Myriotrochus (Oligotrochus) meteorensis spec. nov., a new myrio-trochid holothurian from the deep-sea off NW Africa (Echinodermata: Holothuroidea: Myriotrochidae)

Zootaxa ◽  
2005 ◽  
Vol 1078 (1) ◽  
pp. 33
Author(s):  
JENS MICHAEL BOHN
Keyword(s):  
New Species ◽  
West Africa ◽  
Atlantic Ocean ◽  
Deep Sea ◽  
First Record ◽  
Ne Atlantic ◽  
North West ◽  
Ne Atlantic Ocean

A new myriotrochid holothurian, Myriotrochus (Oligotrochus) meteorensis spec. nov., has been discovered in a deep-sea sample taken during an expedition with FS 'Meteor' (M 36) off north-west Africa, together with specimens of Molpadia musculus Risso, 1826, Hedingia albicans (Théel, 1886) and Protankyra cf. brychia (Verrill, 1885). The new species is similar to M. (O.) vitreus (M. Sars, 1866) and M. (O.) clarki Gage and Billett, 1986; it is thoroughly described and detailed measurements of wheel parameters are presented. This is the first record of a myriotrochid holothurian for the NE Atlantic Ocean south of 40°N.

scholarly journals Anobothrus amourouxisp. nov., a new species of Ampharetidae (Polychaeta) from the Capbreton Canyon (Bay of Biscay, NE Atlantic Ocean)

2015 ◽  
Vol 95 (5) ◽  
pp. 961-969 ◽  
Author(s):  
Paulo Bonifácio ◽  
Nicolas Lavesque ◽  
Guy Bachelet ◽  
Julio Parapar
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Lateral View ◽  
Identification Key ◽  
Bay Of Biscay ◽  
Frontal View ◽  
Ne Atlantic ◽  
Ne Atlantic Ocean ◽  
A New Species

A new species of Ampharetidae,Anobothrus amourouxisp. nov., has been identified from bathyal depths of the Capbreton Canyon, Bay of Biscay (NE Atlantic Ocean). This new species is characterized by inner branchiae with transversal ciliated ridges, notochaetae from modified eighth thoracic unciniger with hirsute tips, uncini from thoracic unciniger with 6–7 teeth in lateral view arranged in two vertical rows in frontal view, fused segments II + III with paleae from SII and reduced notopodia without chaetae from SIII. An identification key for all hitherto described species of the genusAnobothrusis provided.

scholarly journals The Interactive Role of Hydrocarbon Seeps, Hydrothermal Vents and Intermediate Antarctic/Mediterranean Water Masses on the Distribution of Some Vulnerable Deep-Sea Habitats in Mid Latitude NE Atlantic Ocean

Oceans ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 351-385
Author(s):  
Luis Somoza ◽  
José L. Rueda ◽  
Olga Sánchez-Guillamón ◽  
Teresa Medialdea ◽  
Blanca Rincón-Tomás ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Deep Sea ◽  
Hydrothermal Vents ◽  
Water Masses ◽  
Gulf Of Cadiz ◽  
Ne Atlantic ◽  
Hydrocarbon Seeps ◽  
Gulf Of Cádiz ◽  
Ne Atlantic Ocean ◽  
Deep Sea Corals

In this work, we integrate five case studies harboring vulnerable deep-sea benthic habitats in different geological settings from mid latitude NE Atlantic Ocean (24–42° N). Data and images of specific deep-sea habitats were acquired with Remoted Operated Vehicle (ROV) sensors (temperature, salinity, potential density, O2, CO2, and CH4). Besides documenting some key vulnerable deep-sea habitats, this study shows that the distribution of some deep-sea coral aggregations (including scleractinians, gorgonians, and antipatharians), deep-sea sponge aggregations and other deep-sea habitats are influenced by water masses’ properties. Our data support that the distribution of scleractinian reefs and aggregations of other deep-sea corals, from subtropical to north Atlantic could be dependent of the latitudinal extents of the Antarctic Intermediate Waters (AAIW) and the Mediterranean Outflow Waters (MOW). Otherwise, the distribution of some vulnerable deep-sea habitats is influenced, at the local scale, by active hydrocarbon seeps (Gulf of Cádiz) and hydrothermal vents (El Hierro, Canary Island). The co-occurrence of deep-sea corals and chemosynthesis-based communities has been identified in methane seeps of the Gulf of Cádiz. Extensive beds of living deep-sea mussels (Bathymodiolus mauritanicus) and other chemosymbiotic bivalves occur closely to deep-sea coral aggregations (e.g., gorgonians, black corals) that colonize methane-derived authigenic carbonates.

scholarly journals Postlarval development in shallow and deep-sea ophiuroids (Echinodermata: Ophiuroidea) of the NE Atlantic Ocean

1998 ◽  
Vol 124 (3) ◽  
pp. 267-300 ◽  
Author(s):  
PAULO Y. G. SUMIDA ◽  
PAUL A. TYLER ◽  
JOHN D. GAGE ◽  
ARNE NØRREVANG
Keyword(s):  
Atlantic Ocean ◽  
Deep Sea ◽  
Ne Atlantic ◽  
Ne Atlantic Ocean

