scholarly journals First record of Cnidocodon leopoldi Bouillon, 1978 (Cnidaria: Anthoathecata) in the Atlantic Ocean

2021 ◽  
Vol 61 ◽  
pp. e20216197
Author(s):  
Everton Giachini Tosetto ◽  
Arnaud Bertrand ◽  
Sigrid Neumann-Leitão ◽  
Miodeli Nogueira-Jr.
Keyword(s):  
Atlantic Ocean ◽  
First Record ◽  
Brazilian Coast

Specimens of the hydromedusa Cnidocodon leopoldi Bouillon, 1978 were collected in waters off the northeast Brazilian coast between 7.4°S, 34.3°W and 8.7°S, 34.8°W. The genus can be distinguished from other anthomedusae by the presence of four marginal perradial bulbs having an adaxial nematocyst cushion and branched capitate tentacles, an umbrella with scattered nematocysts, and gonads around a cylindrical manubrium shorter than the umbrella. Specimens were assigned to C. leopoldi due the tentacles with 4-5 branches and the absence of ocelli on tentacle bulbs differing from the congeneric Cnidocodon ocellata Huang, Xu, Lin & Qiu, 2008. This study represents the first record of the species in the Atlantic Ocean.

scholarly journals New records of Tindariopsis (Pelecypoda, Protobranchia) from Brazil - Campos Basin (off Rio de Janeiro)

2011 ◽  
Vol 11 (3) ◽  
pp. 423-429
Author(s):  
Natalia Pereira Benaim ◽  
Ricardo Silva Absalão
Keyword(s):  
Atlantic Ocean ◽  
Continental Slope ◽  
Type Species ◽  
New Records ◽  
First Record ◽  
Brazilian Coast ◽  
Surface Sculpture ◽  
Campos Basin ◽  
The Caribbean

As a part of the Environmental Characterization of the Campos Basin project, we obtained samples from the continental slope benthos. As a consequence, specimens of Tindariopsis aeolata (Dall, 1889) and Tindariopsis agathida (Dall, 1889) were found. These species show prodissoconch surface sculpture patterns that were never seen for species of Tindariopsis. The presence of this kind of sculpture in the type species of the genus, T. agathida, adds diagnostic characters to the genus. T. agathida and T. aeolata are typical from the Caribbean Realm (Guyana and Tobago). This is the first record of T. aeolata in the southernmost area of the Atlantic Ocean, and also the shallowest record (1000 m) for this species. With this finding of specimens from the Bacia de Campos, the distribution of T. agathida can now be extended in the Brazilian coast from 7º to 22º S.

Deep seaYoldiella(Pelecypoda: Protobranchia: Yoldiidae) from Campos Basin, Rio de Janeiro, Brazil

2010 ◽  
Vol 91 (2) ◽  
pp. 513-529 ◽  
Author(s):  
Natalia Pereira Benaim ◽  
Ricardo Silva Absalão
Keyword(s):  
Atlantic Ocean ◽  
Deep Sea ◽  
Rio De Janeiro ◽  
First Record ◽  
Brazilian Coast ◽  
Southern Brazil ◽  
Western Atlantic ◽  
Lack Of Information ◽  
Campos Basin ◽  
Unknown Species

Despite the increasing number of reports on the deep-sea molluscs from the south-western Atlantic, we know very little about the protobranchs. The lack of information on the protobranch Pelecypoda off southern Brazil is reflected in the genusYoldiella. This contribution is part of an effort to increase the knowledge about this group off the Brazilian coast. Eight species ofYoldiellaare recognized here. ForYoldiella biguttata, previously reported from Brazil, the known distribution is extended southwards to the Campos Basin. ForYoldiella similisthis is the first record in the western Atlantic Ocean. ForYoldiella extensaandYoldiellaaff.jeffreysithis is the first record for Brazil. Four previously unknown species are described,Yoldiella lapernoisp. nov.,Yoldiella paranapuaensissp. nov.,Yoldiella arariboiasp. nov. andYoldiella curupirasp. nov. Considering only conchological features for the Atlantic species we could propose some clusters of species ofYoldiella.

