale bars: A, 1.1 mm; B, 0.8 mm; C, 1.2 mm.

FIG. 30 in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 30. — Hesione pacifica McIntosh, 1885, holotype, BMNH 85.12.1.136: A, anterior region, dorsal view; B, prostomium, dorsal view (arrows point to antennae); C, chaetiger 15, right parapodium, anterior view (inset: neurochaetal remains); D, posterior region, dorsal view; E, same, close-up of pygidium. Scale bars: A, 1 mm; B, 0.2 mm; C, E, 0.3 mm; D, 0.9 mm.

FIG. 20. — Hesione helenensis n in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 20. — Hesione helenensis n. sp., holotype, USNM 33148: A, anterior region, dorsal view, pharynx partially exposed; B, prostomium, dorsal view (arrow points to left antenna); C, chaetiger 9, left parapodium, anterior view (insets: acicular lobe and bases of cirrostyles); D, same, neurochaetae (insets: blades); E, posterior region, dorsal view. Scale bars: A, 1.7 mm; B, 0.2 mm; C, 0.5 mm; D, 160 µm; E, 1.8 mm.

FIG. 1 in Revision of Hesione Savigny in Lamarck, 1818 (Annelida, Errantia, Hesionidae)

FIG. 1. — Range variation of neurochaetal blades length: width ratios in three chaetigers (3, 7, 9), observed in two different Hesione Savigny in Lamarck, 1818 species: A, H. picta Müller, 1858 from Florida (18 mm: UF 825, 26 mm: UF 826, 32 mm: UF 1593); B, H. praetexta Ehlers, 1887 from Florida (22 mm: UF 1060, 32 mm: UF 1064, 54 mm: UF 2574).

Fig. 8 in Two New Species of Composetia (Annelida: Nereididae) from Small Estuaries in the Ryukyu Islands, Southern Japan, with a List of All Species Currently Belonging to Composetia

Fig. 8. Chaetae of Composetia tokashikiensis sp. nov. A–C, chaetae in parapodium 5 of the holotype (NSMT-Pol H-774): A, homogomph spiniger of notochaetae; B, heterogomph spiniger with short blade from upper neurochaetal bundle; C, heterogomph spiniger with long blade from lower neurochaetal bundle (upper position). D, E, chaetae in parapodium 43 of paratype (NSMT-Pol P-775): D, heterogomph spiniger with short blade from lower neurochaetal bundle (lower position); E, heterogomph falciger from lower neurochaetal bundle. Scale bar: 0.05 mm.

Fig. 5 in Two New Species of Composetia (Annelida: Nereididae) from Small Estuaries in the Ryukyu Islands, Southern Japan, with a List of All Species Currently Belonging to Composetia

Fig. 5. Landscape of the type locality of Composetia kumensis sp. nov. at the uplifted coral reef at Gushicha Gusuku on Kume-jima island (photographed on 22 November 2013). A, overview of the uplifted coral reef around the sampling site; B, the sampling site in a small creek originating from a freshwater spring (arrow) in the upper intertidal zone of the uplifted coral reef, surrounded by saltmarsh vegetation. Scale bar in B: 1 m.

Fig. 3 in Two New Species of Composetia (Annelida: Nereididae) from Small Estuaries in the Ryukyu Islands, Southern Japan, with a List of All Species Currently Belonging to Composetia

Fig. 3. Chaetae in chaetiger 20 of paratype (NSMT-Pol P-771) of Composetia kumensis sp. nov. A, homogomph spiniger from notochaetae; B, heterogomph spiniger from lower neurochaetae; C, heterogomph falciger from upper neurochaetae. Scale bar: 0.05 mm.

Fig. 7 in Two New Species of Composetia (Annelida: Nereididae) from Small Estuaries in the Ryukyu Islands, Southern Japan, with a List of All Species Currently Belonging to Composetia

Fig. 7. Composetia tokashikiensis sp. nov. A–C, paratype (NSMT-Pol P-775): A, dorsal views of prostomium and peristomium; B, dorsal view of the everted proboscis; C, ventral view of the everted proboscis. D–G, holotype (NSMT-Pol H-774): D, posterior view of right parapodium 1; E, posterior view of right parapodium 5; F, anterior view of right parapodium 5; G, posterior view of right parapodium 32. H, posterior view of right parapodium 51 of the paratype (NSMT-Pol P-775). Arrow indicates a notoacicular process. Abbreviations: g, glandular patch; i, neuropodial inferior lobe; ne, neuroacicula; no, notoacicula; p, neuropodial postchaetal lobe. Scale bars: 1 mm (A–C); 0.1 mm (D–H).

Fig. 4 in Two New Species of Composetia (Annelida: Nereididae) from Small Estuaries in the Ryukyu Islands, Southern Japan, with a List of All Species Currently Belonging to Composetia

Fig. 4. Schematic diagrams of chaetal arrangement in distal view of right parapodium around chaetiger 5. A, Composetia kumensis sp. nov. B, C. tokashikiensis sp. nov. Closed circles: homogomph spinigers. Closed squares: heterogomph spinigers. Closed stars: heterogomph falcigers. Asterisks indicate that few heterogomph falcigers are sometimes present. Abbreviations: dc, dorsal cirrus; i, neuropodial inferior lobe; ne, neuroacicula; nea, neuropodial acicular ligule; nev, neuropodial ventral ligule; no, notoacicula; nod, notopodial dorsal ligule; np, notoacicular process; nov, notopodial ventral ligule; po, neuropodial postchaetal lobe; vc, ventral cirrus.

Fig. 6 in Two New Species of Composetia (Annelida: Nereididae) from Small Estuaries in the Ryukyu Islands, Southern Japan, with a List of All Species Currently Belonging to Composetia

Fig. 6. Composetia tokashikiensis sp. nov. A, dorsal view of the whole body of the preserved specimen of holotype (NSMT-Pol H-774). Arrow indicates the enlarged oral ring of the everted proboscis. B–D, anterior end of a paratype (NSMT-Pol P-783): B, dorsal view of prostomium, peristomium, and anterior chaetigers; C, dorsal view of the everted proboscis; D, ventral view of the everted proboscis. E, landscape of the type locality at the upper reaches of a small estuary in the Tokashiki-gawa river in Tokashiki-jima island (photographed on 27 May 2012). Scale bars: 1 mm (A); 0.5 mm (B–D).

Fig. 1 in Two New Species of Composetia (Annelida: Nereididae) from Small Estuaries in the Ryukyu Islands, Southern Japan, with a List of All Species Currently Belonging to Composetia

Fig. 1. Composetia kumensis sp. nov. A, dorsal view of the whole body of the preserved specimen of holotype (NSMT-Pol H-766). Arrow indicates the enlarged oral ring of the everted proboscis. B, C, paratype (NSMT-Pol P-772): B, dorsal view of the anterior body of a live specimen; C, dorsal view of anterior end of the preserved specimen. D, Jaw of paratype (NSMT-Pol P-773). Scale bars: 1 mm (A, B); 0.5 mm (C); 0.1 mm (D).