scholarly journals A new species of sexually dimorphic Pareiorhaphis Miranda Ribeiro, 1918 (Siluriformes: Loricariidae) from the rio Doce basin, Brazil

2007 ◽  
Vol 5 (4) ◽  
pp. 443-448 ◽  
Author(s):  
Edson H. L. Pereira ◽  
Fábio Vieira ◽  
Roberto E. Reis
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Minas Gerais ◽  
Sexually Dimorphic ◽  
The Family ◽  
A New Species

Pareiorhaphis nasuta, a new neoplecostomine catfish of the family Loricariidae is described. The species was collected from headwaters of the rio Matipó, tributary of the upper rio Doce basin in State of Minas Gerais, Brazil. The new species is readily diagnosed from all remaining congeners by the longer snout and by the smaller orbital diameter. The new species is the first representative of the genus Pareiorhaphis discovered in the rio Doce basin, thus expanding its geographic distribution. A phylogenetic diagnosis for Pareiorhaphis is presented.

Discovery of Metacrangonyx in inland groundwaters of Oman (Amphipoda: Gammaridea: Metacrangonyctidae)

Zootaxa ◽  
2012 ◽  
Vol 3335 (1) ◽  
pp. 54 ◽  
Author(s):  
DAMIÀ JAUME ◽  
RONALD VONK
Keyword(s):  
New Species ◽  
Coastal Plain ◽  
Arabian Peninsula ◽  
Mediterranean Area ◽  
Sexually Dimorphic ◽  
Sinai Peninsula ◽  
The Family ◽  
Amphipod Crustacean ◽  
The Caribbean ◽  
A New Species

A new species of metacrangonyctid amphipod crustacean is described from the Salalah coastal plain aquifer in south-western Oman. This is the easternmost record of the group, with representatives previously thought to span from Hispaniola in the Caribbean to the Sinai Peninsula in Egypt. Metacrangonyx dhofarensis sp. nov. is unique among metacrangonyctids in the display of a sexually dimorphic armature on pereiopod IV. In addition, its hypertrophied coxal plate IV, reduced plates I-III, coxal plate VII lacking anteroventral lobe, and telson longer than broad are also distinctive. The same holds for the proximal segment of peduncle of antennule, provided with two hypertrophied robust setae on dorsolateral margin. The mandibles of the new species are devoid of palp, a feature shared only with Metacrangonyx antennatus Messouli, El Alami, Coineau & Boutin, 2008. The presence of metacrangonyctids on the coasts of the Arabian Peninsula is probably the result of a vicariant event rather than of an episode of trans-Arabian continental dispersal by a Middle East ancestor. This is in accord with the presumed marine origin of the family and with the existence of a shallow water marine continuum between the current south-western Omani coast and the peri-Mediterranean area -where most species of metacrangonyctids are located - until approximately 16 Ma.

A new species and a new record of the spider genus Nesticus (Araneae, Nesticidae) from southern Brazil

Zootaxa ◽  
2017 ◽  
Vol 4231 (4) ◽  
pp. 564
Author(s):  
NARELLE ESTOL ◽  
EVERTON NEI LOPES RODRIGUES
Keyword(s):  
New Species ◽  
New Record ◽  
Neotropical Region ◽  
Minas Gerais ◽  
The State ◽  
South American ◽  
Southern Brazil ◽  
South American Species ◽  
The Family ◽  
A New Species

The spider family Nesticidae includes 233 species in 13 genera and is distributed almost worldwide (World Spider Catalog, 2016). However, the family is still poorly known in the Neotropical Region. The genus Nesticus Thorell, 1869 comprises 132 species and seven subspecies and was described based on N. cellulanus (Clerck, 1757), from Europe (World Spider Catalog, 2016). Meridional South American species of Nesticus were revised by Ott & Lise (2002). More recently, Faleiro & Santos (2011) described a new species from the state of Minas Gerais, Brazil and Torres et al. (2016) a new species from the province of Salta, Argentina. Nowadays, Nesticus is represented by six species in Brazil: Nesticus brasiliensis Brignoli, 1979; Nesticus brignolii Ott & Lise, 2002; Nesticus calilegua Ott & Lise, 2002; Nesticus ivone Faleiro & Santos, 2011; Nesticus potreiro Ott & Lise, 2002 and Nesticus taim Ott & Lise, 2002 (World Spider Catalog 2016). 

scholarly journals Expanding Waltillia: an addition to a previously monotypic genus of Bromeliaceae from the Espinhaço range, Brazil

Phytotaxa ◽  
2021 ◽  
Vol 491 (1) ◽  
pp. 1-11
Author(s):  
TALITA M. MACHADO ◽  
MARCO OTÁVIO D. PIVARI ◽  
LEONARDO M. VERSIEUX
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Minas Gerais ◽  
Similar Species ◽  
Monotypic Genus ◽  
Espinhaço Range ◽  
Minas Gerais State ◽  
Light Green ◽  
A New Species

We describe Waltillia itambana, a new species placed in the previously monotypic genus Waltillia, presenting as main differences from Waltillia hatschbachii features such as a water-impounding rosette, shorter and broader leaves, divergent non-secund flowers and the light-green petals. The species is, as far as known, restricted to Pico do Itambé State Park, in Minas Gerais, growing above 1500 m of elevation in the rupestrian grasslands, of the Diamantina Plateau, Espinhaço Range, Minas Gerais State. We compare W. itambana with other similar species that occur in the rupestrian grasslands and provide illustrations, information on geographic distribution, a map, and ecological and conservation observations on the new species.

