Two new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil

Zootaxa ◽  
2017 ◽  
Vol 4337 (2) ◽  
pp. 263 ◽  
Author(s):  
MORGANA TAIS STRECK ◽  
GIOVANNA MONTICELLI CARDOSO ◽  
STELLA GOMES RODRIGUES ◽  
DANIEL ANGELO SGANZERLA GRAICHEN ◽  
DANIELA DA SILVA CASTIGLIONI
Keyword(s):  
New Species ◽  
Rio Grande ◽  
The State ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Artificial Pond ◽  
Two New Species ◽  
Northwest Region

There are 68 known species of Hyalella worldwide, with 23 occurring in Brazil. The state of Rio Grande do Sul, Southern Brazil, has the largest diversity of the genus in the country, with nine species recorded. The current study aimed to describe two new species of Hyalella from state of Rio Grande do Sul, both of them in the Northwest region of the state, one found in a small spring and another in an artificial pond. Hyalella georginae n. sp. presents several clusters of simple setae on antenna 2, maxilliped very slender, gnathopod 2 dactylus not reaching the lobe of propodus, pleopods rami with short plumose setae and a peculiar pattern of setae on uropods and telson. Hyalella gauchensis n. sp. presents antenna 2 with few setae, maxilliped very slender, gnathopod 2 dactylus reaching the lobe of propodus and pleopods rami with long plumose setae. From this work, the number of Hyalella species found in Brazil increases to 25 and 70 for the genus. 

A new species of Graphis (Graphidaceae: Lichenized Ascomycota) and a revised key of the genus in Rio Grande do Sul, southern Brazil

Phytotaxa ◽  
2016 ◽  
Vol 289 (3) ◽  
pp. 271 ◽  
Author(s):  
SHIRLEY CUNHA FEUERSTEIN ◽  
NATÁLIA MOSSMANN KOCH ◽  
FABIANE LUCHETA ◽  
VERA MARIA FERRÃO VARGAS ◽  
ROSA MARA BORGES DA SILVEIRA
Keyword(s):  
New Species ◽  
Rio Grande ◽  
The State ◽  
Title Page ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Orange Pigment ◽  
Tlc Analysis ◽  
A New Species

(A new species of Graphis [Graphidaceae: Lichenized Ascomycota] and a revised key of the genus in Rio Grande do Sul, southern Brazil). In this paper we describe a new species of the lichen genus Graphis, namely G. suzanae Koch & Feuerstein. This species is characterized mainly by lirellae with entire labia, a partially exposed disc with orange pigment in the epithecium, a lateral thalline margin, a laterally carbonized excipulum, a clear hymenium, and transversely septate ascospores measuring 40–44 × 8–10 μm. The chemistry of the species was assessed through TLC analysis. A complete key with G. suzanae and 56 more species of Graphis that where previously recorded to the state of Rio Grande do Sul, southern Brazil, is included.

New species of the genera Lupaeus and Rubroscirus (Acari: Cunaxidae) from Southern Brazil

2020 ◽  
Vol 25 (12) ◽  
pp. 2224-2234
Author(s):  
Wesley Borges Wurlitzer ◽  
Liana Johann ◽  
Noeli Juarez Ferla ◽  
Guilherme Liberato Da Silva
Keyword(s):  
New Species ◽  
Leaf Litter ◽  
Atlantic Forest ◽  
Rio Grande ◽  
Brazilian Atlantic Forest ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Santa Catarina ◽  
Two New Species ◽  
Forest Biome

Two new species of Cunaxidae from Brazilian Atlantic Forest biome are described. Lupaeus stolli Wurlitzer & Ferla sp. nov. was collected from Varronia curassavica Jacq. (Boraginaceae), in Santa Catarina state, and Rubroscirus grilloi Wurlitzer & Ferla sp. nov. from Vernonanthura tweediana (Baker) H. Rob., soil and leaf litter, in Rio Grande do Sul state, Brazil.

New species of the genera Lupaeus and Rubroscirus (Acari: Cunaxidae) from Southern Brazil 

2020 ◽  
Vol 25 (12) ◽  
pp. 2320
Author(s):  
Wesley Borges Wurlitzer ◽  
Liana Johann ◽  
Noeli Juarez Ferla ◽  
Guilherme Liberato Da Silva
Keyword(s):  
New Species ◽  
Leaf Litter ◽  
Atlantic Forest ◽  
Rio Grande ◽  
Brazilian Atlantic Forest ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Santa Catarina ◽  
Two New Species ◽  
Forest Biome

Two new species of Cunaxidae from Brazilian Atlantic Forest biome are described. Lupaeus stolli Wurlitzer & Ferla sp. nov. was from Varronia curassavica Jacq. (Boraginaceae), on Santa Catarina state, and Rubroscirus grilloi Wurlitzer & Ferla sp. nov. was from Vernonanthura tweediana (Baker) H. Rob., soil and leaf litter, on Rio Grande do Sul state, Brazil.

