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14 results for “Ophioderma longicauda”
Fig. 1 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 1. Phylogenetic relationships and distribution of species of Ophioderma Müller & Troschel, 1840 in the Northeast and Tropical Atlantic Ocean and the Mediterranean Sea. A. Simplified phylogenetic relationships among species of Ophioderma described in this study, modified from Weber et al. (2019). Summary of reproductive strategy: S = broadcast spawner; B = brooder. Correspondence between species names, nuclear genetic clusters and COI mitochondrial lineages is summarized from Boissin et al. (2011) and Weber et al. (2019). C6 is tentatively assigned to O. zibrowii sp. nov. because it occurs far from the type locality and brooding species are expected to have low dispersal rates, leading to low gene flow between populations. B. Distribution of species of Ophioderma in the Northeast and Tropical Atlantic Ocean. C. Distribution of species of Ophioderma in the Mediterranean Sea.
Data from: Influence of the larval phase on connectivity: strong differences in the genetic structure of brooders and broadcasters in the Ophioderma longicauda species complex
Closely related species with divergent life-history traits are excellent models to infer the role of such traits in genetic diversity and connectivity. Ophioderma longicauda is a brittle star species complex composed of different genetic clusters, including brooders and broadcasters. These species diverged very recently and some of them are sympatric and ecologically syntopic, making them particularly suitable to study the consequences of their trait differences. At the scale of the geographic distribution of the broadcasters (Mediterranean Sea and north-eastern Atlantic), we sequenced the mitochondrial marker COI and genotyped an intron (i51) for 788 individuals. In addition, we sequenced 10 nuclear loci newly developed from transcriptome sequences, for six sympatric populations of brooders and broadcasters from Greece. At the large scale we found a high genetic structure within the brooders (COI: 0.07
Data from: Influence of the larval phase on connectivity: strong differences in the genetic structure of brooders and broadcasters in the Ophioderma longicauda species complex
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Fig. 12 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 12. SEM images of skeletal elements of Ophioderma zibrowii sp. nov., from non-type specimen of 15.4 mm disc diameter (SMNH-178455), Crete, Greece. A. Radial shield, external aspect, white arrows point to larger peripheral pores. B. Radial shield, internal aspect. C. Scale-free part magnified from Fig. 12A, note the absence of pores on the denser area (naked in intact animal, see Fig. 11A). D. Dental plate fragments. E. Adradial genital plate, lateral aspect. F. Distal end of Fig. 12E. G. Abradial genital plate. H. Oral plate, abradial face. I. Oral plate, adradial face, black arrows point to oral papillae sockets and pores. J. Arm vertebra, proximal face. K. Arm vertebra, distal face. L. Lateral arm plate, external face. M. Lateral arm plate, internal face. Abbreviations: dist = distal; dors = dorsal; prox = proximal; Sp = spurs; vent = ventral.
Fig. 11 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 11. Ophioderma zibrowii sp. nov., holotype (SMNH-Type-9188), digital images. A. Dorsal aspect, note the naked radial shields. B. Ventral aspect. C. Ventral arm. D. Dorsal arm, note the entire plates. E. Jaw. F. Brooded juveniles in interradius (arrow). Abbreviations: DAP = dorsal arm plate; M = madreporite; OS = oral shield; RS = radial shield; VAP = ventral arm plate.
Fig. 9 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 9. Ophioderma hybrida sp. nov., holotype (SMNH-Type-9185), digital images. A. Dorsal aspect. B. Ventral aspect. C–D. Two dorsal arms, note the multiple dorsal plates. E. Ventral arm. F. Jaws.
Fig. 8 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 8. SEM images of skeletal elements of Ophioderma africana sp. nov., from paratype of 15.7 mm disc diameter (SMNH-Type-7486). A. Radial shield, external aspect. B. Radial shield, internal aspect. C. Scale-free part magnified from Fig. 8A, white arrowheads point to granule sockets and pores, white arrows point to larger peripheral pores. D. Dental plate fragments. E–F. Adradial genital plate, two opposite lateral aspects. G. Abradial genital plate. H. Oral plate, abradial face. I. Oral plate, adradial face, black arrows point to oral papillae sockets and pores. J. Arm vertebra, proximal face. K. Arm vertebra, distal face. L. Lateral arm plate, external face. M. Lateral arm plate, internal face. Abbreviations: dist = distal; dors = dorsal; prox = proximal; Sp = spurs; vent = ventral.
Fig. 7 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 7. Ophioderma africana sp. nov., digital images. A–G. Holotype (SMNH-Type-7484). A. Dorsal aspect. B. Dorsal disc. C. Ventral aspect. D–E. Two dorsal arms, note multiple dorsal arm plates on both. F. Ventral arm. G. Mouth. H. Some paratypes (SMNH-Type-7487).
