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Fig. 10. Paracalliope dichotomus Morino, 1991 in Two Species of Paracalliopiidae from the Ryukyu Archipelago in Japan, with the Description of a New Species (Crustacea: Amphipoda)

Fig. 10. Paracalliope dichotomus Morino, 1991, male (OMNH-Ar-12087), 2.3 mm, habitus, right lateral view.

Fig. 9 in Two Species of Paracalliopiidae from the Ryukyu Archipelago in Japan, with the Description of a New Species (Crustacea: Amphipoda)

Fig. 9. Mucrocalliope ryukyuensis sp. nov. and M. shimantoensis Ariyama and Azuma, 2011. Length ratio of 4th article to 5th article in male antenna 2 peduncle relative to body length.

Fig. 8 in Two Species of Paracalliopiidae from the Ryukyu Archipelago in Japan, with the Description of a New Species (Crustacea: Amphipoda)

Fig. 8. Mucrocalliope ryukyuensis sp. nov. Photograph of a fixed specimen (male, 7 hours after fixation) collected together with paratype female (OMNH-Ar-12082), 2.3 mm, most part of pereopod 7 lost. Scale: 0.5 mm.

Fig. 6 in Two Species of Paracalliopiidae from the Ryukyu Archipelago in Japan, with the Description of a New Species (Crustacea: Amphipoda)

Fig. 6. Mucrocalliope ryukyuensis sp. nov., paratype, ovigerous female (OMNH-Ar-12081), 2.3 mm, habitus, right lateral view.

Fig. 5 in Two Species of Paracalliopiidae from the Ryukyu Archipelago in Japan, with the Description of a New Species (Crustacea: Amphipoda)

Fig. 5. Mucrocalliope ryukyuensis sp. nov., holotype, male (OMNH-Ar-12077), 2.8 mm. A, Left epimeral plates 1–3, lateral view; B–D, right pleopods 1–3, anterior views; E, right uropod 1, dorsolateral view; F, right uropod 2, lateral view; G, left uropod 3, medial view; H, telson, dorsal view. Scales: 0.1 mm.

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Fig. 3 in Acentrogobius limarius (Gobiidae) from the Ryukyu Islands, Japan: First Northern Hemisphere Records

Fig. 3. Distributional records of Acentrogobius limarius. Stars and circles indicate newly recorded and other localities, respectively. Closed and open symbols indicate records based on collected specimens and underwater photograph, respectively. Arrowhead indicates type locality. Papua New Guinean record was based on three specimens collected by G. Allen and M. Erdmann (unpublished).

Fig. 7 in Two Species of Paracalliopiidae from the Ryukyu Archipelago in Japan, with the Description of a New Species (Crustacea: Amphipoda)

Fig. 7. Mucrocalliope ryukyuensis sp. nov., A–H, paratype, ovigerous female (OMNH-Ar-12081), 2.3 mm; I, paratype, male (OMNH- Ar-12083), 2.1 mm. A, B, Left antennae 1, 2, lateral views; A1, accessory flagellum of left antenna 1, lateral view; B1, peduncular articles 2, 3 of right antenna 2, lateral view (reversed); C, D, left gnathopods 1, 2, lateral views; E, F, oostegites on left coxae 3, 4, lateral views; G, H, left pereopods 5, 7, lateral views; I, propodus and dactylus of left gnathopod 2, lateral view, slender setae omitted. Scales: 0.05 mm.

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Fig. 1 in Acentrogobius limarius (Gobiidae) from the Ryukyu Islands, Japan: First Northern Hemisphere Records

Fig. 1. Photographs of Acentrogobius limarius from: A–C, Atetsu, Amami-oshima island, Amami Islands, Ryukyu Islands, Japan (YCM-P 45483, 31.7 mm SL); D, Amitori Bay, Iriomote-jima island, Yaeyama Islands, Ryukyu Islands, Japan (specimen not collected). A, Fresh coloration; B, preserved coloration; C, radiograph; D, underwater photograph taken at 8 m depth (Photo: K. Yano).

Fig. 4 in Two Species of Paracalliopiidae from the Ryukyu Archipelago in Japan, with the Description of a New Species (Crustacea: Amphipoda)

Fig. 4. Mucrocalliope ryukyuensis sp. nov., A–G, holotype, male (OMNH-Ar-12077), 2.8 mm; E1, paratype, male (OMNH-Ar-12078), 2.5 mm. A, Right gnathopod 1, lateral view; B, left gnathopod 2, lateral view; B1, palm and dactylus of left gnathopod 2, medial view, slen- der setae omitted; C–G, right pereopods 3–7, lateral views, gills on coxae 5, 6 lost; E1, carpus–dactylus of left pereopod 5 (reversed). Scales: 0.1 mm.