Description of Two New Species of the Genus Vorticella (Ciliophora: Peritrichia) Epibionts on Pomacea canaliculata (Mollusca: Ampullariidae: Gastropoda) in Southern Brazil

Zootaxa ◽  
2018 ◽  
Vol 4508 (2) ◽  
pp. 211
Author(s):  
MARCOS W. O. PEREIRA ◽  
FABIANO CARVALHO De BRITO ◽  
EDUARDO EIZIRIK ◽  
LAURA R. P. UTZ
Keyword(s):  
New Species ◽  
Rio Grande ◽  
The Other ◽  
Pomacea Canaliculata ◽  
Regular Pattern ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Patos Lagoon ◽  
Two New Species ◽  
Scanning Electron

The peritrich ciliates Vorticella veloxiiforme n.sp. and Vorticella ampullaria n.sp. were found as epibionts on the ampullarid mollusk Pomacea canaliculata collected from Patos Lagoon, Rio Grande do Sul state, Brazil. The detailed morphology of both species was investigated using live and stained specimens, as well as scanning electron microscopy. Zooids of Vorticella veloxiiforme are cup shaped measuring 57 X 41 μm on average. A J-shaped macronucleus lies in the upper half of the cell. One contractile vacuole was observed in the upper part of the cell. V. ampullaria presents an elongate zooid measuring 70 X 25 µm on average. A C-shaped macronucleus lies in the middle of the cell. Two contractile vacuoles are present: one close to the peristome and the other in the lower half of the cell. The pattern of oral polykinetids was typical of the genus, with all infundibular polykinetids composed by three rows of kinetosomes each. SEM revealed a regular pattern of pores present on the zooid membrane of both species. Analyses of the 18s rDNA placed the two new species in the order Vorticellida close to described species of Vorticella. 

Two new species of Hyalella (Amphipoda, Dogielinotidae) from Brazil

Crustaceana ◽  
2013 ◽  
Vol 86 (7-8) ◽  
pp. 802-819 ◽  
Author(s):  
Alessandra A. P. Bueno ◽  
Paula B. Araujo ◽  
Giovanna M. Cardoso ◽  
Kelly M. Gomes ◽  
Georgina Bond-Buckup
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Morphological Characters ◽  
The State ◽  
Freshwater Species ◽  
Rio Grande Do Sul ◽  
Hydrographic Basin ◽  
Two New Species ◽  
Polygonal Pattern ◽  
Cuticular Structures

Two new freshwater species of amphipods from Brazil are described here. Hyalella xakriaba n. sp. occurs in the hydrographic basin of the São Francisco River, in a biome characterized by a semiarid climate, in the state of Minas Gerais. This new species constitutes the northernmost record of the genus in Brazil. Hyalella kaingang n. sp. occurs in the hydrographic basin of the Mampituba River, located in Rio Grande do Sul, the southernmost state in Brazil. Currently 14 species of Hyalella are known in Brazil, cave species among them. Some morphological characters and their respective states are analyzed, and constitute an important new tool for species identifications. In particular, we describe the cuticular structures, defined as denticles, on the distal inner margin of the carpus of gnathopods 1 and 2. These structures may have a polygonal pattern or appear as comb scales, and may be arranged in one or more rows.

Two new species of Sisyrinchium (Iridaceae) from Subtropical Highland Grasslands of Southern Brazil

Phytotaxa ◽  
2013 ◽  
Vol 88 (1) ◽  
pp. 9 ◽  
Author(s):  
ADRIANA M. AITA ◽  
OLIVIER CHAUVEAU ◽  
TATIANA T. SOUZA-CHIES ◽  
LILIAN EGGERS
Keyword(s):  
New Species ◽  
High Altitude ◽  
Rio Grande ◽  
Similar Species ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Santa Catarina ◽  
Ecological Information ◽  
Two New Species ◽  
High Altitude Grasslands

Sisyrinchium antemeridianum and S. flabellatum are two new species of Sisyrinchium sect. Hydastylus that occur in the high altitude grasslands of Southern Brazil, in the states of Rio Grande do Sul and Santa Catarina. Sisyrinchium antemeridianum can be distinguished from similar species by the conspicuous rhizome with remnants of old leaves and flowers with larger tepals and longer, connate filaments. Sisyrinchium flabellatum has a distinctive equitant phyllotaxis and a lax inflorescence of numerous flowers with small, typically reflexed tepals. Both species are endemic to the Highlands of Southern Brazil. Morphological descriptions, illustrations and ecological information for both plants are presented.

