title: Laubieriopsis petersenae n. sp. and L. cf. cabiochi (Amoureux, 1982) (Polychaeta: Fauveliopsidae) from dredge disposal sites off Honolulu, Hawaii.
abstract: Fauveliopsid polychaetes have been collected at dredge disposal sites off Honolulu from 397-507 m depth. We report and describe the first Pacific record of Laubieriopsis cf. cabiochi (Amoureux, 1982), originally described from the North Atlantic. A new species, Laubieriopsis petersenae, n. sp. is described as being the species in the genus with the lowest number of body segments (15). Other distinctive features are the presence of bidentate aciculars on thoracic chaetigers, and unpaired genital papilla present on the right side of chaetiger 6/7. The new species is most similar to the L. brevis complex from the Atlantic and L. hartmanae and L. brevis japonica from the Pacific Ocean, but differs on the combination of the characters cited above. We provide an emended diagnosis for this genus to include the ultrastructure of the acicular with rows of spines, and a key to all described species.
authors.affiliation: Department of Biology, University of Hawaii at Manoa, 2538 McCarthy Mall, Honolulu, Hawaii 96822, USA Water Resources Research Center, University of Hawaii at Manoa, 2540 Dole Street, Honolulu, Hawaii 96822, USA; Email: unknown.
authors.forename: Wagner F
authors.initials: WF
authors.lastname: Magalhães
authors.affiliation: Department of Biology, University of Hawaii at Manoa, 2538 McCarthy Mall, Honolulu, Hawaii 96822, USA Water Resources Research Center, University of Hawaii at Manoa, 2540 Dole Street, Honolulu, Hawaii 96822, USA; Email: jbrock@hawaii.edu.
authors.forename: Julie H
authors.initials: JH
authors.lastname: Bailey-Brock
authors.affiliation: Universidade do Estado do Rio de Janeiro (UERJ), IBRAG, Departamento de Zoologia, Rua São Francisco Xavier, 524, Maracanã, 20.550-900, Rio de Janeiro, Brazil; Email: unknown.
authors.forename: Alexandra E
authors.initials: AE
authors.lastname: Rizzo
mesh_terms: D000818:Animals; D017753:Ecosystem; D005260:Female; D006254:Hawaii; D008855:Microscopy, Electron, Scanning; D011077:Polychaeta / Q000033:anatomy & histology* / Q000145:classification / Q000648:ultrastructure; D012037:Refuse Disposal