A new genus and four new species of Cylindropsyllidae Sars, 1909 (Copepoda: Harpacticoida) from the Great Meteor Seamount plateau (North-East Atlantic Ocean), with remarks on the phylogeny and the geographical distribution of the taxon

2019 ◽  
Vol 49 (5) ◽  
pp. 2223-2266
Author(s):  
Karin Richter
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Geographical Distribution ◽  
New Genus ◽  
East Atlantic ◽  
North East ◽  
Great Meteor Seamount

scholarly journals A newOphryotrochaspecies (Polychaeta: Dorvilleidae) from circalittoral seabeds of the Cantabrian Sea (north-east Atlantic Ocean)

2013 ◽  
Vol 94 (1) ◽  
pp. 115-119 ◽  
Author(s):  
Jorge Núñez ◽  
Rodrigo Riera ◽  
Yolanda Maggio
Keyword(s):  
New Species ◽  
Body Size ◽  
Atlantic Ocean ◽  
East Atlantic ◽  
Size And Shape ◽  
North East ◽  
P Type

One new dorvilleid species belonging to the genusOphryotrochaClaparède & Mecznikow, 1869 is described. The studied material was collected in circalittoral seabeds (70–100 m depth) in the Cantabrian Sea (north-east Atlantic Ocean). The new speciesOphryotrocha cantabricais characterized by having well-developed antennae and palps, parapodia with long dorsal cirrus, sub-triangular acicular lobes and inferior chaetal lobe well-developed, as well as the presence of P-type maxillae and bifid mandibles slightly tagged. The most closely relatedOphryotrochaspecies areO. longidentataJosefson, 1975 andO. lobiferaOug, 1978; however, both species have biarticulated palps. Other differences withO. cantabricasp. nov. are: body size and shape, parapodia morphology and number of setae, as well as the shape of mandibles and maxillae.

scholarly journals New and little known species of Lepechinella (Crustacea, Amphipoda, Lepechinellidae) and an allied new genus Lepesubchela from the North Atlantic

2015 ◽  
Author(s):  
Per-Otto Johansen ◽  
Wim Vader
Keyword(s):  
New Species ◽  
North Atlantic ◽  
Related Species ◽  
New Genus ◽  
Related Genus ◽  
East Atlantic ◽  
North East ◽  
The North ◽  
The North Atlantic

New species of Lepechinella, L. norvegica sp. nov. and L. victoriae sp. nov., from the North East Atlantic are described together with the new, closely related genus and species Lepesubchela christinae gen. et sp. nov. Lepechinella arctica Schellenberg, 1926 from north of Spitsbergen and Lepechinella schellenbergi Stephensen, 1944 from Greenland are redescribed. A key to the species of Atlantic and Arctic Lepechinella is provided. Descriptions of taxonomic characters from related species in the Atlantic and Arctic are discussed.

Haplomesus longiramus sp. nov. (Crustacea: Isopoda: Asellota), a new ischnomesid species from the Bay of Biscay, North East Atlantic Ocean

Zootaxa ◽  
2006 ◽  
Vol 1300 (1) ◽  
pp. 51 ◽  
Author(s):  
FIONA A. KAVANAGH ◽  
JEAN-CLAUDE SORBE
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Bay Of Biscay ◽  
East Atlantic ◽  
Male And Female ◽  
Maximum Abundance ◽  
North East ◽  
A New Species

A new species of Ischnomesidae (Crustacea: Isopoda: Asellota), Haplomesus longiramus sp. nov. is described from the Bay of Biscay. This species is unusual due to the presence of long, thin anterolateral projections supporting the antennae and an elongate pereonite 4. These features are also seen in Haplomesus biscayensis Chardy, 1975, and the two species closely resemble each other. The presence of a laterally directed spine on pereonite 5 of the male of Haplomesus longiramus sp. nov. along with the elongate uropods of both male and female easily differentiates this species from H. biscayensis. Within its known distributional area, this new Haplomesus species inhabits bathyal muddy bottoms from 500–1009 m, with a maximum abundance of 29 individuals per 100 m 2 recorded at approximately 700 m.

A new species ofMarionia(Opisthobranchia: Nudibranchia: Tritoniidae) from the tropical South Atlantic Ocean

2013 ◽  
Vol 93 (6) ◽  
pp. 1617-1624 ◽  
Author(s):  
Felipe De Vasconcelos Silva ◽  
Carlos Augusto Oliveira de Meirelles ◽  
Helena Matthews-Cascon
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
New Genus ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Genital Opening ◽  
North East ◽  
The Family ◽  
The Right ◽  
A New Species

A new species of the family Tritoniidae is described for the tropical South Atlantic Ocean. The animal was found off north-east Brazil.Marionia limceanasp. nov. is up to 31 mm long, with a sturdy white body, of which the notum is covered with two rows of red polygons running from the rhinophores to the tail; notum with tubers; bi-lobed veil with 16 velar papillae; retractable white rhinophores; 11–14 pairs of branchial plumes; the anus is located below the 4th gill on the right side, and the genital opening is under the 3rd gill. Internally,M. limceanasp. nov. is distinguished from other tritoniids by jaws with three or four rows of denticles on the inner lips, a belt of 18 stomach plates; and the radular formula 26 × 26–32.1.1.1.26–32 teeth. The animal was found feeding on octocorals of a species of the new genusStragulum, and is the first reported nudibranch to feed on this genus.

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