A new species of Cacatuocotyle (Monogenea, Dactylogyridae) parasitizing two species of Astyanax (Ostariophysi, Characidae) in southern Brazil

2014 ◽  
Vol 59 (4) ◽  
Author(s):  
Moisés Gallas ◽  
Cláudia Calegaro-Marques ◽  
Suzana Amato
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
External Surface ◽  
Accessory Piece ◽  
Rio Grande ◽  
The State ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
New Host ◽  
A New Species

AbstractA new species of Cacatuocotyle is described from the external surface of Astyanax aff. fasciatus and Astyanax jacuhiensis from Lake Guaíba, State of Rio Grande do Sul, Brazil. It differs from the other three species of the genus, recorded from Mexico and the State of Paraná, Brazil, by possessing an accessory piece with a long proximal portion, a U-shaped bar with irregular posterior margin in its midportion, and a haptor containing two circular thickenings with muscular anterior margins. Only one monogenean species, Urocleidoides astyanacis (= Characithecium costaricensis) was recorded for the host Astyanax aff. fasciatus, whereas none were known for A. jacuhiensis. This paper records a new host (A. jacuhiensis) for monogeneans in southern Brazil and extends southward with the geographical distribution of the genus Cacatuocotyle to the State of Rio Grande do Sul, Brazil.

scholarly journals A systematic review of diapoma (teleostei: characiformes: characidae: stevardiinae: diapomini) with descriptions of two new species from southern Brazil

2011 ◽  
Vol 51 (5) ◽  
pp. 59-82 ◽  
Author(s):  
Naércio A. Menezes ◽  
Stanley H. Weitzman
Keyword(s):  
Systematic Review ◽  
New Species ◽  
Type Species ◽  
Rio Grande ◽  
Reproductive Mode ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Two New Species ◽  
Coastal Streams ◽  
Dorsal Portion

Diapoma is reviewed and four species are recognized: (1) Diapoma thauma, new species, from streams of the rio Jacuí basin, state of Rio Grande do Sul; (2) D. pyrrhopteryx, new species collected from the rio Canoas and streams flowing into this basin in the states of Rio Grande do Sul and Santa Catarina, Brazil; (3) Diapoma terofali, from streams flowing into rio Uruguay in Uruguay and Rio Grande do Sul, Brazil and streams flowing into rio de la Plata, Argentina; and (4) Diapoma speculiferum, from lowland coastal streams in Rio Grande do Sul, Brazil and Uruguay. Diapoma pyrrhopteryx possess the posteroventral opercular elongation typical of D. speculiferum, type species of the genus, but which is absent in D. thauma and D. terofali. Nonetheless, all the diapomin species have the caudal pouch organ about equally developed in both sexes and the dorsal portion of the pouch opening bordered by a series of 3 to 8 elongated scales, the two derived features that characterize the group. The two previously described species, D. speculiferum and D. terofali, are redescribed. Previous hypotheses of relationships among the diapomin genera Planaltina, Diapoma and Acrobrycon are discussed on the basis of preliminary morphological information. It is proposed that the Diapomini is a monophyletic group. An identification key, information on sexual dimorphism, gonad anatomy, reproductive mode and distribution of the species of Diapoma are provided.

New species and new records of millipedes of the genus Rhinocricus Karsch, 1881 (Spirobolida: Rhinocricidae) from southern Brazil

Zootaxa ◽  
2012 ◽  
Vol 3172 (1) ◽  
pp. 55 ◽  
Author(s):  
PATRÍCIA E.S. RODRIGUES ◽  
RICARDO OTT ◽  
EVERTON N.L. RODRIGUES
Keyword(s):  
New Species ◽  
New Records ◽  
Rio Grande ◽  
The State ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Single Male ◽  
First Time

Until now no species of Rhinocricus have been described or registered for the state of Rio Grande do Sul, Brazil. In thiswork we describe and illustrate five new species of Rhinocricus from Rio Grande do Sul: R. itauba sp. nov., R. gauchussp. nov., R. guaritas sp. nov., and R. serranus sp. nov., described from specimens of both sexes, and R. vacariensis sp. nov.based on a single male. The species R. divaricatus, R. padbergi and R. serratus are registered for the first time for this state. A key to Rio Grande do Sul species is presented.

Description of a new species of Typhlodromus Scheuten (Acari: Phytoseiidae) from house dust from Rio Grande do Sul, BrazilAcari

Zootaxa ◽  
2012 ◽  
Vol 3507 (1) ◽  
pp. 84
Author(s):  
NOELI JUAREZ FERLA ◽  
GUILHERME LIBERATO DA SILVA ◽  
JOSEANE MOREIRA DO NASCIMENTO
Keyword(s):  
New Species ◽  
House Dust ◽  
Rio Grande ◽  
Species Group ◽  
The State ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Vacuum Cleaner ◽  
A New Species

Typhlodromus (Anthoseius) sabelisi n. sp., a member of the rhenanus species group, is described from the State of Rio Grande do Sul, in southern Brazil, based on specimens collected from house dust removed from a curtain using a vacuum cleaner. So far, only Typhlodromus (Anthoseius) ornatus (Denmark & Muma, 1973) and T. (A.) transvaalensis (Nesbitt, 1951) have been reported from the State of Rio Grande do Sul. A key to the species of Typhlodromus (Anthoseius) De Leon reported in Brazil is provided.

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