Four new species of Sabatieria Rouville, 1903 (Nematoda, Comesomatidae) from the Continental Slope of Atlantic Southeast

Abstract

Sabatieria is the most abundant genus along the Campos Basin, Rio de Janeiro (Brazil). Four new species of Sabatieria (Nematoda-Comesomatidae) from the Continental Slope of Atlantic Southeast are described. Sabatieria spiculata sp.nov. is characterized by the size of spicule and the presence of dorsal tooth ; S. paraspiculata sp. nov. by tail shape and the maximum diameter; S. bitumen sp. nov. by spicule shape with an arrow-like distal part and the S. subrotundicauda sp.nov. by a round tail and reflected ovary.

Spirodesma magdae nov. gen. nov. sp. (Nematoda: Desmodoridae) from the Brazilian deep sea (Campos Basin, Rio de Janeiro, Brazil)

“…Details about the material and methods (field and laboratory works) and about the study area are shown in Botelho et al (2007).…”

Four new species of Syringolaimus De Man, 1888 (Nematoda: Ironidae) from the Southeast Atlantic (Brazil), with redefinition of valid species and the proposal of a new key

“…The Campos Basin is located on the continental shelf and slope of Rio de Janeiro, Brazil, between 21 ○ 30' N and 23 o 30' S. The study area, field methodology and laboratory methods were described by Botelho et al (2007). The holotypes and allotypes were deposited at the National Museum of Rio de Janeiro (MNRJ), Brazil.…”

First record of the taxonEchinopsyllus(Copepoda, Harpacticoida, Ancorabolidae) from the deep sea of Campos Basin, Brazil, with the description of three new species and their contribution to phylogenetic analysis

“…Samples from the continental slope of Campos Basin off south‐eastern Brazil recently provided important results that increased our knowledge of the biodiversity of meiofauna along the Brazilian coast, which is currently the object of intensive taxonomic and faunistic research (e.g. Botelho et al. , 2007).…”

“…In this area, nematodes are the most abundant meiofaunal organisms, followed by harpacticoid copepods (Netto, Gallucci & Fonseca, 2005; Botelho et al. , 2007).…”