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Systematics of stalked jellyfishes (Cnidaria: Staurozoa)

Catalog Data

Author:
Marques, Antonio C.  Search this
Miranda, Lucília S.  Search this
Mills, Claudia E.  Search this
Falconer, Audrey  Search this
Fenwick, David  Search this
Collins, Allen Gilbert  Search this
Hirano, Yayoi M.  Search this
Object Type:
Smithsonian staff publication
Electronic document
Year:
2016
Abstract:
Staurozoan classification is highly subjective, based on phylogeny-free inferences, and suborders, families, and genera are commonly defined by homoplasies. Additionally, many characters used in the taxonomy of the group have ontogenetic and intraspecific variation, and demand new and consistent assessments to establish their correct homologies. Consequently, Staurozoa is in need of a thorough systematic revision. The aim of this study is to propose a comprehensive phylogenetic hypothesis for Staurozoa, providing the first phylogenetic classification for the group. According to our working hypothesis based on a combined set of molecular data (mitochondrial markers COI and 16S, and nuclear markers ITS, 18S, and 28S), the traditional suborders Cleistocarpida (animals with claustrum) and Eleutherocarpida (animals without claustrum) are not monophyletic. Instead, our results show that staurozoans are divided into two groups, herein named Amyostaurida and Myostaurida, which can be distinguished by the absence/presence of interradial longitudinal muscles in the peduncle, respectively. We propose a taxonomic revision at the family and genus levels that preserves the monophyly of taxa. We provide a key for staurozoan genera and discuss the evolution of the main characters used in staurozoan taxonomy.
Doi:
10.7717/peerj.1951
Citation:
Miranda, Lucília S., Hirano, Yayoi M., Mills, Claudia E., Falconer, Audrey, Fenwick, David, Marques, Antonio C. and Collins, Allen Gilbert. 2016. Systematics of stalked jellyfishes (Cnidaria: Staurozoa). <i>PeerJ<i>, 4 doi:10.7717/peerj.1951
Topic:
Invertebrates  Search this
Animals  Search this
Zoology  Search this
Natural History  Search this
See others in:
Invertebrate Zoology
Data source:
Smithsonian Libraries
EDAN-URL:
edanmdm:SILSRO_139889