Sea urchin

天、夏天及冬天進行繁殖，約於滿月的時份達至最高峰。 Schroeder, TE. Development of a 'primitive' sea urchin (Eucidaris tribuloides): irregularities in the hyaline layer, micromeres

碱基互补配对原则 核酸双螺旋 Elson D, Chargaff E. On the deoxyribonucleic acid content of sea urchin gametes. Experientia. 1952, 8 (4): 143–145. PMID 14945441. S2CID 36803326

Lawrence, Edible sea urchins: biology and ecology, p. 410 Alan Davidson, Oxford Companion to Food, s.v. sea urchin Lawrence, John M., "Sea Urchin Roe Cuisine"

vulcani Guensburg, 1984：地層為卡拉多克统，出土於美國 †Bothriocidaris d'Eichwald 1859 (sea urchin). Fossilworks. [2019-09-21]. （原始内容存档于2020-11-11）.  Bothriocidaris Eichwald

T.; López-Pérez, R. A.; Leyte-Morales, G. E. Bioerosion caused by the sea urchin Diadema mexicanum (Echinodermata: Echinoidea) at Bahías de Huatulco, Western