New species of Tanaella Norman and Stebbing, 1886 (Crustacea: Tanaidacea: Tanaellidae) from the deep-sea off the Antarctic and the Angola Basin, with a key to the genus

Zootaxa ◽  
2004 ◽  
Vol 459 (1) ◽  
pp. 1 ◽  
Author(s):  
JÜRGEN GUERRERO-KOMMRITZ ◽  
MAGDALENA B½AÚEWICZ-PASZKOWYCZ
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Deep Sea ◽  
First Record ◽  
The Antarctic ◽  
Southern Atlantic Ocean

Three new deep-sea species in the genus Tanaella are described: two from the Antarctic (T. eltaninae sp. nov., T. kimi sp. nov.) and one from the Angola Basin (T. profunda sp. nov.). This is the first record of Tanaella in the deep-sea of the Antarctic and the southern Atlantic Ocean. A key to the 13 known species of the genus is provided.

scholarly journals Lumbrineridae (Polychaeta) from the Portuguese continental shelf (NE Atlantic) with the description of four new species

Zootaxa ◽  
2012 ◽  
Vol 3416 (1) ◽  
pp. 1 ◽  
Author(s):  
ROBERTO MARTINS ◽  
LUIS F. CARRERA-PARRA ◽  
VICTOR QUINTINO ◽  
ANA MARIA RODRIGUES
Keyword(s):  
Multivariate Analysis ◽  
New Species ◽  
Atlantic Ocean ◽  
Continental Shelf ◽  
Morphological Characteristics ◽  
First Record ◽  
The Other ◽  
Ne Atlantic ◽  
The Family ◽  
Water Depths

The present study reports four new species of the Family Lumbrineridae Schmarda, 1861, three in the genus Lumbrinerisde Blainville, 1828 and one in the genus Gallardoneris Carrera-Parra, 2006. The new species were found on the Portu-guese continental shelf at water depths ranging from 11 to 190 m. Gallardoneris iberica sp. nov. is the first record of thisgenus in the Atlantic Ocean and can be distinguished from the other two known Gallardoneris species by the distributionof the composite and the simple multidentate hooded hooks and the shape of the parapodial lobes. Lumbrineris luciliaesp. nov. has an arcuate, unidentate MIII and MIV unidentate with well-developed plate, digitiform wide basallypostchaetal lobes in anterior parapodia, composite multidentate hooded hooks with short blade. Furthermore, L. luciliaesp. nov. has simple multidentate hooded hooks of two sizes, preacicular hook twice as big as postacicular hook, and dis-tally curved aciculae in median and posterior parapodia. Both Lumbrineris lusitanica sp. nov. and Lumbrineris pinastersp. nov. are characterized by having MIII unidentate followed by a knob. However, L. lusitanica sp. nov. has digitiformwide basally postchaetal lobes in the anterior parapodia, composite multidentate hooded hooks with short blade and simplemultidentate hooded hooks with short hood; while L. pinaster sp. nov. has auricular postchaetal lobes in the anteriorparapodia, composite multidentate hooded hooks with long blade, and simple multidentate hooded hooks with short andlong hood. A multivariate analysis was performed upon morphological characteristics and validates the separation of the four new species. A taxonomic key to lumbrinerid species from Iberian waters is included.

scholarly journals The Mollusca of Galicia Bank (NE Atlantic Ocean)

2021 ◽  
Vol 785 ◽  
Author(s):  
Serge Gofas ◽  
Ángel A. Luque ◽  
Joan Daniel Oliver ◽  
José Templado ◽  
Alberto Serrano
Keyword(s):  
Atlantic Ocean ◽  
Species Composition ◽  
Iberian Peninsula ◽  
First Record ◽  
Ne Atlantic ◽  
Ne Atlantic Ocean ◽  
Alternative Species

An illustrated checklist of the Mollusca of Galicia Bank, a large and deep seamount off the NW Iberian Peninsula, is provided. The studied material was collected in 8 samples of Seamount 1 cruise (1987), 7 samples of ECOMARG 0709 (2009) and 36 samples of BANGAL 0711 (2011), between 615 and 1768 m. A total of 212 species are known to occur at the Galicia Bank (1 Monoplacophora, 7 Solenogastres, 3 Polyplacophora, 132 Gastropoda, 54 Bivalvia, 6 Scaphopoda, and 9 Cephalopoda), 21 of which from previous studies only. Four species are described as new, 34 species are first record in Spanish waters and another 20 species first record for the Northern Spanish waters. Over 7500 specimens, representing 104 species, were collected alive, and 87 species were represented by empty shells only. Only 53 species were detected in both Seamount 1 and BANGAL 0711; most of the species are rare and more species can be expected if exploration is continued. There is a marked difference in species composition between the summit platform (615‒1000 m) and the deeper part below 1500 m, with some genera (e.g., Colus and Limopsis) represented by alternative species. Endemism, if any, is very low and most of the species are widespread.

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