Geometric morphometrics uncovers a new species of ponyfish (Teleostei: Leiognathidae: Equulites), with comments on the taxonomic status of Equula berbis Valenciennes

Zootaxa ◽  
2010 ◽  
Vol 2427 (1) ◽  
pp. 15 ◽  
Author(s):  
PROSANTA CHAKRABARTY ◽  
J.JEANETTE CHU ◽  
LUTHFUN NAHAR ◽  
JOHN S. SPARKS
Keyword(s):  
New Species ◽  
Taxonomic Status ◽  
Sexually Dimorphic ◽  
Light Organ ◽  
Geometric Morphometric ◽  
The Family ◽  
External Feature ◽  
Family Level ◽  
Male Specific ◽  
A New Species

A new species of Equulites is revealed using geometric morphometric techniques and is herein described. Based on features recovered in recent comparative analyses, members of Equulites have been diagnosed on the basis of internal and external male-specific traits related to their light-organ system (LOS; Sparks et al., 2005; Sparks, 2006; Sparks and Chakrabarty, 2007; Chakrabarty and Sparks, 2008). These sexually-dimorphic traits are hypothesized to allow males to signal to conspecific females in photic sexual displays using bacterially-generated luminescence (Woodland et al., 2002; Sasaki et al., 2003; Wada et al., 2005). The holotype and sole name-bearing type of Equulites leuciscus (BMNH 1858.4.21.243, 104.9 mm SL) is an adult female, and therefore lacks the diagnostic external feature of the LOS, a large, translucent flank patch, used to identify species in this genus. Geometric morphometric shape analysis of individuals ascribed to Equulites leuciscus, a traditionally widespread, "catch-all" taxon, reveals two discrete shape groups. Based on the results presented below, members of one of these groups correspond to a morphological variant that represents the new species (Equulites absconditus Chakrabarty & Sparks) described herein, whereas the other group corresponds to traditional E. leuciscus. In addition, the taxonomic status of Equula berbis Valenciennes, to which many female and poorly preserved specimens of the new species have erroneously been attributed, is reviewed and E. berbis is concluded to be a nomen dubium of uncertain placement beyond the family level.

First evidence of a bolosaurid parareptile in France (latest Carboniferous-earliest Permian of the Autun basin) and the spatiotemporal distribution of the Bolosauridae

2012 ◽  
Vol 183 (6) ◽  
pp. 495-508 ◽  
Author(s):  
Jocelyn Falconnet
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Spatiotemporal Distribution ◽  
The Family ◽  
First Occurrence ◽  
Tooth Apex ◽  
A New Species

Abstract A new species of Bolosauridae, Belebey augustodunensis, is described from fragmentary cranial material collected in the late Gzhelian-Asselian beds of the Autun basin, central France. Be. augustodunensis is one of the oldest bolosaurids and represents the first occurrence of the family in France. The dentition of this species is unique within Bolosauridae in exhibiting a progressive shift from a mesio– to a disto-lingual orientation of the tooth apex and lingual facet. Other features show that Be. augustodunensis belongs to the genus Belebey, although it lacks several specializations known in other species of the genus. A review of the valid bolosaurid taxa increases their stratigraphic and geographic distribution, in addition to the description of Be. augustodunensis. The distributions and diversification of Bolosauridae are briefly discussed.

Description of a new species of Heteroscorpion Birula, 1903 (Scorpiones, Heteroscorpionidae) from the Montagne des Français in extreme northern Madagascar

Zootaxa ◽  
2006 ◽  
Vol 1269 (1) ◽  
pp. 31 ◽  
Author(s):  
WILSON R. LOURENÇO ◽  
STEVEN M. GOODMAN
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Field Surveys ◽  
Number Of Species ◽  
Extensive Field ◽  
The Family ◽  
Distribution And Ecology ◽  
Three New Species ◽  
Extreme North ◽  
A New Species

The endemic Malagasy genus Heteroscorpion Birula, 1903, of the family Heteroscorpionidae was monotypic for a century with H. opisthacanthoides (Kraepelin, 1896). Extensive field surveys conducted over the last 15 years in the different bioclimatic regions of Madagascar have resulted in the collection of numerous scorpions, including specimens belonging to the genus Heteroscorpion. These collections led to the description of three new species, H. goodmani Lourenço, 1996, H. magnus Lourenço & Goodman, 2002, and H. raselimanana Lourenço & Goodman, 2004. In this paper another species new to science is described from the extreme north of the island and is presumed to be locally endemic. With this taxon, the number of species in the genus Heteroscorpion is now five, and its distribution covers numerous zones of the island, including humid and dry forests. Aspects of the geographic distribution and ecology of the different species are also commented upon.

