A revision of the cis-andean species of the genus Brycon Müller & Troschel (Characiformes: Characidae)

Zootaxa ◽  
2017 ◽  
Vol 4222 (1) ◽  
pp. 1 ◽  
Author(s):  
FLÁVIO C.T. LIMA
Keyword(s):  
New Species ◽  
Species Complex ◽  
French Guiana ◽  
Conservation Status ◽  
River System ◽  
River Basins ◽  
River Systems ◽  
Current Conservation ◽  
Eastern Brazil ◽  
Coastal River

A revision of the cis-andean species of Brycon, with the exception of the Brycon pesu species-complex, is presented. Twenty-one Brycon species (including B. pesu) are recognized from cis-andean river systems: Brycon stolzmanni Steindachner, from the upper Río Marañon basin, Peru; Brycon coxeyi Fowler, from the Río Marañon basin, Ecuador and Peru; Brycon polylepis Moscó Morales, from the Lago de Maracaibo, Río Orinoco, upper rio Amazonas, and rio Tocantins basins, Venezuela, Colombia, Peru, and Brazil; Brycon coquenani Steindachner, from the upper Río Caroni, Río Orinoco basin, Venezuela; Brycon insignis Steindachner, from the rio Paraíba do Sul and small adjacent coastal river basins of eastern Brazil; Brycon vermelha Lima & Castro, endemic from the rio Mucuri basin, eastern Brazil; Brycon howesi new species, endemic from the rio Jequitinhonha basin, Brazil; Brycon dulcis new species, endemic from the rio Doce basin, eastern Brazil; Brycon ferox Steindachner, from several small coastal river systems, including the rio Mucuri basin in eastern Brazil; Brycon vonoi new species, from the rio Pardo basin and apparently also from a adjacent river system, the rio Una, in eastern Brazil; Brycon opalinus (Cuvier), from the headwaters of the rio Paraíba do Sul and rio Doce basins, eastern Brazil; Brycon nattereri Günther, from the headwaters of the upper rio Paraná, rio São Francisco, and upper rio Tocantins basins, Brazil; Brycon orthotaenia Günther, endemic from the rio São Francisco basin, Brazil; Brycon orbignyanus (Valenciennes), from the rio Paraná and rio Uruguai basins, Brazil, Paraguay, Argentina, and Uruguay; Brycon hilarii (Valenciennes), from the rio Paraguai, middle rio Paraná, and upper rio Amazonas basins, Brazil, Paraguay, Argentina, Peru, and Ecuador; Brycon whitei Myers & Weitzman, from the Río Orinoco basin in Colombia and Venezuela; Brycon amazonicus (Agassiz), from the Rio Amazonas and Río Orinoco basins, Brazil, Peru, Colombia, Bolivia, Venezuela, and Guyana; Brycon gouldingi Lima, endemic from the rio Tocantins basin, Brazil; Brycon melanopterus (Cope), from the western and central rio Amazonas basin, Brazil, Peru, Ecuador, and Colombia; and Brycon falcatus Müller & Troschel, widespread in the the rio Amazonas and Río Orinoco basins, and several guyanese river systems, in Brazil, Venezuela, Colombia, Peru, Bolivia, Guyana, Suriname, and French Guiana. All species are redescribed and illustrated, and a key to the species is provided. Comments on the diagnosis of the genus Brycon, the biogeography of the cis-andean species, and their current conservation status, are presented. 

scholarly journals A new species of Xyliphius, a rarely sampled banjo catfish (Siluriformes: Aspredinidae) from the rio Tocantins-Araguaia system

2010 ◽  
Vol 8 (1) ◽  
pp. 105-112 ◽  
Author(s):  
Carlos A Figueiredo ◽  
Marcelo R Britto
Keyword(s):  
New Species ◽  
Conservation Status ◽  
River System ◽  
Character State ◽  
New Taxon ◽  
Posterior Border ◽  
Lower Lip ◽  
Araguaia River ◽  
State Variation ◽  
A New Species

