New species of Clathria (Microciona) (Poecilosclerida: Microcionina: Microcionidae) from the Tropical South-western Atlantic Ocean (Sergipe State, north-eastern Brazil)

2015 ◽  
Vol 96 (2) ◽  
pp. 251-261 ◽  
Author(s):  
Joana Sandes ◽  
Ulisses Pinheiro
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Western Atlantic ◽  
Western Atlantic Ocean ◽  
Eastern Brazil ◽  
North Eastern ◽  
A New Species

Clathria is one of the most species-rich genera among Demospongiae, but only nine species have been recorded so far from Brazil. Here we describe a new species of Clathria (Microciona) collected by trawling in waters of Sergipe State (north-eastern Brazil). The new species is differentiated from other encrusting Clathria with a hymedesmioid skeleton by the possession of a combination of long thin subectosomal subtylostyles, two category sizes of acanthostyles, both erect and echinating the basal spongin skeleton, long slightly curved choanosomal principal subtylostyles with tuberculate spine heads and wing-shaped toxas as microscleres.

Uroptychus atlanticus, a new species of squat lobster (Crustacea: Decapoda: Anomura: Chirostylidae) from the western Atlantic Ocean

Zootaxa ◽  
2017 ◽  
Vol 4227 (2) ◽  
pp. 295
Author(s):  
KEIJI BABA ◽  
MARY K. WICKSTEN
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Gulf Of Mexico ◽  
Female Specimen ◽  
Western Atlantic ◽  
Squat Lobster ◽  
Western Atlantic Ocean ◽  
A New Species

A new species of squat lobster, Uroptychus atlanticus, is described on the basis of a female specimen taken at a depth of 713–841 m in the southeastern Gulf of Mexico. The new species is readily distinguished from all known species of the genus from the western Atlantic by the very spinose carapace and pereopods, and a transverse row of spines on each of the abdominal tergites 1 and 2. 

scholarly journals A new species of ladyfish, of the genus Elops (Elopiformes: Elopidae), from the western Atlantic Ocean

Zootaxa ◽  
2010 ◽  
Vol 2346 (1) ◽  
pp. 29-41
Author(s):  
RICHARD S. MCBRIDE ◽  
CLAUDIA R. ROCHA ◽  
RAMON RUIZ-CARUS ◽  
BRIAN W. BOWEN
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Cytochrome B ◽  
Larval Dispersal ◽  
Morphological Character ◽  
Sequence Divergence ◽  
Western Atlantic ◽  
Western Atlantic Ocean ◽  
A New Species

v This paper describes Elops smithi, n. sp., and designates a lectotype for E. saurus. These two species can be separated from the five other species of Elops by a combination of vertebrae and gillraker counts. Morphologically, they can be distinguished from each other only by myomere (larvae) or vertebrae (adults) counts. Elops smithi has 73–80 centra (total number of vertebrae), usually with 75–78 centra; E. saurus has 79–87 centra, usually with 81–85 centra. No other morphological character is known to separate E. smithi and E. saurus, but the sequence divergence in mtDNA cytochrome b (d = 0.023–0.029) between E. smithi and E. saurus is similar to or greater than that measured between recognized species of Elops in different ocean basins. Both species occur in the western Atlantic Ocean, principally allopatrically but with areas of sympatry, probably via larval dispersal of E. smithi by oceanographic currents.

A new species of Thorecta (Porifera: Demospongiae) from the western Atlantic, with remarks on the taxonomy of the genus

2010 ◽  
Vol 90 (4) ◽  
pp. 775-782 ◽  
Author(s):  
Josivete P. Santos ◽  
Suzane M. da Silva ◽  
Paulo H.O. Bonifácio ◽  
Eduardo L. Esteves ◽  
Ulisses S. Pinheiro ◽  
...  
Keyword(s):  
New Species ◽  
Valid Species ◽  
Northern Coast ◽  
Western Atlantic ◽  
Eastern Brazil ◽  
Potiguar Basin ◽  
The Family ◽  
North Eastern ◽  
History Of ◽  
A New Species

The family Thorectidae includes 23 valid genera and 130 species, characterized by the presence of laminated fibres and diplodal choanocytye chambers. Currently the genus Thorecta comprises approximately 20 valid species, distributed mainly in the Indo-Pacific. We describe here a new species of Thorecta that is the only valid species of the genus described in the Atlantic Ocean so far. Samples were collected by trawling on board of the RV ‘Astro Garoupa’ in Potiguar Basin, on the northern coast of Rio Grande do Norte State, north-eastern Brazil. Thorecta atlantica sp. nov. is greyish-brown to dark brownish-grey and presents a distinctive globular or clavulate shape, with 1–2 large apical oscules that open to deep atria. It was found between 61 and 160 m depth. A literature survey suggests that many species referred to Thorecta should be relocated to different genera due to absence of diagnostic characters, and that the genus Thorecta should group only 11 species: T. carteri, T. marginalis, T. prima, T. lata, T. farlovi, T. meandrina, T. polygona, T. reticulata, T. tuberculata, T. vasiformis and T. atlantica sp. nov. The tortuous history of the genus is an example of the damage that poorly-described species can cause to classification. Detailed descriptions of fresh material, well illustrated by photographs and including as many characters as possible, are essential tools for the clarification of the systematics of Thorecta in the future.

A new species of Stoeba (Demospongiae: Astrophorida) from oceanic islands off north-eastern Brazil

2007 ◽  
Vol 87 (6) ◽  
pp. 1387-1393 ◽  
Author(s):  
Fernando Moraes ◽  
Guilherme Muricy
Keyword(s):  
New Species ◽  
First Record ◽  
Oceanic Islands ◽  
Sao Paulo ◽  
Valid Species ◽  
Western Atlantic ◽  
Eastern Brazil ◽  
North Eastern ◽  
Fernando De Noronha ◽  
A New Species

The genus Stoeba has 11 recognized species. Herein we describe a new species of Stoeba endemic from two oceanic archipelagoes off north-eastern Brazil (Fernando de Noronha and São Pedro e São Paulo), constituting the first record of this genus for the western Atlantic. Stoeba latex sp. nov. is characterized by its thickly encrusting to massive shape, stretched surface, brownish-red colour, and spiculation of calthrops and sanidasters with well developed spines; dichotriaenes and oxeas are absent. Stoeba and Dercitus are very closely related genera, and should probably be merged. The genus Stoeba now contains the following valid species: S. dissimilis, S. exostotica, S. extensa, S. lesinensis, S. natalensis, S. occulta, S. pauper, S. plicata, S. reptans, S. simplex, S. syrmatita and S. latex sp. nov. Several other species still await description. A key to the valid species of Stoeba is given.

scholarly journals A new species of Hybanthus (Violaceae) from north-eastern Brazil

2003 ◽  
Vol 141 (4) ◽  
pp. 503-506
Author(s):  
JULIANA DE PAULA-SOUZA ◽  
VINICIUS CASTRO SOUZA
Keyword(s):  
New Species ◽  
Eastern Brazil ◽  
North Eastern ◽  
A New Species
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