| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] Univ Sao Paulo, Lab Invertebrados Marinhos, Museu Zool, Av Nazare 481, BR-04263000 Sao Paulo, SP - Brazil
[2] Univ Fed Sao Paulo, Lab Ecol & Conservacao Marinha, Rua Dr Carvalho Mendonca 144, BR-11070100 Santos, SP - Brazil
Total Affiliations: 2
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| Document type: | Review article |
| Source: | Journal of the Marine Biological Association of the United Kingdom; v. 101, n. 6 DEC 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Since the taxonomic revision of the Ophidiasteridae by H.L. Clark (1921), in which 20 genera were recognized as valid, several new genera and species were included in this family, and the boundaries between some of them became largely arbitrary. This also applies to Narcissia Gray, 1840, whose morphology and taxonomy are still very poorly understood today. The main goals of this research were: review the taxonomy of the genus Narcissia, from morphological studies; redescribe N. trigonaria Sladen, 1889 s. str.; characterize N. canariensis (d'Orbigny, 1839) and N. gracilis A.H. Clark, 1916, the two valid species most similar to N. trigonaria; review the validity of N. ahearnae Pawson, 2007 and N. trigonaria var. helenae Mortensen, 1933; review the validity of N. gracilis malpeloensis Downey, 1975. Altogether 370 specimens were analysed. All morphological structures of taxonomic importance have been illustrated, and, for the first time, the internal characters of this group were studied, from electron microscopy and microtomography. A new diagnosis for the genus Narcissia was constructed. Narcissia trigonaria was redescribed from a large specimen, from the type locality (Bahia, Brazil). Narcissia ahearnae is considered a valid species, and N. canariensis and N. trigonaria distinct entities. Narcissia trigonaria var. helenae is placed in the synonymy of N. trigonaria, and N. gracilis malpeloensis into the synonymy of N. gracilis. The dataset obtained in this work is by far the most complete acquired for the genus Narcissia. (AU) | |
| FAPESP's process: | 18/06311-1 - Inside the National Museum of Natural History, Smithsonian Institution collections: unraveling the genus Narcissia gray, 1840 (Echinodermata: Asteroidea: Ophidiasteridae) from morphological studies |
| Grantee: | Rosana Fernandes da Cunha |
| Support Opportunities: | Scholarships abroad - Research Internship - Master's degree |
| FAPESP's process: | 17/05663-9 - Taxonomic revision of Narcissia trigonaria Sladen, 1889 (Echinodermata: Asteroidea: Ophidiasteridae): a single species? |
| Grantee: | Rosana Fernandes da Cunha |
| Support Opportunities: | Scholarships in Brazil - Master |