Xyliphius anachoretes, a new species of aspredinid catfish is described from the Tocantins-Araguaia River system. Xyliphius anachoretes is diagnosed by the presence of six developed retrorse serrae on posterior border of pectoral-fin spine, presence of papillae on the lower lip bearing minute branches, and only two dorsal procurrent rays. Comments about the informativeness of character-state variation among Xyliphius species and aspredinid related genera are furnished. Also, a brief discussion about conservation status of the new taxon is made.

scholarly journals Anemopaegma kawense (Bignoniaceae), a new species from the Kaw Mountain (French Guiana), with notes on related species and a key to the genus in the Guianas

2021 ◽  
Vol 154 (2) ◽  
pp. 296-306
Author(s):  
Olivier Lachenaud ◽  
Fabiana Firetti ◽  
Lúcia G. Lohmann
Keyword(s):  
New Species ◽  
French Guiana ◽  
Conservation Status ◽  
Iucn Red List ◽  
Herbarium Specimens ◽  
Similar Species ◽  
Centre Of Diversity ◽  
North Eastern ◽  
The Guianas ◽  
A New Species

Background and aims – The genus Anemopaegma (Bignoniaceae) includes around 47 species and has its centre of diversity in Brazil. Here, we describe and illustrate a new species from French Guiana, Anemopaegma kawense, and compare it to the two most similar species, A. foetidum and A. granvillei. We further assess the conservation status of all three species.Material and methods – Morphological descriptions are based on herbarium specimens deposited at BM, BR, CAY, INPA, K, MO, P, SPF, and U, and, in the case of the newly described species, also on field observations. The conservation status assessments follow the IUCN Red List criteria.Key results – Anemopaegma kawense differs from both A. foetidum and A. granvillei by its densely villose twigs, longitudinally plicate leaflets with secondary veins not or hardly prominent below, and tertiary veins impressed below. It is further separated from A. foetidum by the leaflets that are villose below and the calyx that is entirely pubescent outside. On the other hand, A. kawense differs from A. granvillei by the densely lepidote outer surface of the corolla, shorter petiolules, leaflets with midrib impressed above, shorter bracts and bracteoles, inflorescence peduncle exceeding the rachis, and pedicels densely puberulous, not lepidote or only sparsely so at the apex. This species is endemic to the Kaw Mountain in north-eastern French Guiana, where it grows in low stunted forest on laterite; it is assessed as Endangered according to the IUCN criteria. New descriptions are provided for A. granvillei, which is newly reported from Suriname, and for A. foetidum, which is newly reported from French Guiana; these two species are assessed as Endangered and Least Concern, respectively. Lectotypes are designated for A. maguirei, which is here synonymised with A. foetidum, and for A. umbellatum, another synonym of that species. A key to the 12 species of Anemopaegma occurring in the Guianas is presented.

Review of some species groups of the genus Oospila Warren, with descriptions of nine new species (Lepidoptera: Geometridae: Geometrinae)

Zootaxa ◽  
2018 ◽  
Vol 4497 (2) ◽  
pp. 151 ◽  
Author(s):  
AARE LINDT ◽  
AXEL HAUSMANN ◽  
JAAN VIIDALEPP
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Species Complex ◽  
French Guiana ◽  
Species Group ◽  
New Subspecies ◽  
Wing Patterns ◽  
Species Groups ◽  
Males And Females

