taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03E54A3CFFE4FFDDFF3B9548A66CF80E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/21458064/files/figure.png	https://doi.org/10.5281/zenodo.21458064	FIGURE 2. Leptuca capillosa sp. nov., paratype, A, B, D–F, male (CW 11.75 mm CL 7.53 mm), C, male (CW 9.62 mm CL 6.47 mm) (UNI 850), El Rompido, Esmeraldas, Ecuador.A, dorsal view of male; B, front view; C, outer view of major cheliped; D, inner cheliped; E, ocular view; F, third ambulatory. Abbeviations: a, frontal lobe; b, eyelid; c, lower orbital dentations; d, antero-lateral angle; e, dorso-lateral line; f, posterior stria; g, post-orbital sulcus; h, pile patches; i, H-depression; j, lower manus; k, carpal setae; l, tuberculate keel; m, pollex teetch; n, pubescence at articluation; o, dactyl teeth; p, oblique ridge; q, pre-articulation tubercle ridge; r, setae on small cheliped; s, merus segment. Scale bars = 10 mm.	FIGURE 2. Leptuca capillosa sp. nov., paratype, A, B, D–F, male (CW 11.75 mm CL 7.53 mm), C, male (CW 9.62 mm CL 6.47 mm) (UNI 850), El Rompido, Esmeraldas, Ecuador.A, dorsal view of male; B, front view; C, outer view of major cheliped; D, inner cheliped; E, ocular view; F, third ambulatory. Abbeviations: a, frontal lobe; b, eyelid; c, lower orbital dentations; d, antero-lateral angle; e, dorso-lateral line; f, posterior stria; g, post-orbital sulcus; h, pile patches; i, H-depression; j, lower manus; k, carpal setae; l, tuberculate keel; m, pollex teetch; n, pubescence at articluation; o, dactyl teeth; p, oblique ridge; q, pre-articulation tubercle ridge; r, setae on small cheliped; s, merus segment. Scale bars = 10 mm.	2026-07-20	Thurman, Carl;Capparelli, Mariana		Zenodo	biologists	Thurman, Carl;Capparelli, Mariana			
03E54A3CFFE4FFDDFF3B9548A66CF80E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/21458066/files/figure.png	https://doi.org/10.5281/zenodo.21458066	FIGURE 3. Leptuca capillosa sp. nov., paratype, female (CW 10.05 mm CL 6.91 mm) (UNI 853), Muisne, Esmeraldas, Ecuador.A, dorsal view; B, third ambulatory leg; C, ventral view. Abbreviations: a, H-depression, mesogastric; b, oval patches of pile; c, cutical and setae on small chelipeds. Scale bar = 10 mm.	FIGURE 3. Leptuca capillosa sp. nov., paratype, female (CW 10.05 mm CL 6.91 mm) (UNI 853), Muisne, Esmeraldas, Ecuador.A, dorsal view; B, third ambulatory leg; C, ventral view. Abbreviations: a, H-depression, mesogastric; b, oval patches of pile; c, cutical and setae on small chelipeds. Scale bar = 10 mm.	2026-07-20	Thurman, Carl;Capparelli, Mariana		Zenodo	biologists	Thurman, Carl;Capparelli, Mariana			
03E54A3CFFE4FFDDFF3B9548A66CF80E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/21458068/files/figure.png	https://doi.org/10.5281/zenodo.21458068	FIGURE 4. Leptuca capillosa sp. nov. A–C, paratype, male (CW 13.82 mm, CL 8.87 mm) (USNM 143601), El Malecón de Salada, Guayaquil, Ecuador; D, holotype, male (CW 10.36 mm, CL 6.89 mm) (USNM 143602), Puerto Bolivar, El Oro, Ecuador. A, anterior view, right male G1 pereopod (setae removed); B, lateral view, right male G1 pereopod; C, ventral view, right male G1 pereopod; D, overall habitus. Abbreviations: a—patches of pile; l—lateral flange, m—medial flange, o—genital opening. Scale bars: A–C, 0.5 mm; D, 10 mm.	FIGURE 4. Leptuca capillosa sp. nov. A–C, paratype, male (CW 13.82 mm, CL 8.87 mm) (USNM 143601), El Malecón de Salada, Guayaquil, Ecuador; D, holotype, male (CW 10.36 mm, CL 6.89 mm) (USNM 143602), Puerto Bolivar, El Oro, Ecuador. A, anterior view, right male G1 pereopod (setae removed); B, lateral view, right male G1 pereopod; C, ventral view, right male G1 pereopod; D, overall habitus. Abbreviations: a—patches of pile; l—lateral flange, m—medial flange, o—genital opening. Scale bars: A–C, 0.5 mm; D, 10 mm.	2026-07-20	Thurman, Carl;Capparelli, Mariana		Zenodo	biologists	Thurman, Carl;Capparelli, Mariana			
03E54A3CFFE4FFDDFF3B9548A66CF80E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/21458070/files/figure.png	https://doi.org/10.5281/zenodo.21458070	FIGURE 5. Carapace length to carapace width relationship. ○—male (N =26), ●—female (N = 20). Least-squares linear regression (– ⋅⋅ – ⋅⋅): Carapace length = 0.6614 carapace width—0.057 (N = 46, r* = 0.9690, r2 = 0.9390).	FIGURE 5. Carapace length to carapace width relationship. ○—male (N =26), ●—female (N = 20). Least-squares linear regression (– ⋅⋅ – ⋅⋅): Carapace length = 0.6614 carapace width—0.057 (N = 46, r* = 0.9690, r2 = 0.9390).	2026-07-20	Thurman, Carl;Capparelli, Mariana		Zenodo	biologists	Thurman, Carl;Capparelli, Mariana			
