Atlantiphoxus wajapi n. gen., n. sp. (Crustacea: Amphipoda: Phoxocephalidae), a new deep-sea amphipod from the southwestern Atlantic

2020 ◽  
Vol 84 (2) ◽  
Author(s):  
Luiz F. Andrade ◽  
André R. Senna
Keyword(s):  
Deep Sea ◽  
Rio De Janeiro ◽  
New Genus ◽  
Sao Paulo ◽  
São Paulo ◽  
Southwestern Atlantic ◽  
New Genus And Species ◽  
Eyes Absent ◽  
Southeastern Coast ◽  
The Family

A new genus and species of the family Phoxocephalidae is here described with material collected during the Mini Biological Trawl Project at 224 and 500 m depth off Brazil’s southeastern coast in the states of Rio de Janeiro and São Paulo. Atlantiphoxus wajapi n. gen., n. sp. can be grouped in the subfamily Phoxocephalinae and seems to be morphologically close to Fuegiphoxus Barnard and Barnard, 1980 and Parharpinia Stebbing, 1899. However it can be easily distinguished within the phoxocephalids by the following characters: deep pereonites with small coxae; rostrum unconstricted; eyes absent; man­dible molar not triturative, but as a small hump with 3 multicuspidate stout setae; pereopods 3-4 with stout dactylus; pereopod 5 basis strongly tapering distally; pereopod 7 basis anterodistal corner with a row of long plumose setae; dactylus elongate. Epimeral plate 3 posteroventral margin strongly produced.

Lebaziella gen.nov. (Insecta: Hemiptera: Cicadellidae: Cicadellini): a new sharpshooter genus with descriptions of two new species

Zootaxa ◽  
2010 ◽  
Vol 2566 (1) ◽  
pp. 57
Author(s):  
RODNEY RAMIRO CAVICHIOLI
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Type Species ◽  
New Genus ◽  
Sao Paulo ◽  
Lateral Margin ◽  
São Paulo ◽  
Apical Process ◽  
Two New Species ◽  
Subgenital Plate

The sharpshooter genus Lebaziella is described and placed in the tribe Cicadellini. Two new species of Lebaziella gen.nov. are described and illustrated: the type-species L. renatae sp. nov. (Bahia State, Brazil) and L. viridis sp. nov. (Rio de Janeiro, São Paulo, and Paraná States, Brazil). Species belonging to the new genus can be distinguished from other genera of Cicadellini based on the following characters: (1) pronotum narrower than head with lateral margin parallel; (2) male pygofer without processes; (3) subgenital plate longer than pygofer with many microsetae distributed across its surface; (4) aedeagus with an unpaired apical process, and (5) paraphyses absent.

Spirodesma magdae nov. gen. nov. sp. (Nematoda: Desmodoridae) from the Brazilian deep sea (Campos Basin, Rio de Janeiro, Brazil)

Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 109-118 ◽  
Author(s):  
MARIANA DA FONSECA CAVALCANTI ◽  
MARIA CRISTINA DA SILVA ◽  
VERÔNICA DA FONSÊCA-GENEVOIS
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Rio De Janeiro ◽  
New Genus ◽  
Buccal Cavity ◽  
Morphological Features ◽  
New Genus And Species ◽  
Unique Form ◽  
Campos Basin ◽  
Deep Sea Sediments

A new genus and species of Desmodoridae was found in deep-sea sediments of the Campos Basin. Although the cuticle annulation of the new species is similar to members of Desmodorinae, many morphological features are strong enough to classify it within the Spiriniinae. Spirodesma magdae nov. gen. nov. sp. is characterized mainly by the presence of a unique form of unispired amphids, with circular amphideal fovea, and a buccal cavity with three equal teeth, one dorsal and two ventrosublateral.

Systematics and phylogeny of Cristacoxidae (Copepoda, Harpacticoida): a review

Zootaxa ◽  
2010 ◽  
Vol 2568 (1) ◽  
pp. 1 ◽  
Author(s):  
RONY HUYS ◽  
TERUE CRISTINA KIHARA
Keyword(s):  
Sexual Dimorphism ◽  
Type Species ◽  
New Genus ◽  
Sandy Beach ◽  
Sao Paulo ◽  
São Paulo ◽  
Paulo State ◽  
The Family ◽  
São Paulo State ◽  
A New Species