scholarly journals First record of Flabellina dana Millen and Hamann, 2006 (Mollusca: Nudibranchia) in the South Atlantic Ocean

Check List ◽  
2011 ◽  
Vol 7 (6) ◽  
pp. 880 ◽  
Author(s):  
Licia Sales ◽  
Marlon Delgado ◽  
Vinicius Queiroz ◽  
Vinicius Padula ◽  
Cláudio L. S. Sampaio ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Geographic Distribution ◽  
Caribbean Sea ◽  
First Record ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Brazilian Coast ◽  
The South ◽  
The Bahamas ◽  
The Caribbean

The nudibranch Flabellina dana Millen and Hamann, 2006 is reported from two localities in the northeastern Brazilian coast. These are the first records of this species, previously recorded from localities in the Bahamas and the Caribbean Sea, in South Atlantic Ocean, extending its known geographic distribution more than 3500 km southward.

scholarly journals First record of the genus Eumunida Smith, 1883 (Crustacea, Decapoda, Eumunididae) from the southwestern Atlantic, with the description of a new species

2019 ◽  
Vol 59 ◽  
pp. e20195939
Author(s):  
Marcos Tavares ◽  
Daniel Lima
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
First Record ◽  
Sensu Stricto ◽  
Brazilian Coast ◽  
Southwestern Atlantic ◽  
A New Species ◽  
Southeastern Atlantic

Eumunida picta Smith, 1883, was considered for over a century an amphi-Atlantic species and the only representative of the genus in the Atlantic Ocean, until being split into three species: E. picta sensu stricto (from the northwestern Atlantic), E. bella de Saint Laurent & MacPherson, 1990 and E. squamifera de Saint Laurent & MacPherson, 1990 (from the northeastern and southeastern Atlantic, respectively). Eumunida is now expanded to include a new species, E. notialis, from off the Brazilian coast. Hence, this is the first record of Eumunida and Eumunididae from the southwestern Atlantic. The new species differs from all its Atlantic counterparts in having (1) four hepatic spines; (2) two carapace inframarginal spines; (3) the distal end of the antennal acicle nearly reaching to the articulation between fourth and fifth antennal segments; and (4) the anterolateral spine of the second pleonal tergite obsolete.

First record of a rare deep-sea copepod, Gaussia intermedia Defaye, 1998 (Calanoida, Metridinidae), from the Atlantic Ocean

Crustaceana ◽  
2018 ◽  
Vol 91 (4) ◽  
pp. 501-508
Author(s):  
F. A. Alves-Júnior ◽  
A. Bertrand ◽  
P. A. M. C. Melo ◽  
É. P. Correia ◽  
L. G. P. Figueiredo ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Vertical Migration ◽  
Deep Sea ◽  
High Speed ◽  
Mesh Size ◽  
First Record ◽  
Open Ocean ◽  
Global Distribution ◽  
Brazilian Coast ◽  
First Occurrence

Copepod crustaceans of the genusGaussiainhabit open ocean waters in epipelagic and bathypelagic zones from 0 to 5000 m. They show high-speed vertical migration and bioluminescent characteristics. In the Atlantic Ocean only the speciesG. asymmetricaBjörnberg T. K. S. & Campaner, 1988 andG. princeps(Scott T., 1894) have been recorded previously. We report the first occurrence of the rarely recordedG. intermediaDefaye, 1998 for the Atlantic off Brazil. The specimens were collected around the Rocas Atoll (3°51′S 33°49′W), through the ABRAÇOS (Acoustic along the BRazilian COast) project on board R/V “Antea” in October 2015, using a micronekton net (mesh size 1 mm) and oblique hauls. Five specimens were collected at Rocas Atoll, in depths of 510-525 m. This finding expands the global distribution ofG. intermediaand is the first occurrence in the Atlantic Ocean, updating the checklist of meso-bathypelagic copepods for Brazilian waters.

