taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
F8431828103B53DDB0F3E36DBE786A72.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482587	https://doi.org/10.3897/zookeys.1261.162923.figure2	Figure 2. Elasmopus koreanus. A. Male, 6.4 mm (NSMT - Cr 33062), lateral view; B. Female, 6.2 mm (NSMT - Cr 33063), lateral view. Scale bar: 1.0 mm.	Figure 2. Elasmopus koreanus. A. Male, 6.4 mm (NSMT - Cr 33062), lateral view; B. Female, 6.2 mm (NSMT - Cr 33063), lateral view. Scale bar: 1.0 mm.	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
F8431828103B53DDB0F3E36DBE786A72.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482588	https://doi.org/10.3897/zookeys.1261.162923.figure3	Figure 3. Elasmopus koreanus, male, 6.4 mm (NSMT - Cr 33062). A. Left epimeral plate 3, lateral view; B. Right accessory flagellum, medial view; C. Left antenna 2, dorsal view; D. Incisor, lacinia mobilis, accessory setal row and molar process of left mandible, medial view; E. Right mandible, medial view; F. Telson, dorsal view. Scale bars: 0.3 mm (A, C); 0.1 mm (B, D – F).	Figure 3. Elasmopus koreanus, male, 6.4 mm (NSMT - Cr 33062). A. Left epimeral plate 3, lateral view; B. Right accessory flagellum, medial view; C. Left antenna 2, dorsal view; D. Incisor, lacinia mobilis, accessory setal row and molar process of left mandible, medial view; E. Right mandible, medial view; F. Telson, dorsal view. Scale bars: 0.3 mm (A, C); 0.1 mm (B, D – F).	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
F8431828103B53DDB0F3E36DBE786A72.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482589	https://doi.org/10.3897/zookeys.1261.162923.figure4	Figure 4. Elasmopus koreanus, A, B. Male, 6.4 mm (NSMT - Cr 33062); C, D. Female, 6.2 mm (NSMT - Cr 33063). A. Right gnathopod 1, medial view; B. Left gnathopod 2, lateral view; C. Right gnathopod 1, medial view; D. Right gnathopod 2, medial view. Scale bars: 0.3 mm.	Figure 4. Elasmopus koreanus, A, B. Male, 6.4 mm (NSMT - Cr 33062); C, D. Female, 6.2 mm (NSMT - Cr 33063). A. Right gnathopod 1, medial view; B. Left gnathopod 2, lateral view; C. Right gnathopod 1, medial view; D. Right gnathopod 2, medial view. Scale bars: 0.3 mm.	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
F8431828103B53DDB0F3E36DBE786A72.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482590	https://doi.org/10.3897/zookeys.1261.162923.figure5	Figure 5. Elasmopus koreanus, ontogenetic morphological change in male gnathopod 2, merus to dactylus of right gnathopod 2, medial view. A. Male, 10.1 mm (NSMT - Cr 33059); B. Male, 6.4 mm (NSMT - Cr 33062); C. Male, 5.0 mm (NNIBRIV 137288). Scale bars: 0.3 mm.	Figure 5. Elasmopus koreanus, ontogenetic morphological change in male gnathopod 2, merus to dactylus of right gnathopod 2, medial view. A. Male, 10.1 mm (NSMT - Cr 33059); B. Male, 6.4 mm (NSMT - Cr 33062); C. Male, 5.0 mm (NNIBRIV 137288). Scale bars: 0.3 mm.	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
F8431828103B53DDB0F3E36DBE786A72.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482586	https://doi.org/10.3897/zookeys.1261.162923.figure1	Figure 1. Map showing collecting sites of the examined specimens. Slashes within boxes indicate that two species were collected from the same site. A. Kannonzaki Coast, Kanagawa, the type locality of Elasmopus lumbiniger sp. nov.; B. Arasaki Coast, Kanagawa; C. Uchiura Beach, Chiba; D. Shirahama, Chiba; E. Ono Beach, Shizuoka; F. Ôura Beach, Shikinejima Island, Tokyo; G. Yakengahama Beach, Hachijojima Island, Tokyo; H. Uradome Beach, Tottori; I. Takurazaki, Wakayama; J. Kaichu Doro, Okinawa Island, Okinawa, the type locality of E. mukuinu; K. Songjeonggudeokpo-gil, Busan.	Figure 1. Map showing collecting sites of the examined specimens. Slashes within boxes indicate that two species were collected from the same site. A. Kannonzaki Coast, Kanagawa, the type locality of Elasmopus lumbiniger sp. nov.; B. Arasaki Coast, Kanagawa; C. Uchiura Beach, Chiba; D. Shirahama, Chiba; E. Ono Beach, Shizuoka; F. Ôura Beach, Shikinejima Island, Tokyo; G. Yakengahama Beach, Hachijojima Island, Tokyo; H. Uradome Beach, Tottori; I. Takurazaki, Wakayama; J. Kaichu Doro, Okinawa Island, Okinawa, the type locality of E. mukuinu; K. Songjeonggudeokpo-gil, Busan.	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