The Neotropical geometrine genus Oospila Warren, 1897 includes seventy-nine species and was revised by Cook & Scoble (1995). The genus is distinctive in having a row of raised abdominal crests, which are composed of specialized, erect, metallic shining scales. This paper focuses on the integrative morphological and molecular delimitation of the smallest Oospila species. The wing patterns and genitalia structures of males and females are illustrated. Cook & Scoble (1995) distinguished 13 species groups within Oospila. We discuss the species of the Oospila flavilimes species group, the O. stigma species group and O. miccularia species group below, and separate the O. arpata species complex into a group of its own. Nine new species and two new subspecies are described in this paper: O. cristae sp. n. from Ecuador, O. falcata sp. n. from French Guiana, O. pallidaria boliviensis subsp. n. from Bolivia, and O. loreenae sp. n. from Bolivia (flavilimes species group), O. ehakernae sp. n. from Costa Rica, O. similiplaga bolarpata subsp. n. from Bolivia (arpata species group), O. brehmi sp. n. and O. bifida sp. n. both from Bolivia, O. moseri sp. n. from Brazil, O. absaloni sp. n. and O. pipa sp. n. both from Ecuador (miccularia species group). Oospila similiplaga (Warren) (stat. nov.) is raised here from synonymy with O. arpata (Schaus) and O. imula (Dognin) from synonymy with O. miccularia (Guenée), respectively. Oospila agnetaforslundae nom. nov. is proposed as a replacement name for Oospila marginata Schaus, 1912 (nec Oospila marginata Warren, 1897), raising it to species rank from synonymy of Oospila permagna (Warren, 1909). With this paper, the number of Neotropical Oospila species is raised to 88. 

scholarly journals Two new species of Astyanax (Ostariophysi: Characiformes: Characidae) from eastern Brazil, with a synopsis of the Astyanax scabripinnis species complex

2006 ◽  
Vol 4 (1) ◽  
pp. 53-60 ◽  
Author(s):  
Vinicius A. Bertaco ◽  
Carlos A. S. de Lucena
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Standard Length ◽  
Species Complex ◽  
Body Depth ◽  
Astyanax Scabripinnis ◽  
Interorbital Width ◽  
Eastern Brazil ◽  
Two New Species ◽  
Fin Rays

Two new species of Astyanax are described from eastern Brazil: A . microschemos from the córrego Palmital, rio Itapemirim drainage, Espírito Santo, and A . pelecus from the rio Pardo drainage, Bahia. Astyanax microschemos differs from its congeners by its shallower body depth, 26.9-29.7% of standard length, the presence of one vertically elongate humeral spot that extend above and below the lateral line, smaller interorbital width, 26.9-30.4% of head length, and the possession of 14-18 branched anal-fin rays. Astyanax pelecus differs from its congeners in the possession of only one humeral spot limited to the region dorsal to the lateral line, conspicuous, dark, midlateral body stripe extending from the upper margin of the opercle to the caudal-fin base, a shallower body depth, 26.7-34.8% of standard length, and the possession of 16-18 branched anal-fin rays, 38-39 scales in the lateral-line series, and four scales between the lateral line and the pelvic-fin origin. Astyanax microschemos has a massive head, short snout, usually smaller than the orbital diameter, shallow body depth, and vertically-elongate humeral spot that serve to include it in the A . scabripinnis species complex. A comparative synopsis of this complex is provided.

A new annual fish of the genus Simpsonichthys (Cyprinodontiformes: Cynolebiidae) from the upper Rio Jequitinhonha basin, Brazil

Zootaxa ◽  
2017 ◽  
Vol 4263 (1) ◽  
pp. 165 ◽  
Author(s):  
DALTON TAVARES BRESSANE NIELSEN ◽  
TIAGO CASARIM PESSALI ◽  
GUILHERME MOREIRA DUTRA
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Color Pattern ◽  
Pectoral Fin ◽  
Annual Fish ◽  
Caudal Fin ◽  
Eastern Brazil ◽  
Eye Diameter ◽  
Fin Length ◽  
A New Species

A new species of Simpsonichthys is described from the upper rio Jequitinhonha basin, Minas Gerais, eastern Brazil. It is diagnosed from all congeners by presenting an A-patterned frontal squamation. Additionally, males of the new species differs from all congeners by the color pattern of body, the color of iris, the absence of contact organs in the pectoral fin, presence of scales on anal-fin base, pectoral-fin length, caudal fin length, and eye diameter. Females of the new species can be diagnosed from remaining congeners by the pectoral-fin length. The conservation status of the new species is evaluated. Comments on the relationships of the new species within the genus Simpsonichthys are presented.

