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Boletín de Investigaciones Marinas y Costeras - INVEMAR
versión impresa ISSN 0122-9761
Resumen
YEPES-GAURISAS, Daniela y GUERRERO-CORREA, Giovvana M.. First record and range extension of the deep-sea urchin Hygrosoma petersii (A. Agassiz, 1880) (Echinodermata, Echinoidea) for the southern Caribbean. Bol. Invest. Mar. Cost. [online]. 2022, vol.51, n.1, pp.207-214. Epub 01-Ago-2022. ISSN 0122-9761. https://doi.org/10.25268/bimc.invemar.2022.51.1.1168.
Hygrosoma petersii (A. Agassiz, 1880) is a regular deep-sea urchin from the family Echinothuriidae that has undergone numerous taxonomic changes throughout history. It is characterized by the presence of tridentate pedicellariae with spoon-shaped valves with a serrated edge. The geographic distribution of Hygrosoma petersii is extended to the Colombian Caribbean, as the southernmost record of the Caribbean Sea. Species description and, for the first time, Scanning Electron Microscopy (SEM) photographs of its pedicellariae and sphaeridia are presented, comparing it with its Caribbean congeners.
Palabras clave : Deep-Sea; Colombian Caribbean; Echinothuriidae; tridentate pedicellariae; sphaeridia..