A6AB1033296A5F529BB1FAE054DAA466.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482591	https://doi.org/10.3897/zookeys.1261.162923.figure6	Figure 6. Elasmopus lumbiniger sp. nov. A. Paratype male, 13.8 mm (NSMT - Cr 33073), lateral view; B. Paratype female, 12.6 mm (NSMT - Cr 33075), lateral view. Scale bar: 1.0 mm.	Figure 6. Elasmopus lumbiniger sp. nov. A. Paratype male, 13.8 mm (NSMT - Cr 33073), lateral view; B. Paratype female, 12.6 mm (NSMT - Cr 33075), lateral view. Scale bar: 1.0 mm.	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
A6AB1033296A5F529BB1FAE054DAA466.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482592	https://doi.org/10.3897/zookeys.1261.162923.figure7	Figure 7. Elasmopus lumbiniger sp. nov. holotype male, 9.8 mm (NSMT - Cr 33064). A. Body, lateral view; B. Right epimeral plate 1, lateral view; C. Right epimeral plate 2, lateral view; D. Right epimeral plate 3, lateral view. Scale bars: 1.0 mm (A); 0.5 mm (B – D).	Figure 7. Elasmopus lumbiniger sp. nov. holotype male, 9.8 mm (NSMT - Cr 33064). A. Body, lateral view; B. Right epimeral plate 1, lateral view; C. Right epimeral plate 2, lateral view; D. Right epimeral plate 3, lateral view. Scale bars: 1.0 mm (A); 0.5 mm (B – D).	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
A6AB1033296A5F529BB1FAE054DAA466.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482593	https://doi.org/10.3897/zookeys.1261.162923.figure8	Figure 8. Elasmopus lumbiniger sp. nov. A, B, D – J. Holotype male, 9.8 mm (NSMT - Cr 33064); C. Paratype male, 9.9 mm (NSMT - Cr 33066). A. Right antenna 1, medial view; B. Left antenna 2, lateral view; C. Upper lip, anterior view; D, E. Incisor, lacinia mobilis, accessory setal row and molar process of left and right mandible, medial view; F. Left mandibular palp, medial view; G. Lower lip, ventral view; H. Right maxilla 1, dorsal view; I. Right maxilla 2, dorsal view; J. Maxilliped, dorsal view. Scale bars: 0.5 mm (A, B); 0.1 mm (C – J).	Figure 8. Elasmopus lumbiniger sp. nov. A, B, D – J. Holotype male, 9.8 mm (NSMT - Cr 33064); C. Paratype male, 9.9 mm (NSMT - Cr 33066). A. Right antenna 1, medial view; B. Left antenna 2, lateral view; C. Upper lip, anterior view; D, E. Incisor, lacinia mobilis, accessory setal row and molar process of left and right mandible, medial view; F. Left mandibular palp, medial view; G. Lower lip, ventral view; H. Right maxilla 1, dorsal view; I. Right maxilla 2, dorsal view; J. Maxilliped, dorsal view. Scale bars: 0.5 mm (A, B); 0.1 mm (C – J).	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
A6AB1033296A5F529BB1FAE054DAA466.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482594	https://doi.org/10.3897/zookeys.1261.162923.figure9	Figure 9. Elasmopus lumbiniger sp. nov. holotype male, 9.8 mm (NSMT - Cr 33064). A. Right gnathopod 1, medial view; B. Left gnathopod 1, lateral view; C. Palmar margin of right gnathopod 1 propodus, medial view; D. Palmar margin of left gnathopod 1 propodus, lateral view; E. Right gnathopod 2, medial view; F. Left gnathopod 2, lateral view, coxal gill omitted; G. Hump on right gnathopod 2 propodus, medial view. Gnathopod 2 coxal gill omitted. Scale bars: 0.5 mm (A, B, E, F); 0.1 mm (C, D, G).	Figure 9. Elasmopus lumbiniger sp. nov. holotype male, 9.8 mm (NSMT - Cr 33064). A. Right gnathopod 1, medial view; B. Left gnathopod 1, lateral view; C. Palmar margin of right gnathopod 1 propodus, medial view; D. Palmar margin of left gnathopod 1 propodus, lateral view; E. Right gnathopod 2, medial view; F. Left gnathopod 2, lateral view, coxal gill omitted; G. Hump on right gnathopod 2 propodus, medial view. Gnathopod 2 coxal gill omitted. Scale bars: 0.5 mm (A, B, E, F); 0.1 mm (C, D, G).	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
