English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The morphology of the prostomium is suggested as a taxonomic character in Nephtyidae. In the present study, the prostomium morphology of eight species of Nephtys (N. australiensis, N. gravieri, N. semiverrucosa, N. inomata, N. mesobranchia, N. oligobranchia, N. po(ybranchia and N. sukumoensis) which show replacement of barred (laddered) setae was examined. Characteristics of the shape of the antennae and their position were used to divide these species into two groups, one consisting of the first three species and the other, the remaining five species. The two groups are suggested to have different phylogenetic origins. The present study also suggested that Aglaophamus neotenus should be placed in Nephtys as Neph~ys neotena new combination. For more than a century, the taxonomy of nephtyid polychaetes has been based mainly on the morphology of the parapodia and the proboscis (Hartman, 1950). The morphology of the prostomium has been said to have doubtful taxonomic value (Day, 1967) and its importance does not seem to have been recognized among taxonomists. Ohwada (1983) found that prostomium morphology did not change during the growth of juveniles after first appearance of the prostomium at metamorphosis, and demonstrated the importance of prostomium morphology for the identification of juvenile nephtyids. He further suggested that the inclusion of prostomium morphology in the criteria for the identification of adult nephtyids would contribute to more accurate identification and, therefore, facilitate the solution of some taxonomic problems in Nephtyidae. In Nephtys, there is one easily distinguishable group of species in which barred (laddered) setae are replaced by non-barred setae in the posterior part of the body. Eight species have been reported so far in this group: Nephtys australiensis Fauchald, 1965; N. inornata Rainer et Hutchings, 1977; N. gravieri Augener, 1913; N. mesobranchia Rainer et Hutchings, 1977; N. oligobranchia Southern, 1921 ; N. po!ybranchia Southern, 1921; N. semiverrucosa Rainer et Hutchings, 1977 and N. sukumoensis Publ. Seto Mar. Biol. Lab., 30 (1/3), 55-60, 1985. (Article 2)

publications of the seto marine biological laboratory

Prostomium Morphology as a Criterion for the Identification of Nephtyid Polychaetes (Annelida : Phyllodocida), with Reference to the Taxonomic Status of Aglaophamus neotenus