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    Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species

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    Ravara, Ascensão, Aguado, M. Teresa, Rodrigues, Clara F., Génio, Luciana, Cunha, Marina R. (2019): Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species. European Journal of Taxonomy 539: 1-21, DOI: https://doi.org/10.5852/ejt.2019.53

    Thyasiroidea (Mollusca: Bivalvia) from the mud volcanoes of the Gulf of Cadiz (NE Atlantic)

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    Rodrigues, Clara F., Oliver, Graham, Cunha, Marina R. (2008): Thyasiroidea (Mollusca: Bivalvia) from the mud volcanoes of the Gulf of Cadiz (NE Atlantic). Zootaxa 1752: 41-56, DOI: 10.5281/zenodo.27424

    FIGURE 1 in Thyasiroidea (Mollusca: Bivalvia) from the mud volcanoes of the Gulf of Cadiz (NE Atlantic)

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    FIGURE 1. Map of the study area. Legend: Full circles, Mud volcanoes with Thyasiroidea: CA—Captain Arutyunov, CR—Carlos Ribeiro, Che—Chechaouen, Dar—Darwin, Mer—Mercator, Mek—Meknes, Por— Porto, Yum—Yuma; Empty circles, other mud volcanoes in the Gulf of Cadiz.Published as part of Rodrigues, Clara F., Oliver, Graham & Cunha, Marina R., 2008, Thyasiroidea (Mollusca: Bivalvia) from the mud volcanoes of the Gulf of Cadiz (NE Atlantic), pp. 41-56 in Zootaxa 1752 on page 42, DOI: 10.5281/zenodo.27424

    Fig. 1 in Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species

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    Fig. 1. Map with the locations of the sampling sites. CR = Carlos Ribeiro; HAP = Horseshoe Abyssal Plain; JB = Jezus Baraza; MV = mud volcano.Published as part of Ravara, Ascensão, Aguado, M. Teresa, Rodrigues, Clara F., Génio, Luciana & Cunha, Marina R., 2019, Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species, pp. 1-21 in European Journal of Taxonomy 539 on page 3, DOI: 10.5852/ejt.2019.539, http://zenodo.org/record/335354

    Mendicula ferruginosa Forbes 1844

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    Mendicula ferruginosa (Forbes, 1844) (Fig. 29) Material examined. Nine live-collected specimens, TTR 15, stn AT 575 B, Mercator mud volcano, Gulf of Cadiz, 35 º 17.903 N, 06º 38.715 W, 355 m, 26 July 2005 (DBUA 000834.01). Remarks. The heavily encrusted ferruginous deposit and subovate outline are characteristic of this ubiquitous species. It has been recorded from many parts of the Atlantic and Mediterranean in depths from 50 to 4825 m and has not been associated with any specific reducing environment (Payne & Allen 1991). Dufour (2005) classified this as having Type 2 gills with a single demibranch and showing no evidence of bacterial symbiosis.Published as part of Rodrigues, Clara F., Oliver, Graham & Cunha, Marina R., 2008, Thyasiroidea (Mollusca: Bivalvia) from the mud volcanoes of the Gulf of Cadiz (NE Atlantic), pp. 41-56 in Zootaxa 1752 on page 50, DOI: 10.5281/zenodo.27424

    Fig. 3 in Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species

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    Fig. 3. Craseoschema thyasiricola gen. et sp. nov. Line drawings. A. Anterior end, dorsal view. B. Prostomium, ventral view. C. Third parapodium, posterior view. D. Median parapodium, posterior view. E. Notochaeta from median parapodium. F. Ventralmost neurochaeta from the second parapodium. G. Dorsalmost neurochaeta from median parapodium.Published as part of Ravara, Ascensão, Aguado, M. Teresa, Rodrigues, Clara F., Génio, Luciana & Cunha, Marina R., 2019, Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species, pp. 1-21 in European Journal of Taxonomy 539 on page 13, DOI: 10.5852/ejt.2019.539, http://zenodo.org/record/335354

    Fig. 4 in Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species

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    Fig. 4. Craseoschema thyasiricola gen. et sp. nov. Stereo (A–C) and compound (D–E) microscope images. A. Prostomium, dorsal view. B. Median region, dorsal view. C. Pygidium, ventral view. D. Neuroacicula of a median parapodium. E. Neurochaetae of a median parapodium.Published as part of Ravara, Ascensão, Aguado, M. Teresa, Rodrigues, Clara F., Génio, Luciana & Cunha, Marina R., 2019, Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species, pp. 1-21 in European Journal of Taxonomy 539 on page 14, DOI: 10.5852/ejt.2019.539, http://zenodo.org/record/335354

    Fig. 2 in Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species

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    Fig. 2. Maximum likelihood tree of the concatenated data set, including the genes COI, H3, 16S and 18S. Bootstrap support values are shown below the nodes.Published as part of Ravara, Ascensão, Aguado, M. Teresa, Rodrigues, Clara F., Génio, Luciana & Cunha, Marina R., 2019, Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species, pp. 1-21 in European Journal of Taxonomy 539 on page 8, DOI: 10.5852/ejt.2019.539, http://zenodo.org/record/335354

    Fig. 5 in Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species

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    Fig. 5. Craseoschema thyasiricola gen. et sp. nov. SEM images. A. Fragment from median region, posterior view. B. Median parapodium, posterior view. C. Notochaetae of median parapodium. D. Notochaetal tips. E–F. Dorsalmost neurochaetae. G–H. Ventralmost neurochaetae.Published as part of Ravara, Ascensão, Aguado, M. Teresa, Rodrigues, Clara F., Génio, Luciana & Cunha, Marina R., 2019, Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species, pp. 1-21 in European Journal of Taxonomy 539 on page 15, DOI: 10.5852/ejt.2019.539, http://zenodo.org/record/335354

    Amphiura grandisquama Lyman 1869

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    Amphiura grandisquama Lyman, 1869 Material examined. Vernadsky Ridge, TTR 15, stn AT 574, 1 ind. (DBUA 001067.01); Pen Duick Escarpment, TTR 16, stn AT 600, 4 inds. (DBUA 001068.01). Ecology and distribution. In the Eastern Atlantic A. grandisquama has been recorded from Iceland south to the Azores and Cape Verde Islands at depths of 861–1635 m (Paterson 1985). In the Gulf of Cadiz it was collected from carbonate chimneys and crusts at shallower depths (508–610 m) (Fig. 7 A).Published as part of Rodrigues, Clara F., Paterson, Gordon L. J., Cabrinovic, Andrew & Cunha, Marina R., 2011, Deep-sea ophiuroids (Echinodermata: Ophiuroidea: Ophiurida) from the Gulf of Cadiz (NE Atlantic), pp. 1-26 in Zootaxa 2754 on page 14, DOI: 10.5281/zenodo.27672
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