scholarly journals New species of Temnocephala (Platyhelminthes, Temnocephalida) ectosymbiont on vulnerable species of aeglids (Crustacea, Anomura) from the Neotropical Region

2018 ◽  
Vol 18 (4) ◽  
Author(s):  
Samantha Alves Seixas ◽  
Norton Dametto ◽  
Eduardo Périco
Keyword(s):  
New Species ◽  
Reproductive System ◽  
Rio Grande ◽  
First Record ◽  
Neotropical Region ◽  
Vulnerable Species ◽  
Rio Grande Do Sul ◽  
Anterior Portion ◽  
Vaginal Sphincter ◽  
A New Species

Abstract: A new species of the genus Temnocephala Blanchard, 1849 from southern Brazil was found on two species of anomuran crustaceans, Aegla spinipalma Bond-Buckup & Buckup, 1994 and Aegla grisella Bond-Buckup & Buckup, 1994, the latter classified as a vulnerable species by the "Lista de Referência da Fauna Ameaçada de Extinção no Rio Grande do Sul. Decreto no 41.672, de 11 junho de 2002". The crustaceans were collected from a tributary creek of the Forqueta river, Perau de Janeiro, Arvorezinha and a tributary creek of the Fão river, Pouso Novo, Rio Grande do Sul, Brazil; both localities belong to the Sub-Basin of Forqueta River. The new species differs from seven other temnocephalans epibionts on Aegla Leach, 1820, by having the following characters: 1. a long and slightly curved cirrus, 2. two vaginal sphincters, one proximal, big and asymmetric, and one distal, smaller and symmetric, and; 3. longer than wide, elongated epidermal 'excretory' syncytial plates (EPs), with a almost horizontally central excretory pore, displaced to the anterior portion of the plate. The new species' EP is the largest in total length among epibionts temnocephalans in crustaceans already registered. Regarding the similarities with the male reproductive system of Temnocephala axenosMonticelli, 1898, the new species has important differences in the female reproductive system. It has a larger proximal vaginal sphincter, located in the middle of the vagina, while the smaller distal one is at the extreme end of the organ. Besides that, the vaginal portion between the proximal and distal sphincters is conspicuous, with a strong muscular wall. This is the first record of a species of Temnocephala in the Taquari Valley, as well in the 'Perau de Janeiro', which is an area with a rich endemic fauna.

A new species of the spider genus Xenonemesia Goloboff and first record of  X. platensis Goloboff from Brazil (Araneae, Mygalomorphae, Microstigmatidae)

Zootaxa ◽  
2007 ◽  
Vol 1485 (1) ◽  
pp. 43-49 ◽  
Author(s):  
RAFAEL PREZZI INDICATTI ◽  
SYLVIA MARLENE LUCAS ◽  
ANTONIO DOMINGOS BRESCOVIT
Keyword(s):  
New Species ◽  
Rio Grande ◽  
First Record ◽  
The State ◽  
Rio Grande Do Sul ◽  
First Time ◽  
A New Species

Xenonemesia otti n. sp. (Microstigmatidae) is described from Viamão and X. platensis Goloboff newly recorded for the first time from Caçapava do Sul, both in the State of Rio Grande do Sul, Brazil.

Notes on slender species of the long-jawed spider genus Tetragnatha (Araneae, Tetragnathidae) with description of three new species

Zootaxa ◽  
2020 ◽  
Vol 4768 (1) ◽  
pp. 43-75
Author(s):  
PEDRO DE SOUZA CASTANHEIRA ◽  
RENNER LUIZ CERQUEIRA BAPTISTA
Keyword(s):  
New Species ◽  
Rio Grande ◽  
First Record ◽  
Neotropical Region ◽  
Sao Paulo ◽  
São Paulo ◽  
Rio Grande Do Sul ◽  
Nomina Dubia ◽  
Males And Females ◽  
Three New Species

New data about slender orb-weaving species of the cosmopolitan genus Tetragnatha are presented. Tetragnatha chauliodus (Thorell, 1890) and Tetragnatha tenuissima O. Pickard-Cambridge, 1889 are redescribed, including one synonymy for each species and the first record of the first species to the Neotropical region. Also, three new species are herein described, all based on males and females. Tetragnatha megalocera new species is recorded exclusively from Brazil (Espírito Santo, Rio de Janeiro, Rio Grande do Sul and São Paulo states), while Tetragnatha renatoi new species is recorded from Venezuela, Argentina (Misiones) and Brazil (Paraná, Pernambuco, Rio Grande do Sul, Rondônia, Santa Catarina and São Paulo states). Finally, Tetragnatha chiyokoae new species is described from Yunnan province (China) and Okinawa (Japan), with an additional record for Taiwan. Furthermore, Tetragnatha exilima (Mello-Leitão, 1943), Tetragnatha filigastra Mello-Leitão, 1943 and Tetragnatha lactescens (Mello-Leitão, 1947) are nomina dubia. 

Studies on the Zoarcidae (Teleostei: Perciformes) of the southern hemisphere. IX. A new species of Pachycara from the southwestern Atlantic

Zootaxa ◽  
2006 ◽  
Vol 1177 (1) ◽  
pp. 21 ◽  
Author(s):  
M. E. ANDERSON ◽  
MICHAEL M. MINCARONE
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Deep Sea ◽  
Rio Grande ◽  
First Record ◽  
Southwestern Atlantic ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Caudal Vertebrae ◽  
A New Species

A new species of deep-sea eelpout, Pachycara alepidotum, is described from four specimens, 199– 282 mm SL, collected in the upper bathyal zone off Rio Grande do Sul state, southern Brazil, and is the first record of the genus in the southwestern Atlantic. It is characterized by its lack of scales and ventral lateral line, few caudal vertebrae and only 1–2 rakers on the upper limb of the first gill arch. The largest specimen is an adult female.