New species of the genera Havelockia and Thyone (Echinodermata: Holothuroidea) and first record of T. crassidisca from the southwestern Atlantic Ocean

Zootaxa ◽  
2018 ◽  
Vol 4407 (4) ◽  
pp. 553 ◽  
Author(s):  
LUCIANA MARTINS ◽  
MARCOS TAVARES
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Body Wall ◽  
First Record ◽  
South Atlantic Ocean ◽  
Brazilian Coast ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Two New Species ◽  
First Time

Two new species in the genera Thyone and Havelockia are described and illustrated based upon specimens collected from off the southeastern Brazilian coast. Thyone florianoi sp. nov. is characterized by having two pillared body wall tables with four-holed discs and introvert with multilocular tables. Thyone crassidisca is recorded herein for the first time from the South Atlantic Ocean (Brazil). Havelockia mansoae sp. nov. is distinctive in having two pillared body wall tables with four-holed discs and introvert with plates. This is the first record of the genus Havelockia from Brazilian waters. 

Lithophylloideae and Mastophoroideae (Corallinales, Rhodophyta) from the Brazilian continental shelf

Phytotaxa ◽  
2014 ◽  
Vol 190 (1) ◽  
pp. 112 ◽  
Author(s):  
Maria Carolina Henriques ◽  
RAFAEL RIOSMENA-RODRÍGUEZ ◽  
LUANA MIRANDA COUTINHO ◽  
MARCIA A. O. FIGUEIREDO
Keyword(s):  
Atlantic Ocean ◽  
Continental Shelf ◽  
First Record ◽  
Coralline Algae ◽  
Conservation Programs ◽  
Anatomical Analysis ◽  
Relevant Role

Brazilian continental shelf is rich in rhodolith beds and it has a relevant role as a critical ecosystem for conservation. However, we do not know the taxonomy of the rhodolith forming species and because of that we analysed samples from the REVIZEE project in which morpho-anatomical analysis was used to identify Lithophylloideae and Mastophoroideae species. We found Titanoderma pustulatum; Lithophyllum stictaeforme; Lithophyllum corallinae, Hydrolithon breviclavium, Hydrolithon onkodes and Spongites fruticulosus. This is the first detailed description of T. pustulatum from Brazil and S. fruticulosus from the Atlantic Ocean, the first record of H. breviclavium in the Atlantic Ocean and of H. onkodes in Brazilian water. L. corallinae was found 250 m deep—that is a new Coralline algae depth record for Brazilian waters. This study contributes to the understanding of the diversity in Brazilian continental shelf and indicates the importance of future systematic studies. This knowledge is relevant to guide conservation programs and evaluation of impacts.

Taxonomy of the genus Thyonella (Holothuroidea: Dendrochirotida), with mention of the first record of T. sabanillaensis from the southwestern Atlantic Ocean

Zootaxa ◽  
2018 ◽  
Vol 4527 (1) ◽  
pp. 75
Author(s):  
LUCIANA MARTINS
Keyword(s):  
Pacific Ocean ◽  
Atlantic Ocean ◽  
First Record ◽  
Morphological Characters ◽  
Sem Analysis ◽  
Southwestern Atlantic ◽  
Internal Morphology ◽  
The Pacific ◽  
Southwestern Atlantic Ocean ◽  
The Pacific Ocean

The genus Thyonella currently comprises four species which occur in the Atlantic and Pacific Oceans. Thyonella mexicana is the only species known to occur in the Pacific Ocean. The main morphological characters used to distinguish Thyonella species are their dermal ossicles. Since the differences among these characters are subtle, this contribution provides a detailed description and comparison of the ossicle assemblage of the concerned taxa. In addition, description of the internal morphology of three of the concerned species is also provided. Further, this study reports on the first record of Thyonella sabanillaensis for the Southwestern Atlantic. A worldwide revision of the distributional records of Thyonella species is presented and their taxonomy is discussed, concluding that some traditional taxonomic characters should be used cautiously. A brief discussion about the importance of SEM analysis is also provided. 

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