{"refrec":{"BRefID":339603,"RR":"<b>Boyko, C.B.; Williams, J.D.; Rhodes, A.</b> (2021). First record of a tantulocaridan, <i>Microdajus</i> sp. (Crustacea: Tantulocarida), from the northwestern Atlantic. <i>Nauplius 29</i>: e2021005. <a href=\"https://dx.doi.org/10.1590/2358-2936e2021005\" target=\"_blank\">https://dx.doi.org/10.1590/2358-2936e2021005</a>","BEntID":336238,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Nauplius 29</i>: e2021005. <a href=\"https://dx.doi.org/10.1590/2358-2936e2021005\" target=\"_blank\">https://dx.doi.org/10.1590/2358-2936e2021005</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Boyko, C.B.; Williams, J.D.; Rhodes, A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Boyko, C.B.; Williams, J.D.; Rhodes, A.","Englishabstract":"A putative new species of tantulocaridan is reported parasitizing a species of typhlotanaid (Tanaideacea) from the Gulf of Mexico at depths up to 2767 m. The tantulocaridan belongs to <i>Microdajus</i> Greve, 1965, species of which are all known from tanaid hosts in the superfamily Paratanoidea. Tantulocaridan samples included newly settled tantulus larvae, early stages of trunk development and developing males; parasites were found attached to anterior appendages (antennules and pereopods) or bodies of hosts. This material likely represents a new species but the condition and number of available specimens precludes a formal description. The putative new species is most similar to <i>Microdajus aporosus</i> Grygier and Sieg, 1988 and <i>Microdajus tchesunovi</i> Kolbasov and Savchenko, 2010 in having an endopodal seta on each of the sixth thoracopods (lacking in other species). <i>Microdajus tchesunovi</i> is the only described species of <i>Microdajus</i> with males bearing unsegmented sixth thoracopod protopods; this character is also found on the present specimens. Males of the newly reported tantulocaridan can be distinguished from those of <i>M</i>. <i>tchesunovi</i> based on protopod 1-5 morphology and setation of the pits on the cephalothorax (fewer setae in males of the western Atlantic specimens compared to <i>M</i>. <i>tchesunovi</i>). This is the first species of <i>Microdajus</i> reported from the western Atlantic and the first tantulocaridan known from the Gulf of Mexico or northwestern Atlantic. ","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"First record of a tantulocaridan, <i>Microdajus</i> sp. 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