scholarly journals Five new species of Candoninae (Crustacea, Ostracoda) from the alluvial valley of the Upper Paraná River (Brazil, South America)

2014 ◽  
Author(s):  
Janet Higuti ◽  
Koen Martens
Keyword(s):  
New Species ◽  
South America ◽  
Paraná River ◽  
Alluvial Valley ◽  
Parana River ◽  
Number Of Species ◽  
Two New Species ◽  
Upper Paraná River

The present paper describes five new species of candonid ostracods in two genera: Pseudocandona agostinhoi sp. nov., P. cillisi sp. nov., P. claudinae sp. nov., Candobrasilopsis elongata sp. nov. and C. acutis sp. nov. The three species of Pseudocandona belong to the caribbeana-group in this genus. With the two new species of Candobrasilopsis, this genus now comprises four species. Candobrasilopsis elongata sp. nov. is the most common of the five new species described here, while C. acutis sp. nov. and P. claudinae sp. nov. are known from one locality only, which is furthermore the same for both species: a small streamlet entering the Paraná River. With the description of the present five species, the number of species known from the Paraná River alluvial valley, including the Taquaruçu lakes, now amounts to 49.

On the Strandesia obtusata/elliptica lineage (Ostracoda, Cyprididae) in the alluvial valley of the upper Paraná River (Brazil), with the description of three new species

Crustaceana ◽  
2013 ◽  
Vol 86 (2) ◽  
pp. 182-211 ◽  
Author(s):  
Janet Higuti ◽  
Isa Schön ◽  
Leen Audenaert ◽  
Koen Martens
Keyword(s):  
New Species ◽  
Genetic Network ◽  
Genetic Distances ◽  
Paraná River ◽  
Coi Gene ◽  
Alluvial Valley ◽  
Mitochondrial Coi ◽  
Parana River ◽  
Upper Paraná River ◽  
Three New Species

We redescribe Strandesia tolimensis Roessler, 1990, originally described from Colombia, and describe three new species, Strandesia lansactohai n. sp., S. velhoi n. sp. and S. nupelia n. sp. from lakes, channels and rivers in the alluvial valley of the upper Paraná River. Mainly valve morphology and shape and size of the attachment of the caudal ramus are used to characterize these species, as other soft parts are uninformative. All populations studied here are parthenogenetic, so male morphologies are not available. Sequences of the mitochondrial COI-gene are used to construct a phylogeny, as well as a genetic network of specimens, and in both analyses the four species are well-supported. In addition, we also delimit the four species with genetic distances using Birky’s K/θ method and conclude that it supports the identity of the species under consideration.

Two new species of Xanthomicrogaster (Hymenoptera: Braconidae) from Argentina, with a key to species of the genus

Zootaxa ◽  
2018 ◽  
Vol 4370 (3) ◽  
pp. 295 ◽  
Author(s):  
JUAN JOSÉ MARTÍNEZ ◽  
ALEJANDRO ZALDÍVAR RIVERÓN
Keyword(s):  
New Species ◽  
South America ◽  
Paraná River ◽  
Key To Species ◽  
Parana River ◽  
Two New Species ◽  
First Time

The genus Xanthomicrogaster is reported for the first time from Argentina. Two new species, X. sayjuhu Martínez sp. nov. from NE Argentina, and X. otamendi Martínez sp. nov. from the delta of the Parana River are described and illustrated. These include the first reports of the genus from temperate latitudes in South America. A key to species of Xanthomicrogaster is provided. 

scholarly journals Vascular flora of the Upper Paraná River floodplain

2009 ◽  
Vol 69 (2 suppl) ◽  
pp. 735-745 ◽  
Author(s):  
MC. Souza ◽  
K. Kawakita ◽  
SR. Slusarski ◽  
GF. Pereira
Keyword(s):  
Ricinus Communis ◽  
Paraná River ◽  
Pennisetum Purpureum ◽  
Panicum Maximum ◽  
River Floodplain ◽  
Parana River ◽  
Number Of Species ◽  
Upper Paraná River Floodplain ◽  
Upper Paraná River ◽  
Paraná River Floodplain

The purpose of this study was to update the floristic inventory found in the Upper Paraná River floodplain. Floristic surveys were performed from February 2000 through March 2008, as part of the Brazilian Long-Term Ecological Research Program (PELD/CNPq -Site 6). The material collected was identified from 774 species, 442 genera, and 116 families. The ten families with high species richness were Leguminosae, Poaceae, Rubiaceae, Asteraceae, Euphorbiaceae, Myrtaceae, Cyperaceae, Solanaceae, Sapindaceae, and Orchidaceae, which contributed to 46.1% of the total number of species. Genera with high richness were Solanum, Cyperus, Panicum, Eugenia, Tillandsia, Serjania, Casearia, and Polygonum, which together contributed to 10.2% of the total number of species. These data, combined with information published in 1997, recorded 955 species, 575 genera, and 128 families. These organisms were from several riparian environments and were distributed as herbs, shrubs, trees, climbers and epiphytes. Panicum maximum, Pennisetum purpureum, Ricinus communis, and Urochloa decumbens are considered weeds due to the wide distributions determined for these species. The results presented herein suggest the need to further investigate the control of these potential weed species.