A6AB1033296A5F529BB1FAE054DAA466.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482595	https://doi.org/10.3897/zookeys.1261.162923.figure10	Figure 10. Elasmopus lumbiniger sp. nov. holotype male, 9.8 mm (NSMT - Cr 33064). A – E. Left pereopod 3–7, lateral view, coxal gills omitted; F. Left pleopod 1, posterior view; G. Retinacula of left pleopod 1, posterior view; H. Left pleopod 2, anterior view; I. Retinacula of left pleopod 2, anterior view; J. Left pleopod 3, anterior view; K. Retinacula of left pleopod 3, anterior view. Scale bars: 0.5 mm (A – F, H, J); 0.02 mm (G, I, K).	Figure 10. Elasmopus lumbiniger sp. nov. holotype male, 9.8 mm (NSMT - Cr 33064). A – E. Left pereopod 3–7, lateral view, coxal gills omitted; F. Left pleopod 1, posterior view; G. Retinacula of left pleopod 1, posterior view; H. Left pleopod 2, anterior view; I. Retinacula of left pleopod 2, anterior view; J. Left pleopod 3, anterior view; K. Retinacula of left pleopod 3, anterior view. Scale bars: 0.5 mm (A – F, H, J); 0.02 mm (G, I, K).	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
A6AB1033296A5F529BB1FAE054DAA466.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482596	https://doi.org/10.3897/zookeys.1261.162923.figure11	Figure 11. Elasmopus lumbiniger sp. nov. A – D. Holotype male, 9.8 mm (NSMT - Cr 33064); E – I. Paratype female, 8.7 mm (NSMT - Cr 33068). A. Left uropod 1, lateral view; B. Left uropod 2, lateral view; C. Right uropod 3, medial view; D. Telson, dorsal view; E. Right gnathopod 1, medial view; F. Palmar margin of right gnathopod 1 propodus, medial view; G. Left gnathopod 2, lateral view, coxal gill and oostegite omitted; H. Palmar margin of left gnathopod 2 propodus, lateral view; I. Left pereopod 3, lateral view. Scale bars: 0.3 mm (A – C); 0.1 mm (D, F, H); 0.5 mm (E, G, I).	Figure 11. Elasmopus lumbiniger sp. nov. A – D. Holotype male, 9.8 mm (NSMT - Cr 33064); E – I. Paratype female, 8.7 mm (NSMT - Cr 33068). A. Left uropod 1, lateral view; B. Left uropod 2, lateral view; C. Right uropod 3, medial view; D. Telson, dorsal view; E. Right gnathopod 1, medial view; F. Palmar margin of right gnathopod 1 propodus, medial view; G. Left gnathopod 2, lateral view, coxal gill and oostegite omitted; H. Palmar margin of left gnathopod 2 propodus, lateral view; I. Left pereopod 3, lateral view. Scale bars: 0.3 mm (A – C); 0.1 mm (D, F, H); 0.5 mm (E, G, I).	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
A6AB1033296A5F529BB1FAE054DAA466.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482597	https://doi.org/10.3897/zookeys.1261.162923.figure12	Figure 12. Elasmopus lumbiniger sp. nov., paratype male, 13.8 mm (NSMT - Cr 33073). Abdomen, lateral view. Scale bar: 0.5 mm.	Figure 12. Elasmopus lumbiniger sp. nov., paratype male, 13.8 mm (NSMT - Cr 33073). Abdomen, lateral view. Scale bar: 0.5 mm.	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
A6AB1033296A5F529BB1FAE054DAA466.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482586	https://doi.org/10.3897/zookeys.1261.162923.figure1	Figure 1. Map showing collecting sites of the examined specimens. Slashes within boxes indicate that two species were collected from the same site. A. Kannonzaki Coast, Kanagawa, the type locality of Elasmopus lumbiniger sp. nov.; B. Arasaki Coast, Kanagawa; C. Uchiura Beach, Chiba; D. Shirahama, Chiba; E. Ono Beach, Shizuoka; F. Ôura Beach, Shikinejima Island, Tokyo; G. Yakengahama Beach, Hachijojima Island, Tokyo; H. Uradome Beach, Tottori; I. Takurazaki, Wakayama; J. Kaichu Doro, Okinawa Island, Okinawa, the type locality of E. mukuinu; K. Songjeonggudeokpo-gil, Busan.	Figure 1. Map showing collecting sites of the examined specimens. Slashes within boxes indicate that two species were collected from the same site. A. Kannonzaki Coast, Kanagawa, the type locality of Elasmopus lumbiniger sp. nov.; B. Arasaki Coast, Kanagawa; C. Uchiura Beach, Chiba; D. Shirahama, Chiba; E. Ono Beach, Shizuoka; F. Ôura Beach, Shikinejima Island, Tokyo; G. Yakengahama Beach, Hachijojima Island, Tokyo; H. Uradome Beach, Tottori; I. Takurazaki, Wakayama; J. Kaichu Doro, Okinawa Island, Okinawa, the type locality of E. mukuinu; K. Songjeonggudeokpo-gil, Busan.	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