A New species and records of Gripopterygidae (Plecoptera) from Rio Grande do Sul State, Southern Brazil

Zootaxa ◽  
2016 ◽  
Vol 4175 (5) ◽  
pp. 487
Author(s):  
MARCOS CARNEIRO NOVAES ◽  
PITÁGORAS DA CONCEIÇÃO BISPO
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
A New Species

A new species and a new combination for the subfamily Cunaxinae (Acari: Cunaxidae)

2022 ◽  
Author(s):  
Wesley Borges Wurlitzer ◽  
Anderson De Azevedo Meira ◽  
Naiara Antonia Nunes Vinhas ◽  
Noeli Juarez Ferla
Keyword(s):  
New Species ◽  
Leaf Litter ◽  
Rio Grande ◽  
Atlantic Rainforest ◽  
New Combination ◽  
Rio Grande Do Sul ◽  
Forest Fragment ◽  
Rural Forest ◽  
Atlantic Rainforest Biome ◽  
A New Species

A new species of Cunaxidae, namely Cunaxa bagualensis Wurlitzer & Ferla sp. nov., is described and illustrated based on females and males collected in soil and leaf litter in the Atlantic rainforest biome in a rural forest fragment in Mormaço county, Rio Grande do Sul state, Brazil. Additionally, Armascirus livingstoni Laniecka & Kazmierski, 2021 is transferred to Dactyloscirus based on some observations.  

A new species of coralsnake (Micrurus: Elapidae) from southern Brazil

Zootaxa ◽  
2007 ◽  
Vol 1447 (1) ◽  
pp. 1-26 ◽  
Author(s):  
MARCOS DI-BERNARDO ◽  
MARCIO BORGES-MARTINS ◽  
NELSON JORGE DA SILVA (Jr.)
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Black Ring ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Current Range ◽  
Black Rings ◽  
Black Head ◽  
A New Species

A new species of triadal coralsnake (Micrurus) is described from Rio Grande do Sul, Brazil. The new species differs from other Micrurus species in southern Brazil by the following characters: snout mostly black, head completely black, white gular region, triads with middle black ring 1.5 to 2 times longer than the external black rings, white rings shorter than the external black rings.  The new species occurs sympatrically with M. altirostris and adds to the following known triadal species for the region: M. baliocoryphus, M. pyrrhocryptus, M. lemniscatus, and Micrurus decoratus. Its current range is restricted to Rio Grande do Sul but it may reach adjacent areas of Argentina and Paraguay.

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.

The genus Pseudis (Anura: Pseudidae) in Rio Grande do Sul, southern Brazil, with description of a new species

2000 ◽  
Vol 21 (1) ◽  
pp. 39-55 ◽  
Author(s):  
Axel Kwet
Keyword(s):  
Life History ◽  
New Species ◽  
Rio Grande ◽  
Advertisement Call ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Body Coloration ◽  
The Family ◽  
A New Species

AbstractA new species of Pseudis is described from São Francisco de Paula, Rio Grande do Sul, Brazil. It is known from the southern parts of the Serra Geral where it occurs in grassland, inhabiting permanent ponds and still-water zones of slow flowing creeks. It is characterized by a paired vocal sac and a bulbous thumb, considerably widened at the base. It is distinguished from P. minutus by its different call, body coloration, rounded snout, and a more robust body with shorter hindlimbs. Advertisement call, tadpole, and life history are described. The taxonomy of the family Pseudidae in Rio Grande do Sul is discussed, supporting the synonymy of Lysapsus mantidactylus and P. meridionalis with P. minutus.

A new species of Opistheurista Carvalho, from Southern Brazil (Heteroptera: Miridae: Mirinae)

Zootaxa ◽  
2006 ◽  
Vol 1126 (1) ◽  
pp. 63 ◽  
Author(s):  
PAULO S.F. FERREIRA ◽  
LÍVIA A. COELHO
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Single Species ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
A New Species ◽  
Nearctic Region

The Resthenini genus Opistheurista has been known until now by the single species O. clandestina, which occurs in the Nearctic region. While studying mirids from Rio Grande do Sul, Brazil, we found a female exemplar as a new species. We provide descriptions, diagnoses, illustrations, and a key to distinguish the two species of genus Opistheurista.

A new species of Decimiana Uvarov from Brazil, with updated key to species and remarks on their geographic distribution (Mantodea: Acanthopidae, Acanthopinae)

Zootaxa ◽  
2017 ◽  
Vol 4291 (3) ◽  
pp. 521 ◽  
Author(s):  
CAROLINE MALDANER ◽  
JOSÉ ALBERTINO RAFAEL
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Key To Species ◽  
A New Species ◽  
Male Genital

Decimiana gaucha sp. nov. is described from Rio Grande do Sul, Brazil, and illustrated. New geographical records for D. tessellata (Charpentier), D. bolivari (Chopard) and D. hebardi Lombardo retrieved from Brazilian collections and a new key to species, based on male genital characters, are presented. 

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