A New Species of Smilax and a Key to All Species from Minas Gerais, Brazil

2009 ◽  
Vol 34 (1) ◽  
pp. 28-31 ◽  
Author(s):  
Regina Helena Potsch Andreata
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Minas Gerais ◽  
Abaxial Surface ◽  
Espírito Santo ◽  
Brazilian Species ◽  
Minas Gerais State ◽  
Espirito Santo ◽  
A New Species

A new species, Smilax pilosa, is described from the Serra do Brigadeiro State Park, in Minas Gerais State, Brazil. Smilax pilosa is the only Brazilian species of this genus having a dense indumentum covering the entire abaxial surface of the leaf. The new species is similar to Smilax muscosa Toledo but differs in that the latter has only a sparse indumentum restricted to the veins of the abaxial leaf face. The present study examines the affinity between the two species, reports the newly extended geographic distribution of Smilax muscosa into Espirito Santo State, and presents a key to the 22 species of Smilax that occur in Minas Gerais.

A new species of Solanum subg. Leptostemonum (Solanaceae) from the southern Espinhaço Range, Minas Gerais, Brazil

Phytotaxa ◽  
2016 ◽  
Vol 288 (3) ◽  
pp. 258 ◽  
Author(s):  
MARIA DE FÁTIMA AGRA ◽  
JOÃO RENATO STEHMANN
Keyword(s):  
New Species ◽  
Seed Dispersal ◽  
Geographic Distribution ◽  
Conservation Status ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
Espinhaço Range ◽  
Dispersal Mechanism ◽  
First Time ◽  
A New Species

Solanum mellobarretoi, a new species of Solanum subg. Leptostemonum (Solanaceae), is described and illustrated. It is endemic to Brazil and restricted to the southern Espinhaço Range in the State of Minas Gerais, southeastern Brazil. Solanum mellobarretoi is morphologically related to S. leptostachys Dunal, from which it differs by its irregularly lobed lanceolate to ovate-lanceolate leaves, irregularly lobed, ovate to lanceolate calyx lobes, larger flowers, and pentagonal rotate corolla with cuspidate lobes. Although known in other groups of Solanum, the explosive seed dispersal mechanism found in this species is described here for the first time for the spiny solanums. The affinities with S. leptostachys, geographic distribution, ecology and conservation status of S. mellobarretoi are discussed.

A new species of Heterocondylus (Eupatorieae, Asteraceae) from Serra do Brigadeiro, Minas Gerais, Brazil

Phytotaxa ◽  
2021 ◽  
Vol 524 (1) ◽  
pp. 53-58
Author(s):  
ISABEL T. F. V. LOPES ◽  
DANILO MARQUES ◽  
JIMI N. NAKAJIMA
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Endemic Species ◽  
Temperature Increase ◽  
Minas Gerais ◽  
South American ◽  
Campos De Altitude ◽  
Minas Gerais State ◽  
Asteraceae Family ◽  
A New Species

The southeastern Brazilian phytophysiognomy of “campos de altitude” is threatened by the global temperature increase, and because of it, many of its endemic species, such as those of the Asteraceae family, may disappear over the next years. This new species, which occurs in this type of environment, belongs to the genus Heterocondylus (Eupatorieae: Asteraceae), which comprises seven species, mainly with South American distribution. This genus is morphologically variable but all its species share the diagnostic characters, such as: enlarged basal style with variable indumentum, and cypselae with an asymmetrical carpopodium composed of cells with thickened walls. Heterocondylus penninervius is described as a new species from the “campos de altitude” in Serra do Brigadeiro, Araponga municipality, Minas Gerais state, Brazil. The species is recognized by its sessile leaves concentrated in the lower part of the stem, with narrow-elliptical to narrow-lanceolate blade and penninerved leaves, as well as broad capitula with white and pinkish phyllaries. This study provides the description, illustration, taxonomic affinities, flowering and fruiting period and geographic distribution of the species.

Andropogon saxicola (Poaceae: Andropogoneae), a new species from Brazil

Phytotaxa ◽  
2019 ◽  
Vol 397 (1) ◽  
pp. 83
Author(s):  
ANA ZANNIN ◽  
PEDRO LAGE VIANA ◽  
CASSIANO A. DORNELES WELKER ◽  
TARCISO S. FILGUEIRAS
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Related Species ◽  
Minas Gerais ◽  
Campo Rupestre ◽  
New Taxon ◽  
Ecological Preferences ◽  
Brazilian State ◽  
A New Species ◽  
Iucn Criteria

Andropogon saxicola, collected in rocky grasslands (campo rupestre) of the Brazilian state of Minas Gerais, is described, illustrated, and compared with putatively related species, such as A. campestris, A. carinatus, A. durifolius, and A. ingratus. According to the IUCN criteria, the new species is considered Endangered (EN). Comments on geographic distribution and ecological preferences of the new taxon are also provided.

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