03E54A3CFFE4FFDDFF3B9548A66CF80E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/21458074/files/figure.png	https://doi.org/10.5281/zenodo.21458074	FIGURE 6. Relation of frontal/carapace width ratio to carapace width (mm) (N = 46). Least-squares linear regression (– ⋅⋅ – ⋅⋅): Frontal/carapace width = -0.0035 carapace width + 0.3321 (r = -0.2611, r2 = 0.0682),—mean frontal/carapace proportion 0.30 ± 0.02. Average frontal width = 2.55 ± 0.38 mm.	FIGURE 6. Relation of frontal/carapace width ratio to carapace width (mm) (N = 46). Least-squares linear regression (– ⋅⋅ – ⋅⋅): Frontal/carapace width = -0.0035 carapace width + 0.3321 (r = -0.2611, r2 = 0.0682),—mean frontal/carapace proportion 0.30 ± 0.02. Average frontal width = 2.55 ± 0.38 mm.	2026-07-20	Thurman, Carl;Capparelli, Mariana		Zenodo	biologists	Thurman, Carl;Capparelli, Mariana			
03E54A3CFFE4FFDDFF3B9548A66CF80E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/21458076/files/figure.png	https://doi.org/10.5281/zenodo.21458076	FIGURE 7. Major cheliped morphology in Leptuca capillosa sp. nov. (N = 26 males). A, relation between carapace width (mm) and propodus length/carapace width ratio (propodus/carapace width = 0.1115 carapace width + 0.3245; r* = 0.61; r2 = 0.3825), average propodus /carapace ratio = 1.27 ± 0.22 (Θ); B, relationship between carapace width (mm) and pollex/propodus length (Pollex/propodus = 0.0331 carapace width + 0.1611; r* = 0.6799, r2 = 0.4623), average pollex/propodus ratio = 0.44 ± 0.06 (Θ).	FIGURE 7. Major cheliped morphology in Leptuca capillosa sp. nov. (N = 26 males). A, relation between carapace width (mm) and propodus length/carapace width ratio (propodus/carapace width = 0.1115 carapace width + 0.3245; r* = 0.61; r2 = 0.3825), average propodus /carapace ratio = 1.27 ± 0.22 (Θ); B, relationship between carapace width (mm) and pollex/propodus length (Pollex/propodus = 0.0331 carapace width + 0.1611; r* = 0.6799, r2 = 0.4623), average pollex/propodus ratio = 0.44 ± 0.06 (Θ).	2026-07-20	Thurman, Carl;Capparelli, Mariana		Zenodo	biologists	Thurman, Carl;Capparelli, Mariana			
03E54A3CFFE4FFDDFF3B9548A66CF80E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/21458078/files/figure.png	https://doi.org/10.5281/zenodo.21458078	FIGURE 8. Pleon width in male (N = 26) and female (N = 20) Leptuca capillosa sp. nov. A, male pleon/carapace width ratio and carapace width linear regression = pleon/carapace width ratio = -0.00861 carapace width + 0.3297 (r = -0.3759, r2 = 0.1413), where average male pleon/carapace width ratio = 0.26 ± 0.03 (Θ); B, female pleon/carapace width ratio linear regression = pleon/carapace ratio = 0.03539 carapace width + 0.2974 (r =0.4359; r2 = 0.19001), where average female pleon/carapace width ratio = 0.59 ± 0.08 (Δ).	FIGURE 8. Pleon width in male (N = 26) and female (N = 20) Leptuca capillosa sp. nov. A, male pleon/carapace width ratio and carapace width linear regression = pleon/carapace width ratio = -0.00861 carapace width + 0.3297 (r = -0.3759, r2 = 0.1413), where average male pleon/carapace width ratio = 0.26 ± 0.03 (Θ); B, female pleon/carapace width ratio linear regression = pleon/carapace ratio = 0.03539 carapace width + 0.2974 (r =0.4359; r2 = 0.19001), where average female pleon/carapace width ratio = 0.59 ± 0.08 (Δ).	2026-07-20	Thurman, Carl;Capparelli, Mariana		Zenodo	biologists	Thurman, Carl;Capparelli, Mariana			
03E54A3CFFE4FFDDFF3B9548A66CF80E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/21458060/files/figure.png	https://doi.org/10.5281/zenodo.21458060	FIGURE 1. Location of fiddler crab collecting sites along the coast of Ecuador.	FIGURE 1. Location of fiddler crab collecting sites along the coast of Ecuador.	2026-07-20	Thurman, Carl;Capparelli, Mariana		Zenodo	biologists	Thurman, Carl;Capparelli, Mariana			
03E54A3CFFE4FFDDFF3B9548A66CF80E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/21458084/files/figure.png	https://doi.org/10.5281/zenodo.21458084	FIGURE 9. Leptuca capillosa sp. nov. habitat. South bank of the Rio Verde, Cevicangre, near Palestina, Esmeraldas, Ecuador (1.048369 N, -79.41804W). Osmolality—301 mOsm, PSU—10 ‰.	FIGURE 9. Leptuca capillosa sp. nov. habitat. South bank of the Rio Verde, Cevicangre, near Palestina, Esmeraldas, Ecuador (1.048369 N, -79.41804W). Osmolality—301 mOsm, PSU—10 ‰.	2026-07-20	Thurman, Carl;Capparelli, Mariana		Zenodo	biologists	Thurman, Carl;Capparelli, Mariana			
