{"refrec":{"BRefID":320050,"RR":"<b>Zhang, R.; Wang, C.; Zhou, Y.; Zhang, H.</b> (2019). Morphology and molecular phylogeny of two new species in genus <i>Freyastera</i> (Asteroidea: Brisingida: Freyellidae), with a revised key to close species and ecological remarks. <i>Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 154</i>: 103163. <a href=\"https://dx.doi.org/10.1016/j.dsr.2019.103163\" target=\"_blank\">https://dx.doi.org/10.1016/j.dsr.2019.103163</a>","BEntID":313489,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 154</i>: 103163. <a href=\"https://dx.doi.org/10.1016/j.dsr.2019.103163\" target=\"_blank\">https://dx.doi.org/10.1016/j.dsr.2019.103163</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Zhang, R.; Wang, C.; Zhou, Y.; Zhang, H.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Zhang, R. <i>et al.</i>","Englishabstract":"Freyastera (Downey, 1986) is a derived group of deep-sea starfish in the order Brisingida with 6 arms and slender ambulacral plates, whose taxonomy and phylogeny have rarely been investigated. In this research, two new species of <em>Freyastera</em> are reported from the northwest Pacific Ocean, both characterized by fairly long and numerous lateral spines and the presence of furrow spines. <em>Freyastera delicata</em> <strong>n. sp.</strong> is further distinguished from other species by having 6–8 spinelets arranged in a transverse line on each abactinal arm plate. <em>Freyastera basketa</em> <strong>n. sp.</strong> is similar to the Atlantic species <em>Freyastera sexradiata</em> (Perrier, 1885), but differs from the latter by the presence of pedicellariae on the abactinal surface and number of mouth spines and lateral spines. A revised key to <em>Freyastera</em> and potential <em>Freyastera</em> spp. from the genus <em>Freyella</em> (Perrier, 1885) is provided. Phylogenetic analysis was conducted using available molecular data for the order Brisingida. The intraspecific and interspecific divergence within <em>Freyastera</em> are recognized from a <em>COI</em> genetic distance matrix, in which some abnormal intraspecific distances are found between the known species, which might indicate the existence of cryptic species and an underestimated diversity in the genus. A phylogenetic tree of Brisingida is constructed based on a concatenated sequence dataset of <em>COI</em>, <em>16S</em> and <em>H3</em> gene fragments. The tree supports the affinity of <em>Freyastera</em> and <em>Freyella</em>, which together form a crown clade within the order. The global distribution and <em>in situ</em> observations of <em>Freyastera</em> are discussed to provide information on their ecological characteristics and diversity.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Morphology and molecular phylogeny of two new species in genus <i>Freyastera</i> (Asteroidea: Brisingida: Freyellidae), with a revised key to close species and ecological remarks","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-25 01:33:02.644940","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Freyastera; New species; Key; Molecular phylogeny; Global distribution","OtherDescriptors":null,"Notes":null,"AnaPub":2019,"MonPub":null,"DateUpdate":"2020-01-03","DateCreate":"2020-01-03","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000506714600006","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.dsr.2019.103163"},"refs":null,"anarec":{"AnaID":320050,"PubliDate":2019,"Pagination":"103163","XtraPublOfAnaID":null,"ISBN":null,"Volume":"154","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45506,"SerRR":"Deep-Sea Research, Part I. 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