{"refrec":{"BRefID":247719,"RR":"<b>Lowry, J.K.; Berents, P.B.</b> (1996). The <i>Ericthonius</i> group, a new perpective on an old problem (Crustacea: Amphipoda: Corophioidea). <i>Rec. Aust. Mus. 48(1)</i>: 75-109. <a href=\"http://dx.doi.org/10.3853/j.0067-1975.48.1996.281\" target=\"_blank\">http://dx.doi.org/10.3853/j.0067-1975.48.1996.281</a>","BEntID":239420,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Rec. Aust. Mus. 48(1)</i>: 75-109. <a href=\"http://dx.doi.org/10.3853/j.0067-1975.48.1996.281\" target=\"_blank\">http://dx.doi.org/10.3853/j.0067-1975.48.1996.281</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Lowry, J.K.; Berents, P.B.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Lowry, J.K.; Berents, P.B.","Englishabstract":"The <em>Ericthonius</em> group is established based on corophioid taxa with dorsal spines on the telson. Within this group there are three non-aligned genera (<em>Ericthonius, Pseudericthonius</em> and <em>Pseudischyrocerus</em>) and two robust clades known as the <em>Cerapus</em> clade and the <em>Siphonoecetes</em> clade. The Cerapus clade (five genera) is defined by four synapomorphic characters: a posteriorly directed dactylus on peraeopod 7; accessory spines on the dactyli of peraeopods 5-7; uniramous uropod 2; and rows of recurved spines on the telson. The <em>Siphonoecetes</em> clade (10 genera, Siphonoecetinae of Just, 1983) is defined by: five synapomorphic characters: a short, slender first antenna; a reduced mandibular palp; a simple or weakly subchelate male gnathopod 2; an anteriorly inserted carpus on peraeopods 5-6; and no recurved distal spines on the rami of uropod 3. The relationships between these taxa are discussed and the <em>Cerapus</em> clade and the <em>Siphonoecetes</em> clade are considered to be sister taxa. Although the <em>Ericthonius</em> group is an obvious member of the Corophioidea there is currently no evidence to place it in an existing family. All genera in the <em>Cerapus</em> clade (<em>Bathypoma</em> n.gen., Cerapus Say, 1817, <em>Notopoma</em> n.gen., <em>Runanga</em> J.L. Barnard, 1961, and <em>Paracerapus</em> Budnikova, 1989) are diagnosed and a number of species are placed in new combinations. The two new genera, <em>Bathypoma</em> and <em>Notopoma</em>, are both characterised by a medially expanded peduncle on antenna 1 which functions as an operculum and distinguishes them from all other members of the group. <em>Bathypoma enigma</em> n.sp. is the only member of the <em>Cerapus</em> clade with a subchelate gnathopod 2 in the male. <em>Notopoma</em> contains <em>N. africana</em> n.sp., <em>N. crassicornis</em> (Bate, 1857), <em>N. fallohidea</em> (Lowry, 1981), <em>N. harfoota</em> (Lowry, 1981), <em>N. lutkini</em> (Tzvetkova, 1990), <em>N. moorea</em> n.sp., <em>N. opposita</em> (K.H. Barnard, 1931), <em>N. sismithi</em> (Stebbing, 1888), <em>N. stoddartae</em> n.sp. and <em>N. stoora</em> (Lowry, 1981). A generic key to the <i>Ericthonius</i> group is included.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The <i>Ericthonius</i> group, a new perpective on an old problem (Crustacea: Amphipoda: Corophioidea)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-15 01:32:43.362168","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1996,"MonPub":null,"DateUpdate":"2015-06-12","DateCreate":"2015-06-12","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1,"DOI":"10.3853/j.0067-1975.48.1996.281"},"refs":null,"anarec":{"AnaID":247719,"PubliDate":1996,"Pagination":"75-109","XtraPublOfAnaID":null,"ISBN":null,"Volume":"48","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43858,"SerRR":"Records of the Australian Museum. 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