Both sexes of a new species of Noodtorthopsyllus Lang, 1965 (Harpacticoida, Cristacoxidae) from a sandy beach in São Paulo State (Brazil) are described using light and scanning electron microscopy. Noodtorthopsyllus tageae sp. nov. displays a mosaic of characters drawn from both Noodtorthopsyllus and Cristacoxa Huys, 1990, blurring the boundaries between both genera. Consequently, Cristacoxa, the type genus of the nominal family-group taxon Cristacoxidae Huys, 1990, is relegated to a junior subjective synonym of Noodtorthopsyllus, and its type species is transferred to the latter as N. petkovskii (Huys, 1990) comb. nov. A new genus Acuticoxa is proposed to accommodate A. ubatubaensis sp. nov. (type species), collected on the northern continental shelf of São Paulo State, and A. biarticulata sp. nov., previously identified as Laophontisochra sp., from the Northern Magellan Straits. Amended diagnoses are provided for Noodtorthopsyllus and Laophontisochra. Autapomorphies supporting the monophyly of the Cristacoxidae are re-evaluated, including new data on P3 endopod sexual dimorphism and caudal ramus development. It is concluded that a recently published hypothesis of a deeply rooted split of the family into two highly divergent lineages cannot be supported. Consequently, both Laophontisochra and Acuticoxa gen. nov. are removed from the Cristacoxidae and tentatively assigned to the Nannopodidae (ex Huntemanniidae), forming a clade with three other genera displaying coxal modifications on leg 1 (Rosacletodes Wells, 1985; Huntemannia Poppe, 1884; and an as yet undescribed genus from Brazil). Based on the sexual dimorphism of the P4 endopod, we propose to transfer Metahuntemannia Smirnov, 1946 and Pottekia Huys, 2009 from the Nannopodidae to the Canthocamptidae (subfamily Hemimesochrinae) where they are probably most closely related to Psammocamptus Mielke, 1975; Bathycamptus Huys & Thistle, 1989; Perucamptus Huys & Thistle, 1989; and Isthmiocaris George & Schminke, 2003. An identification key to the genera of the Nannopodidae is presented.

Shallow-water Niphatidae (Haplosclerina, Haplosclerida, Demospongiae) from the São Sebastião Channel and its environs (tropical southwestern Atlantic), with the description of a new species

2005 ◽  
Vol 74 (3-4) ◽  
pp. 271-278 ◽  
Author(s):  
U. S. Pinheiro ◽  
R.G.S. Berlinck ◽  
E. Hajdu
Keyword(s):  
New Species ◽  
Shallow Water ◽  
Rio De Janeiro ◽  
Sao Paulo ◽  
São Paulo ◽  
Southwestern Atlantic ◽  
Western Atlantic ◽  
A New Species

Two niphatids are described here: Amphimedon viridis and Pachychalina alcaloidifera sp. nov. Amphimedon viridis is a common and conspicuous species in most of the tropical western Atlantic. Pachychalina alcaloidifera sp. nov. has this far been found only in the coasts of Rio de Janeiro and São Paulo states. Both species are described on the basis of series of specimens observed alive.

scholarly journals Discovery of a new genus of tanaidacean (Crustacea: Tanaidacea: Mirandotanaidae) found associated with a deep-sea terebellid polychaete

2011 ◽  
Vol 80 (2) ◽  
pp. 157-167 ◽  
Author(s):  
Eduardo Suárez-Morales ◽  
Mario Londoño-Mesa ◽  
Richard W. Heard
Keyword(s):  
Oral Cavity ◽  
Deep Sea ◽  
New Genus ◽  
Body Cavity ◽  
The Body ◽  
Unique Combination ◽  
New Genus And Species ◽  
The Bahamas ◽  
The Family ◽  
Florida Straits

Only one species of Tanaidacea, Expina typica, has been hitherto reported as an endosymbiont; it was recovered from the body cavity of deep-sea holothurians. During a survey of the deepsea benthic community in the Florida Straits off the Bahamas, Terebellatanais floridanus, a new genus and species of a tanaidomorphan tanaidacean was recovered at a depth of 545 m from the oral cavity of the terebellid polychaete Biremis blandi. Terebellatanais gen. nov. is tentatively assigned to the family Mirandotanaidae, as it appears to have affinities with Mirandotanais and Pooreotanais but also with Expina. It is distinguished from these genera by a unique combination of characters, including four antennular and antennal articles, a naked endite of the maxillipedal basis, hook-like chelipeds, the armature of the pereopods, and characters of the mouthparts. Most of the specimens of T. floridanus examined are mancas, but some were distinctly larger and with a different development of the last pereopod, thus suggesting that at least two manca stages are represented. The occurrence of the new genus and species within the oral cavity of B. blandi, its peculiar morphology, and the absence of fully grown adults, suggest that T. floridanus may be a symbiont of Biremis blandi at least during part of its development. Whether this relationship is commensal or parasitic remains to be determined.

