{"https://codexery.com/invertebrates/e/part-1/echinoderm/": {"t": "echinoderm", "s": ""}, "https://codexery.com/marine-invertebrates/e/part-1/sea-urchin/": {"t": "sea-urchin", "s": ""}, "https://codexery.com/human-anatomy/e/part-1/epithelium/": {"t": "epithelium", "s": ""}, "https://codexery.com/sea-urchins/e/sea-urchins/arbacia-lixula/": {"t": "Arbacia lixula", "s": "A black sea urchin with uniform spines and an anal valve.", "i": "https://codexery.com/sea-urchins/img/sea-urchins/arbacia-lixula.webp", "c": "Frédéric Ducarme · via Wikipedia: Arbacia lixula · CC BY-SA 3.0"}, "https://codexery.com/sea-urchins/e/sea-urchins/arbacia-nigra/": {"t": "Arbacia nigra", "s": "The most common sea urchin on the coasts of Peru and Chile.", "i": "https://codexery.com/sea-urchins/img/sea-urchins/arbacia-nigra.webp", "c": "Bastian Riveros Flores · via Wikipedia: Arbacia nigra · CC BY 4.0"}, "https://codexery.com/sea-urchins/e/sea-urchins/arbacia-punctulata/": {"t": "Arbacia punctulata", "s": "A spherical, dark purple-spined sea urchin used in developmental biology.", "i": "https://codexery.com/sea-urchins/img/sea-urchins/arbacia-punctulata.webp", "c": "NOAA · via Wikipedia: Arbacia punctulata · Public domain"}}