Fig. 6 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 6. SEM images of skeletal elements of Ophioderma guineense Greef, 1882, Thiouriba, Senegal, from specimen of 11.7 mm disc diameter (SMHN-178429). A. Radial shield external. B. Radial shield internal. C. Scale-free area magnified from Fig. 6A, white arrowheads point to granule sockets and pores, white arrows point to larger peripheral pores. D. Dental plate fragments. E–F. Adradial genital plate, two opposite lateral aspects. G. Abradial genital plate. H. Oral plate, abradial face I. Oral plate adradial face, black arrows point to oral papillae sockets and pores, white arrows point to granule socket pores. J. Arm vertebra proximal face. K. Arm vertebra distal face. L. Lateral arm plate, external face. M. Lateral arm plate, internal face. Abbreviations: dist = distal; dors = dorsal; prox = proximal; Sp = spurs; vent = ventral.
Fig. 5. Ophioderma guineense Greef, 1882 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 5. Ophioderma guineense Greef, 1882, material from Thiouriba, Senegal, digital images. A–D. Dark brown specimen with light green ventral side (SMNH-95511#1). A. Dorsal aspect. B. Dorsal arm. C. Ventral aspect. D. Ventral arm. – E–F. Light brown specimen with spotted disc and white ventral side (SMNH-95511#2). E. Dorsal aspect. F. Ventral disc. – G–I. Grey-brown specimen with spotted disc and white ventral side (SMNH-95511#3). G. Dorsal aspect. H. Dorsal arm. I. Ventral aspect.
Fig. 4. Ophioderma guineense Greef, 1882 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 4. Ophioderma guineense Greef, 1882, type specimens, digital images. A–D. Lectotype (ZMH E8315). A. Dorsal disc. B. Ventral disc. C. Dorsal arm. D. Jaws. – E–F. Paralectotype (ZMH E1686). E. Dorsal aspect. F. Ventral aspect. – G–H. Other paralectotype (ZMH E1686). G. Dorsal aspect. H. Ventral aspect.
Fig. 3 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 3. SEM images of skeletal elements of Ophioderma longicauda (Bruzelius, 1805). A–M. Non-type specimen of 15.5 mm disc diameter (SMNH-160226). A. Radial shield, external aspect. B. Radial shield, internal aspect. C. Scale-free area of Fig. 3A magnified, white arrowheads point to granule sockets and pores, white arrows point to large peripheral pores. D. Dental plate fragments, arrows point to granule pores. E. Adradial genital plate. F. Articulation knobs of Fig. 3E. G. Abradial genital plate. H. Oral plate, abradial face. I. Oral plate, adradial face, black arrows point to oral papillae sockets and pores, white arrows point to granule socket pores. J. Arm vertebra, proximal face. K. Arm vertebra, distal face. L. Lateral arm plate, external face. M. Lateral arm plate, internal face. – N–P. Non-type specimen of 12 mm disc diameter (SMNH-133258). N. Adradial genital plate, lateral view. O. Adradial genital plate, distal end. P. Radial shield, internal aspect, note the different shape from Fig. 3A–B. Abbreviations: dist = distal; dors = dorsal; prox = proximal; S = suture line; Sp = spurs; vent = ventral.
Fig. 2 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 2. Ophioderma longicauda (Bruzelius, 1805), neotype (SMNH-Type-8729), digital images. A. Dorsal disc and arm bases, arrow points to regenerating part. B. Ventral disc and basal arms. C. Basal dorsal arm, note the multiple dorsal plates. D. Regenerating arm, dorsal plates already more than one. E. Ventral arm base. F. Jaws. Abbreviations: 2°AdShSp = second adoral shield spine; AdShSp = adoral shield spine; DAP = dorsal arm plate; IPa = infradental papilla; LOPa = oral papillae; LyOS = Lyman's ossicle; M = madreporite; OS = oral shield; TPa = tooth papillae; VAP = ventral arm plate.
Fig. 10 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 10. Colour variation and numbers of dorsal arm plates (DAP) in Ophioderma hybrida sp. nov., digital images. Right column shows dorsal disc, middle column shows dorsal arm, left column shows ventral disc. A–F. Paratypes from Tunisia, Monastir (SMNH-Type-9187). A–C. MON17, single DAPs. D–F. MON16, one arm with 1–2 DAPs, other arm with ≥ 2 DAPs. – G–O. Paratypes from Tunisia, Kelibia (SMNH-Type-9186). G–I. KEL5, ≥ 2 DAPs. J–L. KEL10, single DAPs. M–O. KEL12, ≥ 2 DAPs. For specimen data see Table 2.
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