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FIGURE 1 in A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae)
FIGURE 1. Sampling localities of examined specimens. Stars indicate location of the submarine caves.
FIGURE 18 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 18. Some common echinoids from northeastern Brazil in their natural habitat. (A) Eucidaris tribuloides on coral reef; (B) Diadema ascensionis on barrier reef; (C) Echinometra lucunter on rhodolith bed; (D) Lytechinus variegatus near seagrass; (E) Tripneustes ventricosus on coral patch; (F-H) Mellita aff. quinquiesperforata, Leodia sexiesperforata and Encope emarginata, respectively, on muddy bottom of sandy beach near hypersaline mangroves.
FIGURE 13 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 13. Morphological characters of Leodia sexiesperforata (UFPB/ECH.1013). (A) Aboral view; (B) Oral view, with small bivalve associated with lunule (arrow); (C) Aboral view of naked test; (D) Oral view of naked test; (E) Detail of peristome; (F) Bidentate pedicellariae; (G) Illustration of miliary spine from Mooi (1989); (H) Apical system.
FIGURE 16 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 16. Morphological characters of Agassizia excentrica (MZUSP, without voucher). (A) Aboral view; (B) Oral view; (C) Lateral view; (D) Aboral view of naked test; (E) Oral view of naked test; (F) Lateral view of naked test; (G) Apical system.
FIGURE 15 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 15. Morphological characters of Moira atropos (MZUSP00280). (A) Aboral view; (B) Oral view; (C) Lateral view; (D) Aboral view of naked test; (E) Oral view of naked test; (F) Lateral view of naked test; (G) Posterior view; (H–J) Illustrations of pedicellariae of M. atropos provided by Chesher (1963); (H) Valve of pedicellaria from floor of ambulacrum; (I–J) Valves of pedicellariae from aboral region. ab: aboral surface; or: oral surface.
FIGURE 7 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 7. Morphological characters of Lytechinus variegatus (UFPB/ECH.32). (A) Aboral view; (B) Oral view; (C–D) Valve of globiferous pedicellariae; (E) Valve of ophicephalous pedicellariae; (F) Valve of tridentate pedicellariae; (G) Valve of triphyllous pedicellariae; (H) Spicules of the tube feet; (I) Aboral view of naked test; (J) Oral view of naked test; (K) Tube foot ossicle; (L) Detail of the apical system; (M) Peristome; (N) Ambulacral plates; (O) Interambulacral plates.
FIGURE 14 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 14. Morphological characters of Encope emarginata (UFPB/ECH.1907). (A) Aboral view; (B) Oral view; (C) Aboral view of naked test; (D) Oral view of naked test; (E) Bidentate pedicellariae; (F–H) Valve of bidentate pedicellariae; (I) Apical system.
FIGURE 1 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 1. Map of South America showing the northeast region of Brazil and oceanic islands. (MA) Maranhão; (PI) Piauí; (CE) Ceará; (RN) Rio Grande do Norte; (PB) Paraíba; (PE) Pernambuco; (AL) Alagoas; (SE) Sergipe; (BA) Bahia; (AR) Atol das Rocas; (FN) Fernando de Noronha; and (AB) Abrolhos Archipelago.
FIGURE 12 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 12. Morphological characters of Mellita aff. quinquiesperforata (UFPB/ECH.1015). (A) Aboral view; (B) Oral view; (C) Aboral view of the naked test; (D) Oral view of naked test; (E) Bidentate pedicellariae; (F–G) Valve of bidentate pedicellariae; (H) Detail of spines from aboral surface; (I) Apical system; (J) Spines from ambitus.
FIGURE 11 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 11. Morphological characters of Echinocyamus grandiporus (UFPB/ECH.1974). (A) Aboral view; (B) Oral view; (C) Aboral view of naked test; (D) Oral view of naked test; (E) Apical disc (F–H) Illustrations of pedicellariae of E. grandiporus provided by Mortensen (1907); (F) Valve of tridentate pedicellariae; (G) Valve of triphyllous pedicellariae; (H) Valve of ophicephalous pedicellariae; (I) Lateral view of naked test.
FIGURE 4 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 4. Morphological characters of Phormosoma placenta (EqMN2341). (A) Aboral view. (B) Detail of apical system; (C) Oral view; (D) Peristome; (E) Ambulacral plates; (F) Interambulacral plates; (G) Valve of tridentate pedicellariae.
FIGURE 8 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 8. Morphological characters of Tripneustes ventricosus (UFPB/ECH.1722). (A) Aboral view; (B) Oral view; (C–D) Valve of globiferous pedicellariae; (E) Valve of ophicephalous pedicellariae; (F) Valve of tridentate pedicellariae; (G) Valve of triphyllous pedicellariae; (H) C-shaped spicules of tube feet; (I) Tube foot ossicle; (J) Aboral view of naked test; (L)) Detail of the apical system; (M) Ambulacral plates; (N) Interambulacral plates.