Fig. 2 in New Distributional Records of Three Species of Euphylliidae (Cnidaria, Anthozoa, Hexacorallia, Scleractinia) from the Ryukyu Islands, Japan

Fig. 2. Corallum of Fimbriaphyllia species currently reported from the Ryukyu Islands, Japan, F. paraancora (A–D) and F. paradivisa (E–H). A, KAUM-CN-10, Tean, Amami-Oshima island, Kagoshima, Japan, depth of 32 m; B, CMNH-ZG09105, Tean, Amami-Oshima island, Kagoshima, Japan, depth of 35 m; C, CMNH-ZG 08523, Wase, Amami-Oshima island, Kagoshima, Japan, depth of 9 m; D, CMNH- ZG 07195, Ii-nanshi, Ogamijima island, Okinawa, Japan, depth of 10 m; E, KAUM-CN-11, Tean, Amami-Oshima island, Kagoshima, Japan, depth of 32 m; F, CMNH-ZG 09661, Tean, Amami-Oshima island, Kagoshima, Japan, depth of 32 m; G, KAUM-CN-12, Henoko, Okinawajima island, Okinawa, Japan, depth of 28 m; H, CMNH-ZG-09661, Henoko, Okinawajima island, Japan, depth of 28 m.

Fig. 1 in New Distributional Records of Three Species of Euphylliidae (Cnidaria, Anthozoa, Hexacorallia, Scleractinia) from the Ryukyu Islands, Japan

Fig. 1. Underwater appearance of living corals. A, in situ photograph of the colonies of Fimbriaphyllia paraancora (KAUM-CN-10) on the left and F.paradivisa (KAUM-CN-11) at Tean, Amami-Oshima island, Kagoshima, Japan, on 21 December 2017; B, an aggregation of F.paradivisa approximately 3–5 m in diameters on the muddy bottom in the usually turbid inner bay at a depth 28 m, Henoko, Okinawajima island, Okinawa, Japan, on 25 November 2010; C, extended polyps of F. paradivisa showing branching tentacles with spherical ends; D, extended polyps of F. paraancora showing tentacles with anchor-shaped tips; E, in situ photograph of Catalaphyllia jardinei (KAUM-CN-14) at Tean, Amami-Oshima island, Kagoshima, Japan, on 21 December 2017; F, polyps of C. jardinei showing small bubble-shaped tentacles at the edge of the oral disc.

Fig. 4 in New Distributional Records of Three Species of Euphylliidae (Cnidaria, Anthozoa, Hexacorallia, Scleractinia) from the Ryukyu Islands, Japan

Fig. 4. Specimens of Catalaphyllia jardinei preserved in the Smithsonian National Museum of Natural History (Photographs taken by Allison Becker) (USNM). A–B, corallite of USNM 1259568, collected at 52–55 m deep off Manza Horshoe Cliffs, Onna, Okinawajima island, Okinawa, Japan, on 21 December 1988, by Robert F. Bolland; C–D, corallite of USNM 94409, collected at 27 m deep off Nago City, Nago, Okinawajima island, Okinawa, Japan, on 21 February 1992, by R. F. Bolland.

Fig. 3 in New Distributional Records of Three Species of Euphylliidae (Cnidaria, Anthozoa, Hexacorallia, Scleractinia) from the Ryukyu Islands, Japan

Fig. 3. Corallum of Catalaphyllia jardinei currently reported from Amami-Oshima island, Japan. A, side view of the corallite of KAUM- CN-14; B, view from the top side of the corallite and the calice of KAUM-CN-14; C, side view of the corallite of CMNH-ZG 09662; D, view from the top side of the corallite and the calice of CMNH-ZG 0966 showing three-forked branching of the calice.

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Fig.ç3.D isasterina akajimaensis sp. nov., holotype (NSMT E-6758). A, Anal pore and a patch; B, madreporite; C, proximal part of arm, abactinal view; D, oral plate pair and interradial uncalci ed area, some oral spines have been lost (see also Fig. 6 for oral plate pair and interradial uncalci ed area at another interradius); E, proximal part of ambulacral furrow (oral plates seen at the lower-le corner are drawn in Fig. 6); F, inferomarginal spinelets, abactinal view. Abbreviations: als, actinolateral spine; apo, anal pore; fs, furrow spine; imp, inferomarginal plate; ims, inferomarginal spine; ir, interradial; iua, interradial uncalci ed area; md, madreporite; op, oral plate; os, oral spine; r, radial; rp, rigid patch; sas, subambulacral spine. in A New Asterinid Sea Star, Disasterina akajimaensis (Echinodermata: Asteroidea) from the Ryukyu Islands, Japan, with Notes on the Genus Disasterina

