Articulatia, a new genus of Terebellinae (Polychaeta: Terebellidae) living in Brazilian corals

Abstract

A new genus of terebellid polychaetes is described, from material collected from living colonies of a stony coral (Mussismilia hispida) in the State of São Paulo, south-eastern Brazil. Articulatia is characterized by possessing notopodia from segment 5, neuropodia from segment 5 or 6 with double rows of uncini from segment 7 until near pygidium. Up to segment ten, notopodia with bilimbate capillaries; from segment 11 onwards two types of notochaetae are present, articulated chaetae, due to a deep cut at the sulcus of the third tooth, as well as capillary chaetae, both types with serrated blades. The presence of deep-cut chaetae is unique among all previously described terebellomorph polychaetes. This new genus is compared with other terebelline genera, and the phylogenetic analysis previously performed for the group is rerun, in order to determine the position of Articulatia within the subfamily. The type species of the new genus, A. aberrans, is also new to science and herein described.

Distribution patterns of Terebellidae (Annelida: Polychaeta): an application of Parsimony Analysis of Endemicity (PAE)

“…Data on the distribution of species were gathered from monographs, reviews and checklists, since it would be impossible to identify or check all relevant material (Malmgren, 1866;Hessle, 1917;Fauvel, 1927;Monro, 1936;Day, 1955Day, , 1967Hartman, 1955Hartman, , 1965Hartman, , 1966Imajima and Hartman, 1964;HartmannSchröder, 1965;Knox and Cameron, 1971;Kritzler, 1971;Hutchings, 1977Hutchings, , 1990Hutchings, , 1993Hutchings, , 1997aHutchings and Glasby 1986a, b, c, d, 1987, 1995Banse, 1980;Kingston and Mackie, 1980;Williams, 1984;Imajima and Williams, 1985;Holthe, 1986a, b;Blankensteyn and Lana, 1987;Solis-Weiss et al, 1991;Hutchings and Smith, 1997;Hutchings and Peart, 2000;Nogueira and Amaral, 2001;Nogueira et al, 2003;Garraffoni and Lana, 2003).…”

A new species of <i>Paraeupolymnia</i> Young and Kritzler, 1986 (Polychaeta, Terebellidae) from Brazil

“…sp., a very similar morphology of ventral shields. Hutchings andGlasby (1986), McHugh (1995), and Nogueira et al (2003), among several others, pointed out the fact that a comprehensive phylogenetic survey on the genera of Terebellinae would most probably synonymise several genera, and this study is currently being undertaken (Nogueira and Hutchings, in prep.). Intuitively, before the phylogenetic analysis is actually concluded, it seems very likely that Paraeupolymnia forms a monophyletic clade within Eupolymnia, with two autapomorphies: the secondary loss of the third pair of branchiae and the morphology of abdominal uncini.…”

Integridade biótica dos ecossistemas na região do Arquipélago dos Alcatrazes, São Sebastião - SP

“…•Doze espécies de poliquetas (Nogueira & Hove, 2000;Nogueira & Rizzo, 2001;Nogueira et al, 2003Nogueira et al, , 2010;…”