967A4C8DAA6D5A269D40336937981218.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482598	https://doi.org/10.3897/zookeys.1261.162923.figure13	Figure 13. Elasmopus mukuinu. A. Male, 9.3 mm (NSMT - Cr 33079), lateral view; B. Male, 8.7 mm (NSMT - Cr 33081), lateral view; C. Female, 5.1 mm (NSMT - Cr 33083), lateral view. Scale bars: 1.0 mm.	Figure 13. Elasmopus mukuinu. A. Male, 9.3 mm (NSMT - Cr 33079), lateral view; B. Male, 8.7 mm (NSMT - Cr 33081), lateral view; C. Female, 5.1 mm (NSMT - Cr 33083), lateral view. Scale bars: 1.0 mm.	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
967A4C8DAA6D5A269D40336937981218.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482599	https://doi.org/10.3897/zookeys.1261.162923.figure14	Figure 14. Elasmopus mukuinu. A – F. Male, 8.7 mm (NSMT - Cr 33081); G. Female, 5.1 mm (NSMT - Cr 33083). A. Right epimeral plate 3, lateral view; B. Right accessory flagellum, medial view; C, D. Incisor, lacinia mobilis, accessory setal row and molar process of left and right mandible, medial view; E. Right mandibular palp articles 2, 3, medial view; F. Telson, dorsal view; G. Right accessory flagellum, medial view. Scale bars: 0.3 mm (A); 0.1 mm (B – G).	Figure 14. Elasmopus mukuinu. A – F. Male, 8.7 mm (NSMT - Cr 33081); G. Female, 5.1 mm (NSMT - Cr 33083). A. Right epimeral plate 3, lateral view; B. Right accessory flagellum, medial view; C, D. Incisor, lacinia mobilis, accessory setal row and molar process of left and right mandible, medial view; E. Right mandibular palp articles 2, 3, medial view; F. Telson, dorsal view; G. Right accessory flagellum, medial view. Scale bars: 0.3 mm (A); 0.1 mm (B – G).	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
967A4C8DAA6D5A269D40336937981218.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482600	https://doi.org/10.3897/zookeys.1261.162923.figure15	Figure 15. Elasmopus mukuinu. A, B. Male, 8.7 mm (NSMT - Cr 33081); C, D. Female, 5.1 mm (NSMT - Cr 33083). A. Right gnathopod 1, medial view; B. Right gnathopod 2, medial view; C. Right gnathopod 1, medial view; D. Right gnathopod 2, medial view. Scale bars: 0.3 mm.	Figure 15. Elasmopus mukuinu. A, B. Male, 8.7 mm (NSMT - Cr 33081); C, D. Female, 5.1 mm (NSMT - Cr 33083). A. Right gnathopod 1, medial view; B. Right gnathopod 2, medial view; C. Right gnathopod 1, medial view; D. Right gnathopod 2, medial view. Scale bars: 0.3 mm.	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
967A4C8DAA6D5A269D40336937981218.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1482586	https://doi.org/10.3897/zookeys.1261.162923.figure1	Figure 1. Map showing collecting sites of the examined specimens. Slashes within boxes indicate that two species were collected from the same site. A. Kannonzaki Coast, Kanagawa, the type locality of Elasmopus lumbiniger sp. nov.; B. Arasaki Coast, Kanagawa; C. Uchiura Beach, Chiba; D. Shirahama, Chiba; E. Ono Beach, Shizuoka; F. Ôura Beach, Shikinejima Island, Tokyo; G. Yakengahama Beach, Hachijojima Island, Tokyo; H. Uradome Beach, Tottori; I. Takurazaki, Wakayama; J. Kaichu Doro, Okinawa Island, Okinawa, the type locality of E. mukuinu; K. Songjeonggudeokpo-gil, Busan.	Figure 1. Map showing collecting sites of the examined specimens. Slashes within boxes indicate that two species were collected from the same site. A. Kannonzaki Coast, Kanagawa, the type locality of Elasmopus lumbiniger sp. nov.; B. Arasaki Coast, Kanagawa; C. Uchiura Beach, Chiba; D. Shirahama, Chiba; E. Ono Beach, Shizuoka; F. Ôura Beach, Shikinejima Island, Tokyo; G. Yakengahama Beach, Hachijojima Island, Tokyo; H. Uradome Beach, Tottori; I. Takurazaki, Wakayama; J. Kaichu Doro, Okinawa Island, Okinawa, the type locality of E. mukuinu; K. Songjeonggudeokpo-gil, Busan.	2025-12-02	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko		Zenodo	biologists	Yoshimura, Hiro;Lee, Chi-Woo;Tomikawa, Ko			