FIGURE 19 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 19. Ecological aspects of some echinoids from northeastern Brazil. (A) Eucidaris tribuloides parasitized by eulimid gastropod (arrow); (B) Partial view of coastal reef eroded by Echinometra lucunter; (C) Lytechinus variegatus on coral reef exhibiting covering behaviour at night; (D) Dead specimen of Lytechinus variegatus recently preyed upon (arrow) by juvenile Cassis tuberosa; (E) Dissodactylus crab associated with oral surface of sand dollar Encope emarginata on sandy beach; (F) Diseased specimen of Mellita aff. quinquiesperforata; (G) Dead sand dollars (M. aff. quinquiesperforata) on sandy beach after disease outbreak.
FIGURE 3 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 3. Morphological characters of Eucidaris tribuloides (UFPB/ECH.1902). (A) Aboral view; (B) Oral view; (C) Lateral view; (D) Valve of tridentate pedicellariae; (E) Spicules of tube feet; (F) Valve of globiferous pedicellariae; (G) Aboral view of naked test; (H) Oral view of naked test; (I) Tube foot ossicle; (J) Detail of apical system; (K) Detail of peristome; (L) Ambulacral plates; (M) Interambulacral plates.
FIGURE 10 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 10. Morphological characters of Clypeaster subdepressus (UFBA00072). (A) Aboral view; (B) Oral view; (C) Lateral view; (D) Aboral view of naked test; (E) Oral view of naked test; (F) Madreporic plate; (G) Peristome and basicoronal plates; (H) Valve of ophicephalous pedicellariae.
FIGURE 6 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 6. Morphological characters of Echinometra lucunter (UFPB/ECH.33, UFPB/ECH.1514). (A) Aboral view; (B) Oral view; (C–D) Valve of globiferous pedicellariae; (E) Valve of ophicephalous pedicellariae; (F) Valve of tridentate pedicellariae; (G) Tube foot ossicle; (H) Spicules of the tube feet; (I) Aboral view of naked test; (J) Oral view of naked test; (K) Apical system; (L) Ambulacral plates; (M) Interambulacral plates.
FIGURE 2 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 2. Some littoral environments and shallow-water biotopes where echinoids are found in northeastern Brazil. (A) Coral reef; (B) Sandy beach; (C) Rhodolith bed; (D) Macroalgal bank; (E) Fringing reef; (F) Seagrass bed (Halodule wrightii Ascherson); (G) Millepora patch reef.
FIGURE 5 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil
FIGURE 5. Morphological characters of Plesiodiadema antillarum (UFPB/ECH.2293). (A–G) and Cassidulus infidus (H–I). (A) Aboral view; (B) Oral view, arrow showing buccal plate; (C) Lateral view; (D–G) Illustrations of pedicellariae of P. antillarum from Mortensen (1904); (D) Valve of large form ophicephalous pedicellariae; (E) Valve of small form ophicephalous pedicellariae; (F) Valve of triphyllous pedicellariae; (G) Valve of tridentate pedicellariae; (H) Aboral view; (I) Oral view.
FIGURE 5. Ophiactis modesta from the Persian Gulf. A, dorsal disc. B, oral frame. C, dorsal arm. D in New records of the brittle stars Ophiothela venusta and Ophiactis modesta (Echinodermata: Ophiuroidea) from the northern Persian Gulf, with morphological details
FIGURE 5. Ophiactis modesta from the Persian Gulf. A, dorsal disc. B, oral frame. C, dorsal arm. D, ventral arm. Abbreviations as in fig. 4, and DAP, dorsal arm plate, TS, tentacle scale. Scale bars in millimetre.
FIGURE 4 in New records of the brittle stars Ophiothela venusta and Ophiactis modesta (Echinodermata: Ophiuroidea) from the northern Persian Gulf, with morphological details
FIGURE 4. SEM images of Ophiothela venusta, ventral aspects. A, thick skin obscures all skeletal features. B, skin removed, exposing the skeleton, oral frame. C, ventral skeleton and radial shields from below. D, teeth and few remaining tooth papillae, oral plates. E, series of arm vertebrae, lateral aspect. AS, adoral shield, DP, dental plate, GP, genital plate, k, keel, LAP, lateral arm plate, M, madreporite, OP, oral plate, OS, oral shield, PB, podial basin of second tentacle pore, RS, radial shield, SA, spine articulation, T, tooth, TF, second tube foot, TP, tooth papillae, V, vertebra, VAP, ventral arm plate. Scale bars in millimetre.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.