A new genus and species of Aoridae (Amphipoda, Senticaudata), Propejanice lagamarensis gen. nov. sp. nov. from Brazil

Zootaxa ◽  
2019 ◽  
Vol 4629 (2) ◽  
pp. 287-293
Author(s):  
ALAN A. MYERS ◽  
ANDREA DESIDERATO
Keyword(s):  
New Genus ◽  
Single Species ◽  
Sao Paulo ◽  
São Paulo ◽  
Monotypic Genus ◽  
New Genus And Species

A new monotypic genus of aorid amphipod Propejanice gen. nov. is described and figured from material collected in Brazil. The single species, P. lagamarensis sp. nov. was collected from artificial plates suspended in the sea in Paraná and Sao Paulo States, Brazil. The new genus appears to be morphologically closest to the genus Janice Griffiths, 1973 from Moçambique, from which it differs in the carpochelate male gnathopod 1. Both genera are phylogenetically close to the genus Grandidierella Coutière, 1904. 

New genus and species of Polymastiidae (Demospongiae: Hadromerida) from the Antarctic deep sea

2007 ◽  
Vol 87 (6) ◽  
pp. 1395-1401 ◽  
Author(s):  
Alexander S. Plotkin ◽  
Dorte Janussen
Keyword(s):  
Phylogenetic Analysis ◽  
Deep Sea ◽  
New Genus ◽  
New Genus And Species ◽  
The Family ◽  
Abyssal Zone ◽  
The Antarctic

A new sponge genus and species, Astrotylus astrotylus, is described from the Antarctic abyssal zone. Its peculiar microscleres, herein referred to as astrotylostyles, combine the features of asterose spicules and tylostyles. Similar spicules are observed in Hymeraphia and Discorhabdella (order Poecilosclerida). But this similarity is convergent as far as a radial choanosomal skeleton composed by principal tylostyles and a cortical palisade of small tylostyles in Astrotylus undoubtedly confirm its allocation to the order Hadromerida and most likely to the family Polymastiidae. Atergia, Acanthopolymastia and Tylexocladus have the closest affinities with Astrotylus that calls for the phylogenetic analysis of their relations. Meanwhile astrotylostyles of Astrotylus, cladotylostyles of Tylexocladus and grapnel-like exotyles of Proteleia may be the remnants of non-monaxonic ancestral spicule type in Polymastiidae that calls for reconsideration of the relations between hadromerid families.

scholarly journals Eudendrium pocaruquarum n. sp. (Hydrozoa, Eudendriidae) from the southeastern coast of Brazil, with remarks on taxonomic approaches to the family Eudendriidae

1995 ◽  
Vol 65 (1) ◽  
pp. 35-40
Author(s):  
Antonio C. Marques
Keyword(s):  
New Species ◽  
Sao Paulo ◽  
The State ◽  
São Paulo ◽  
Southeastern Coast ◽  
The Family ◽  
A New Species

Eudendrium pocaruquarum , a new species of athecate hydroid referable to the family Eudendriidae, is described from the state of São Paulo, Brazil. The species is very similar to the widespread Eudendrium ramosum (Linnaeus, 1758), differing from it in the smaller size of the large microbasic euryteles. Longstanding problems in the systematics of eudendriid hydroids are noted, and the inadequacies of many early descriptions of species are discussed. The nematocysts provide a supplementary character for discrimination of species of Eudendrium, although information on the cnidome appears to have been sometimes misinterpreted in literature.

Kirkia heterobranchiata, a new genus and species of extratubular brooding sabellid (Polychaeta: Sabellidae) from São Paulo, Brazil

2004 ◽  
Vol 84 (4) ◽  
pp. 701-710 ◽  
Author(s):  
João M. de M. Nogueira ◽  
Eduardo López ◽  
Maíra C.S. Rossi
Keyword(s):  
Phylogenetic Analysis ◽  
New Genus ◽  
Sao Paulo ◽  
São Paulo ◽  
New Genus And Species ◽  
Branchial Crown

A new genus and species of sabellid polychaete from an organically enriched beach in São Sebastião, State of São Paulo, is described. Kirkia heterobranchiata is unique among sabellids for brooding the embryos on the dorsalmost pair of radioles, which exhibits several modifications for this purpose, rather than on ventral radioles. Morphologically, K. heterobranchiata is most closely related to Perkinsiana riwo, here referred to as the new genus, as suggested by phylogenetic analysis. The new genus is characterized by the shape of the lips (dorsal lips roughly triangular, broader than long; ventral lips lower, ventrally fused and distally rounded), by the absence of both radiolar and pinnular appendages, by having uncini with very short handles in both the thorax and abdomen, and by the ability to brood embryos in cocoons attached to the branchial crown.

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