摘要:

The harpacticoid copepod subfamily Thompsonulinae Lang, 1944, formerly recognized as belonging to the family Tachidiidae (Lang, 1948) is raised to family rank and redefined to include only the generaThompsonulaT. Scott andCaribbulagen. nov.Thompsonula hyaenae(I. C. Thompson) andT. curticauda(Wilson) are redescribed and refigured. Re‐examination of the original material showed that Wilson'sRathbunula agilisis synonymous withT. curticaudaand not withT. hyaenae, as suggested by Lang (1948). It is now clear that the two species ofThompsonulahave distinct distributions, T.curticaudabeing confined to the North American continent andT. hyaenaeto western Europe and the Mediterranean. The genusCaribbulais established to accommodate the type species, T.hyaenae elongata(Gee) andC. fleegerisp. nov. which are described and figured. The genusCaribbulais distinguished fromThompsonua, primarily by the unique sexual dimorphism on the exopod of P4 and, at present, is known only from the eastern seaboard of the United States and Gulf of Mexico. The generaDanielssenia, Psammis, Paradanielssenia, MicropsammisandLeptotachidiaare tentatively assigned to the family Paranannopidae Po

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1990.tb01221.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

A new family is proposed forHatnondia superbagen. et sp. nov., a shield‐shaped harpacticoid collected from washings of sponges from Port Phillip, Australia. It is concluded that the closest relatives of the Hamondiidae fam. nov. currently belong to the heterogeneous thalestrid genusRhynchothalestrisSars, 1905 and for that reason the latter is revised.Rhynchothalestris rufocincta(Brady, 1880) is redescribed and designated as type species for Ambunguipes gen. nov., comprising also the Indo‐PacificA. similis(A. Scott, 1909) which is re‐instated.Ambunguipes vanhoeffeni(Brady, 1910) is ranked asspecies inquirendawithin the genus. Because of its body ornamentationR. cornutaGeddes, 1969 is transferred to Lucayostratiotes gen. nov. The Ambunguipedidae fam. nov., accommodatingAmbunguipesandLucayostratiotesare regarded as the sister‐group of the Hamondiidae on the basis of the loss of the seta on the first antennular segment, the presence of bifid spinules on the antennary exopod, the presence of a modified seta on the maxillary precoxal endite, the sexual dimorphism of leg 3, the detailed structure of the female genital complex, and the asymmetry of the male P6. The diagnosis of the subfamily Rhynchothalestrinae, encompassing the generaRhynchothalestrisandPeltthestrisMonard, 1924 is amended, and a redescription of the former's type speciesR. helgolandica(Claus, 1863) is presented. The genus also containsR. tenuisChislenko, 1971 andR. campbelliensisLang, 1934 grad. nov. which is elevated to full species rank. The inadequately describedR. tenuicornis(Brady, 1910) is ranked asspecies inquirenda.The monotypic genusPeltthestrisis regarded as a valid genus. It is suggested that the Rhynchothalestrinae represent an early offshoot in the evolution of the Thalestridae and that the Thalestrinae and the Dactylopusiinae are more closely related to each other than to any other subfamily.Rhynchothalestris agigensisSerban, 1959 has no close relationship with either the Rhynchothalestrinae or the Ambunguipedidae and is tentatively consideredincertae sediswithin the Dactylopusiinae. The discovery of/,superbaand the redescription ofA. rufocinctahave raised the maximum number of antennular segments in male harpacticoids to 14. The terms ‘epicopulatory bulb’ and ‘epicopulatory plate’ are coined for peculiar structures of the female genital complex. The development of'setoid elements' versus addition of novel setae is br

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1990.tb01222.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1990.tb01221a.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY