New records of the family Crangonidae (Decapoda: Caridea) from Southwestern Atlantic

Zootaxa ◽  
2018 ◽  
Vol 4369 (1) ◽  
pp. 46
Author(s):  
FLAVIO DE ALMEIDA ALVES-JÚNIOR ◽  
GIRLENE FÁBIA SEGUNDO VIANA ◽  
MARINA DE SÁ LEITÃO CÂMARA DE ARAÚJO ◽  
JESSER F. SOUZA-FILHO
Keyword(s):  
Atlantic Ocean ◽  
New Records ◽  
Southwestern Atlantic ◽  
Deep Waters ◽  
Southwestern Atlantic Ocean ◽  
The Family ◽  
First Time

The family Crangonidae comprises 22 genera and 219 species. Six species are recorded in the Southwestern Atlantic. In this paper, two species of this family, Pontophilus brevirostris Smith, 1881 and Sabinea hystrix (A. Milne-Edwards, 1881) are recorded for the first time to southwestern Atlantic Ocean. Additionally, we record the occurrence of Parapontocaris caribbaea (Boone, 1927), Parapontophilus gracilis (Smith, 1882) and Philocheras gorei (Dardeau, 1980) to the Northeast of Brazil. Through this paper, we raised the number of Cragonidae species to eight from recorded from southwestern Atlantic (Brazilian deep waters). 

scholarly journals Remarks on the morphology and distribution of some rare centric diatoms in southern Brazilian continental shelf and slope waters

2012 ◽  
Vol 60 (4) ◽  
pp. 415-427 ◽  
Author(s):  
Marinês Garcia ◽  
Clarisse Odebrecht
Keyword(s):  
Atlantic Ocean ◽  
Continental Shelf ◽  
Southwestern Atlantic ◽  
Patos Lagoon ◽  
La Plata ◽  
Centric Diatoms ◽  
Southwestern Atlantic Ocean ◽  
The Family ◽  
Scanning Electron Microcopy ◽  
First Time

This paper provides information on the morphology and occurrence of extant diatoms of the family Asterolampraceae and Azpeitia species of the southernmost Brazilian continental shelf and slope waters in the Southwestern Atlantic Ocean (28 -34ºS), under the influence of Tropical, Subtropical, Subantarctic Waters, terrestrial discharges from La Plata River and Lagoa dos Patos lagoon. Plankton was sampled (20 µm net; vertical hauls) at the same 27 stations in winter 2005 and summer 2007. Among Asterolampraceae, Asteromphalus flabellatus was the most frequent species (57% of samples) observed mainly in winter samples (92%) in Subtropical Shelf Water but also under the influence of La Plata River plume (salinity <35). Lower frequencies were observed for Asterolampra marylandica, Asteromphalus elegans, Asteromphalus heptactis and Spatangidium arachne. Four species of Azpeitia were observed: A. barronii and A. neocrenulata for the first time in the South Atlantic Ocean while A. africana and A. nodulifer had already been registered in equatorial and southern areas of Brazil. All Azpeitia species were rare (19%) in offshore samples (100-200 m depth. Remarks on the morphology based on light and scanning electron microcopy observations are provided along with their distribution in the study area.

New records of deep-sea shrimps of family Solenoceridae Wood-Mason & Alcock, 1891 (Crustacea: Decapoda: Dendrobranchiata) from Southwestern Atlantic

Zootaxa ◽  
2017 ◽  
Vol 4254 (4) ◽  
pp. 473 ◽  
Author(s):  
FLAVIO DE ALMEIDA ALVES-JÚNIOR ◽  
MARINA DE SÁ LEITÃO CÂMARA DE ARAÚJO ◽  
JESSER F. SOUZA-FILHO
Keyword(s):  
Deep Sea ◽  
New Records ◽  
Brazilian Coast ◽  
Distributional Pattern ◽  
Southwestern Atlantic ◽  
Deep Waters ◽  
Potiguar Basin ◽  
The Family ◽  
First Time

This paper reports the occurrence of four deep waters shrimps of the family Solenoceridae in the southwestern Atlantic, Brazil. The rare Hadropenaeus modestus is collected for the second time from Brazilian waters after 138 years, filling the gaps on its distributional pattern. Mesopenaeus tropicalis is a new register for Potiguar basin, although it is common along Brazilian coast. Hymenopenaeus chacei and H. laevis are recorded for the first time in southwestern Atlantic. The records of these species in the southwestern Atlantic are an important advancement to raise the knowledge of the deep-sea shrimps. 

First report of rare pomfrets (Teleostei: Bramidae) from Brazilian waters, with a key to Western Atlantic species

Zootaxa ◽  
2009 ◽  
Vol 2290 (1) ◽  
pp. 1-26 ◽  
Author(s):  
ALFREDO CARVALHO-FILHO ◽  
GUY MARCOVALDI ◽  
CLÁUDIO L. S. SAMPAIO ◽  
M. ISABEL G. PAIVA ◽  
LUIZ A. G. DUARTE
Keyword(s):  
Deep Water ◽  
New Records ◽  
Morphological Characters ◽  
Biological Data ◽  
Museum Collections ◽  
Southwestern Atlantic ◽  
Western Atlantic ◽  
Deep Waters ◽  
The World ◽  
First Time

This is the first in a series of reports describing new records caught with circle hooks, a method only now being employed in exploratory fishing in Brazilian deep waters. Several new records of deep-water fishes were obtained with this equipment. In this paper we record for the first time the occurrence of two genera and species of Bramidae in Brazilian waters: the tropical pomfret Eumegistus brevorti and the keeltail pomfret Taractes rubescens. We also report on previously unnoticed collection records from preserved specimens of Pterycombus brama in museum collections, and the first capture of an adult bigscale pomfret Taractichthys longipinnis in Brazil. These new records increase the number of bramid species known from Brazilian waters to ten. The addition of P. brama to the Brazilian Bramidae makes the Southwestern Atlantic the only known area of the world where two species of Pterycombus are found together. Meristic, biometric, and new biological data are presented for Eumegistus brevorti. Some species of bramids are rather rare and even if well described in the literature there are morphological characters and behavioral aspects yet to be added. Herein we present detailed descriptions of some bramid species to add to their published descriptions. A key to the Western Atlantic Bramidae is provided.

Hydromedusae (Cnidaria: Hydrozoa) from the temperate southwestern Atlantic Ocean: a review

Zootaxa ◽  
2008 ◽  
Vol 1750 (1) ◽  
pp. 1 ◽  
Author(s):  
GENZANO GABRIEL ◽  
HERMES MIANZAN ◽  
JEAN BOUILLON
Keyword(s):  
Species Richness ◽  
Atlantic Ocean ◽  
Continental Shelf ◽  
New Records ◽  
South Atlantic Ocean ◽  
Valid Species ◽  
Southwestern Atlantic ◽  
Southwest Atlantic ◽  
Number Of Species ◽  
Southwestern Atlantic Ocean

Hydromedusae are one of the best-represented planktonic groups in waters of the South Atlantic Ocean in terms of species richness. Nevertheless, medusae of the region are inadequately known because earlier studies have been limited and restricted to few areas. During the last two decades, almost 2000 samples from 54 research cruises have been collected, mostly within the continental shelf of Argentina and Uruguay (33 – 55º S). These samples provide an opportunity to significantly augment knowledge of the richness of the medusa fauna in the southwest Atlantic. Forty species of hydromedusae (six of them new records for the area), including 15 of Anthomedusae, 14 of Leptomedusae, three of Limnomedusae, four of Narcomedusae, and four of Trachymedusae, were identified. Our results indicate that previous lists overestimated species richness of hydromedusae in the area. When misidentifications, updated species synonymies, and doubtful records are taken into account, 71 valid species are recognized here from the study area. Based upon this corrected inventory list, the data suggest that the number of species of hydromedusae decreases markedly with increasing latitude, corresponding with that observed in other planktonic groups of invertebrates.

scholarly journals Morphology and distribution of two epizoic diatoms (Bacillariophyta) in Brazil

2012 ◽  
Vol 26 (4) ◽  
pp. 836-841 ◽  
Author(s):  
Luciano Felício Fernandes ◽  
Mariana Calixto-Feres
Keyword(s):  
Atlantic Ocean ◽  
Body Surface ◽  
Range Limits ◽  
Brazilian Coast ◽  
Entire Body ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Electron Microscopes ◽  
First Time ◽  
Euterpina Acutifrons

The epizoic diatoms Pseudohimantidium pacificum and Falcula hyalina, which live on copepods, were investigated using light and electron microscopes, based on material gathered from different marine environments along the Brazilian coast. Pseudohimantidium pacificum is reported for the first time for the Southwestern Atlantic Ocean, significantly enlarging its range of geographic distribution. This species usually covers the entire body surface of the copepods Corycaeus amazonicus and Euterpina acutifrons, and of cypris larvae of Cirripedia. Falcula hyalina uses a higher number of copepod hosts, particularly Oithona oswaldocruzii, Pseudodiaptomus richardii and Acartia spp. The valve morphology and biometrical data of both diatoms were within the range limits recorded in the literature, including the original publications. Both species occurred in all the sampling stations along the Brazilian coastline stretching from 12°S down to 28°S. Falcula hyalina had already been found as far as latitude 31°S in the Southwestern Atlantic Ocean.

scholarly journals Heart urchins from the depths: Corparva lyrida gen. et sp. nov. (Palaeotropidae), and new records for the southwestern Atlantic Ocean

2021 ◽  
Vol 69 (Suppl.1) ◽  
pp. 14-34
Author(s):  
Jonathan-N. Flores ◽  
Pablo-E. Penchaszadeh ◽  
Martín-I. Brogger
Keyword(s):  
Atlantic Ocean ◽  
New Genus ◽  
New Records ◽  
Sea Urchins ◽  
First Record ◽  
Southwestern Atlantic ◽  
New Genus And Species ◽  
Apical System ◽  
Southwestern Atlantic Ocean ◽  
Rear Part

Introduction: Sea urchins in the order Spatangoida are the most diverse group of extant echinoids. Objective: Describe a new genus and species of Spatangoida from abyssal depths, and add new records for known species. Methods: Specimens were collected during several cruises at different areas of the southwestern Atlantic Ocean (SWAO), among 37-55° S latitude at depths ranging from 55 to 3 000 m. We present morphological and ultrastructure analyses. Results: Corparva lyrida gen. et sp. nov. (Palaeotropidae) is described from the Mar del Plata Canyon on the Argentine continental slope (2 950 m depth), the first record of this family from Argentina. Corparva gen. nov. differs in having an apical system semi-ethmolytic, and labrum reaching to rear part of second adjacent ambulacral plate. We also report the northernmost distribution and deepest record for Brisaster moseleyi (38° S latitude, 2 212 m depth), the northward extension of the distribution range of Tripylus excavatus (39° S latitude, 74 m depth), and the first record of Abatus philippii and Abatus agassizii at the Burdwood Bank/MPA Namuncurá. Conclusions: The present work brings novel and updated data about the diversity and distribution of spatangoids from the SWAO, including the description of C. lyrida gen. et sp. nov., and new records of species. This shows how much remains to be known about the diversity and distribution of heart urchins in the SWAO, especially from the deep-sea.

scholarly journals New discoveries for the subfamily Phtisicinae Vassilenko, 1968 (Crustacea: Senticaudata) from the Brazilian coast

2020 ◽  
Author(s):  
Fábio da Motta Mauro ◽  
Priscila Soares do Nascimento ◽  
Cristiana Silveira Serejo
Keyword(s):  
Atlantic Ocean ◽  
Original Description ◽  
Brazilian Coast ◽  
Southwestern Atlantic ◽  
Espírito Santo ◽  
Campos Basin ◽  
Southwestern Atlantic Ocean ◽  
The Caribbean ◽  
Espirito Santo ◽  
First Time

Amphipod material collected from Brazil on Ilha do Arvoredo, (Santa Catarina), Campos Basin, (Rio de Janeiro) and Espírito Santo Basin (Espírito Santo) in the southwestern Atlantic Ocean yielded new taxonomic findings for the subfamily Phtisicinae Vassilenko, 1968. Hemiproto wigleyi McCain, 1968, previously recorded from the Gulf of Mexico to the Caribbean Sea, is herein redescribed and recorded for the first time from the Brazilian coast. The type material of Phtisica verae Quitete, 1979, a poorly described species recorded from Brazil and based only on its original description, was examined and considered herein as a junior synonym of P. marina Slabber, 1769, a well-known and widely distributed species from the Atlantic Ocean and the Mediterranean Sea. In this paper, Phtisica marina is redescribed, with its two morphotypes of male gnathopod two, and compared with previous descriptions. The geographic distribution of both H. wigleyi and P. marina is provided. 

Revision of the deep-sea Eulimidae (Gastropoda, Caenogastropoda) from off Northeast Brazil

Zootaxa ◽  
2021 ◽  
Vol 4927 (4) ◽  
pp. 451-504
Author(s):  
LEONARDO SANTOS DE SOUZA ◽  
ALEXANDRE DIAS PIMENTA ◽  
JOSÉ CARLOS NASCIMENTO DE BARROS
Keyword(s):  
New Species ◽  
New Records ◽  
Original Description ◽  
Shell Morphology ◽  
Northeast Brazil ◽  
Southwestern Atlantic ◽  
Marine Gastropods ◽  
Additional Information ◽  
The Family ◽  
First Time

The present study reviews the taxonomy of the marine gastropods belonging to the family Eulimidae Philippi, 1853 from the continental slope off Northeast Brazil. The genera Abyssoaclis Barros, Mello, Barros, Lima, Santos, Cabral & Padovan, 2003 and Aclis Lovén, 1846 were not treated here. A total of 20 taxa were identified in this region, excluding Eulima hebes Watson, 1883, a species with a doubtful classification in Eulimidae. The species were assigned to the following genera: Costaclis Bartsch, 1947, Eulima Risso, 1826, Fusceulima Laseron, 1955, Melanella Bowdich, 1822, Ophieulima Warén & Sibuet, 1981, Sticteulima Laseron, 1955, Thaleia Warén, 1979, and Umbilibalcis Bouchet & Warén, 1986. The genera Sticteulima, Ophieulima and Umbilibalcis are reported for the first time in the southwestern Atlantic. Four species represent new records for the southwestern Atlantic. A redescription of the shell morphology is provided for: Costaclis egregia (Dall, 1889b), Melanella doederleini (Brusina, 1886), and Umbilibalcis lata (Dall, 1889b). Additional information to the original description are reported for other species. Melanella sarissa is considered as a synonym of Melanella cinca Dall, 1927. Six new species are described: Eulima cracentis sp. nov., Melanella paraabida sp. nov., M. adiastalta sp. nov., M. anapetes sp. nov., Sticteulima cabrali sp. nov. and S. canopusensis sp. nov. Lectotypes are designated for: Costaclis hyalina, C. egregia, Eulima ephamilla (Watson, 1883), E. psila and E. (?) hebes. Eulima sp. 1, Melanella sp. 1 and Melanella sp. 2 are potential new species, but the scarcity of material precludes a formal description at this moment. 

Scissurella clathrata in the San Jorge Gulf (Argentina) and the identity of the enigmatic S. dalli Bartsch, 1903 (Gastropoda: Scissurellidae)

Zoosymposia ◽  
2008 ◽  
Vol 1 ◽  
pp. 265-269
Author(s):  
DIEGO G. ZELAYA ◽  
DANIEL L. GEIGER
Keyword(s):  
United States ◽  
Atlantic Ocean ◽  
Smithsonian Institution ◽  
Original Description ◽  
The United States ◽  
Type Locality ◽  
National Museum ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
First Time

Scissurella dalli Bartsch, 1903, from the southwestern Atlantic Ocean has been reported at least six times in the malacological literature. However, the species is thus far known only from the original description; it was never fi gured; and the type material is missing from the original repository, the United States National Museum, Smithsonian Institution. In the present study, we examine specimens of a scissurellid collected adjacent to the type locality of Scissurella dalli, and evaluate their identity. These specimens proved to correspond to Scissurella clathrata Strebel, 1908. Even though this species shows some similarity with the original description of Scissurella dalli, the vague description by Bartsch lacking details and even containing contradictory indications, led us to the conclusion that they are not conspecifi c. Thus, Scissurella clathrata is reported for the first time at the type locality of S. dalli, and the latter remains as a nomen dubium.

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