scholarly journals Description of a new genus and species of Candonopsini (Crustacea, Ostracoda, Candoninae) from the alluvial valley of the Upper Parana River (Brazil, South America)

2012 ◽  
Author(s):  
Janet Higuti ◽  
Koen Martens
Keyword(s):  
New Genus ◽  
Terminal Segment ◽  
Paraná River ◽  
New Combination ◽  
New Genus And Species ◽  
Alluvial Valley ◽  
Parana River ◽  
Mandibular Palp ◽  
Upper Paraná River ◽  
Basal Width

The genus Candobrasilopsis gen. nov. is here described, with C. rochai gen. nov. sp. nov. as type species, from the alluvial valley of the Upper Paraná River. The enigmatic Candonopsis brasiliensis Sars, 1901 is here redescribed and transferred to this new genus, the new combination being Candobrasilopsis brasiliensis (Sars, 1901). The new candonid genus belongs to the tribe Candonopsini, because of the absence of the proximal seta on the caudal ramus. It is closely related to Latinopsis Karanovic & Datry, 2009, because of the relatively short terminal segment of the mandibular palp (length less than 1.5 times the basal width, while this segment is longer than three times the basal width in Candonopsis) and the large and stout b-seta on the T1. However, it differs markedly from Latinopsis in the size and shape of the calcified inner lamellae of both valves and in the type of hemipenis. We also discuss the doubtful allocation of several other genera to the Candonopsini, raise Abcandonopsis Karanovic, 2004 to generic status and reassess the uncertain position of Candonopsis anisitsi Daday, 1905 within Latinopsis.

scholarly journals Sanguinicola platyrhynchi n. sp. (Digenea: Sanguinicolidae) parasite of visceral cavity of Hemisorubim platyrhynchos (Valenciennes, 1840) (Pisces: Pimelodidae) from the floodplain of the upper Paraná River, Brazil

2002 ◽  
Vol 62 (4b) ◽  
pp. 801-806 ◽  
Author(s):  
G. M. GUIDELLI ◽  
A. ISAAC ◽  
G. C. PAVANELLI
Keyword(s):  
New Species ◽  
Genital Pore ◽  
Paraná River ◽  
Generic Diagnosis ◽  
Infection Site ◽  
Parana River ◽  
Upper Paraná River ◽  
A New Species

A new species is of the genus Sanguinicola Plehn, 1905 described, Sanguinicola platyrhynchi n. sp., digenetic parasite of visceral cavity of Hemisorubim platyrhynchos (Valenciennes, 1840) from the floodplain of the upper Paraná River, Brazil. The species has been thus included because of the presence of separate dorsal genital pores, while differing from other species of the same genus mainly in digestive apparatus features, genital pore position, and infection site. Emendation of generic diagnosis is included.

A new species of Demidospermus Suriano, 1983 (Monogenea, Dactylogyridae) parasitic on Loricariichthys platymetopon Isbrücker et Nijssen (Loricariidae, Siluriformes) from the Upper Paraná River floodplain, Brazil

2010 ◽  
Vol 55 (1) ◽  
Author(s):  
Ana Ferrari-Hoeinghaus ◽  
Sybelle Bellay ◽  
Ricardo Takemoto ◽  
Gilberto Pavanelli
Keyword(s):  
New Species ◽  
Accessory Piece ◽  
Copulatory Organ ◽  
Paraná River ◽  
Eyes Absent ◽  
River Floodplain ◽  
Parana River ◽  
Upper Paraná River Floodplain ◽  
Upper Paraná River ◽  
Paraná River Floodplain

AbstractDemidospermus paranaensis sp. nov. is described from the gills of Loricariichthys platymetopon Isbrücker et Nijssen (Loricariidae, Siluriformes) from the Upper Paraná River floodplain, Brazil. This new species differs from other members of Demidospermus in the following features: tegument with annulations throughout trunk and peduncle, eyes absent, longer male copulatory organ (MCO) with ovate base. Demidospermus paranaensis sp. nov. is similar to its congenerics by having tandem gonads, a counterclockwise-coiled MCO, non-articulated groove-like accessory piece serving as a MCO guide, sinistral vaginal aperture, and V-shaped haptoral bars.

Two new species of Sciadicleithrum (Monogenea, Dactylogyridae) parasites of Neotropical cichlid fishes from the Paraná River, Brazil

2009 ◽  
Vol 54 (1) ◽  
Author(s):  
Fábio Yamada ◽  
Ricardo Takemoto ◽  
Sybelle Bellay ◽  
Gilberto Pavanelli
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
Copulatory Organ ◽  
Distal Portion ◽  
Paraná River ◽  
Dorsal Anchor ◽  
Cichlid Fishes ◽  
Parana River ◽  
Two New Species

AbstractTwo new species of Sciadicleithrum are described from the gills of Neotropical cichlid fishes collected from Paraná River, Brazil. Sciadicleithrum satanopercae sp. nov. is described from the gills of Satanoperca pappaterra and differs from congeners by having a dorsal anchor with the distal portion complex and the inner margin with a “denticulum” between shaft and point. Sciadicleithrum joanae sp. nov. is described from the gills of Crenicichla niederleinii and C. britskii collected from Paraná River. Sciadicleithrum joanae sp. nov. differs from congeners by having a male copulatory organ comprising about half a clockwise loop and a vaginal pore “bulb-shaped”.

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