Fig.ç3.D isasterina akajimaensis sp. nov., holotype (NSMT E-6758). A, Anal pore and a patch; B, madreporite; C, proximal part of arm, abactinal view; D, oral plate pair and interradial uncalci ed area, some oral spines have been lost (see also Fig. 6 for oral plate pair and interradial uncalci ed area at another interradius); E, proximal part of ambulacral furrow (oral plates seen at the lower-le corner are drawn in Fig. 6); F, inferomarginal spinelets, abactinal view. Abbreviations: als, actinolateral spine; apo, anal pore; fs, furrow spine; imp, inferomarginal plate; ims, inferomarginal spine; ir, interradial; iua, interradial uncalci ed area; md, madreporite; op, oral plate; os, oral spine; r, radial; rp, rigid patch; sas, subambulacral spine.

Fig. 15 in A New Species with Two New Subspecies of Rhinogobius (Teleostei: Gobiidae) from Yaeyama Group, the Ryukyu Islands, Japan

Fig. 15. Underwater photographs of Rhinogobius aonumai ishigakiensis taken at Ishigaki-jima Island, the Ryukyu Islands, Japan. Sakutagawa River: A (male, about 40 mm SL) and B (female, about 40 mm SL). Photographed by N. Oseko.

Fig. 17. Soft X in A New Species with Two New Subspecies of Rhinogobius (Teleostei: Gobiidae) from Yaeyama Group, the Ryukyu Islands, Japan

Fig. 17. Soft X-ray nagatives of holotypes of two subspecies of Rhinogobius aonumai. A: Rhinogobius aonumai aonumai, B: Rhinogobius aonumai ishigakiensis. Red and yellow spots indicate abdominal and caudal vertebrae, respectively; white arrows show anteriormost two pterygiophores (proximal radials) of second dorsal fin. Photographed and annotated by T. Suzuki.

Fig. 14 in A New Species with Two New Subspecies of Rhinogobius (Teleostei: Gobiidae) from Yaeyama Group, the Ryukyu Islands, Japan

Fig. 14. Freshly-collected paratypes of Rhinogobius aonumai ishigakiensis from Ishigaki-jima Island, the Ryukyu Islands, Japan. Miyaragawa River: A (OMNH-P 40912, male, 38.0 mm SL) and B (OMNH-P 40914, female, 38.4 mm SL); Sakuta-gawa River: C (KPM-NI 65588, male, 55.9 mm SL) and D (SPMN-PI 49270, female, 40.5 mm SL); Sokobaru-gawa River: E (OMNH-P 40911, male, 39.9 mm SL) and F (OMNH-P 40913, female, 33.3 mm SL). Photographed by T. Suzuki.

Fig. 11 in A New Species with Two New Subspecies of Rhinogobius (Teleostei: Gobiidae) from Yaeyama Group, the Ryukyu Islands, Japan

Fig. 11. Ventral view of pelvic fin (A) and dorsal view of head (B), in Rhinogobius aonumai ishigakiensis stained with Alizarin Red S. OMNH-P 48923, paratype, male, 35.5 mm SL, Sakuta-gawa River. White lines indicate position where proximal most segment of each branch alignes transversely with the fifth segmented ray. Black wedge indicates slits between branches. Black circles with black letters H′, K′, and L′ indicate sensory-canal pores. P1, P2, and P3 indicate anteriormost point of anterior extension of scaly area along predorsal midline, anteriormost point of anterior extensions of scaly area on temporal region, and greatest concaved point of scaly area between P1 and P2, respectively. Photographed and annotated by T. Suzuki.

Fig. 10 in A New Species with Two New Subspecies of Rhinogobius (Teleostei: Gobiidae) from Yaeyama Group, the Ryukyu Islands, Japan

Fig. 10. Female paratype of Rhinogobius aonumai ishigakiensis (SPMN-PI 49270, female, 45.0 mm SL) collected from Sakutagawa River, Ishigaki-jima Island, the Yaeyama Group of the Ryukyu Islands, Japan. A and B: freshly-collected; C: alcoholpreserved. Photographed by T. Suzuki.

Fig. 12 in A New Species with Two New Subspecies of Rhinogobius (Teleostei: Gobiidae) from Yaeyama Group, the Ryukyu Islands, Japan

Fig. 12. Lateral view of body (A) and ventral view of belly (B) in Rhinogobius aonumai ishigakiensis stained with Alizarin Red S. OMNH-P 48923, paratype, male, 35.5 mm SL, Sakuta-gawa River. Yellow spots indicate the lateral anterior margin of ctenoid scale area. Photographed and annotated by T. Suzuki.