Simira robusta (Rubiaceae, Condamineeae), a new species from the Atlantic Rainforest of south-eastern Brazil

Phytotaxa ◽  
2017 ◽  
Vol 299 (1) ◽  
pp. 118
Author(s):  
LUCIANO FERREIRA MARGALHO ◽  
GEOVANE DE SOUZA SIQUEIRA ◽  
PIERO G. DELPRETE ◽  
MILTON GROPPO
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Atlantic Rainforest ◽  
Similar Species ◽  
Espírito Santo ◽  
South Eastern ◽  
Eastern Brazil ◽  
Espirito Santo ◽  
A New Species

Simira robusta (Rubiaceae), a new species from the Atlantic Rainforest of the Espírito Santo state, south-eastern Brazil, is here described and illustrated, and compared with similar species. It most resembles S. grazielae, from which it differs by the larger inflorescences, antrorse pubescent flowers and fruits, and by its larger fruits. Its habitat and conservation status are discussed. A key to the species of Simira from Espírito Santo state is provided.

Two new species of freshwater crayfish of the genus Faxonius (Decapoda: Cambaridae) from the Ozark Highlands of Arkansas and Missouri

Zootaxa ◽  
2018 ◽  
Vol 4399 (4) ◽  
pp. 491 ◽  
Author(s):  
JAMES W. JR. FETZNER ◽  
CHRISTOPHER A. TAYLOR
Keyword(s):  
New Species ◽  
Fourth Order ◽  
River System ◽  
Dorsal Side ◽  
The Other ◽  
Freshwater Crayfish ◽  
Undescribed Species ◽  
River Systems ◽  
Ozark Highlands ◽  
Two New Species

Two new species of freshwater crayfish are described from the Ozarks Plateau of northern Arkansas and southern Missouri. Both species are restricted to the mainstem of rocky streams that are at least fourth-order or greater in size. Recent genetic and morphological investigations of the coldwater crayfish, Faxonius eupunctus Williams, 1952, indicated that it was actually composed of several undescribed species. Faxonius eupunctus is herein restricted to just the Eleven Point River system. Faxonius roberti, new species is found in the mainstem of the Spring and Strawberry river systems in northern Arkansas. It differs from F. eupunctus by lacking a male Form-I gonopod with a distal spatulate mesial process, and presence of two spines on the dorsal side of the merus, where F. eupunctus typically has 1 spine. Faxonius wagneri, new species is known from a 54 mile (86 km) stretch of the Eleven Point River mainstem, ranging from just southeast of Greer, Missouri to just north of Birdell, Arkansas. Faxonius wagneri can be differentiated from both F. eupunctus and Faxonius roberti sp. nov. by using the male Form-I and Form-II gonopods, the shape of the chelae, and the female annulus ventralis. In F. wagneri, the terminal elements of the first pleopod are almost twice as long as those in F. eupunctus and F. roberti, with the tips of the appendage reaching the posterior base of the first perieopod when the abdomen is flexed forward, whereas, in the other two species, these elements only reach the base of the second pereiopod. The species also possesses two spines on the dorsal side of the merus of the first pereiopod, which helps distinguish it from F. eupunctus. 

Taxonomic remarks on the Centaurea aeolica (Asteraceae) species complex

Phytotaxa ◽  
2021 ◽  
Vol 483 (1) ◽  
pp. 9-24
Author(s):  
SALVATORE BRULLO ◽  
SALVATORE CAMBRIA ◽  
ALESSANDRO CRISAFULLI ◽  
GIANMARCO TAVILLA ◽  
SAVERIO SCIANDRELLO
Keyword(s):  
New Species ◽  
Species Complex ◽  
Conservation Status ◽  
Metamorphic Rocks ◽  
Ne Sicily ◽  
Points Of View ◽  
Taxonomical Revision ◽  
Well Differentiated ◽  
Aeolian Archipelago ◽  
A New Species

In the course of a taxonomical revision of Centaurea aeolica and the closely related C. pandataria, species confined to the Aeolian Archipelago (N Sicily) and Ventotene island (Pontian Archipelago, Latium) respectively, we describe a new species, named C. phalacrica, occurring on coastal metamorphic rocks near Messina (NE Sicily). These three species, well differentiated in several features, are examined from morphological, nomenclatural, chorological, and ecological points of view. For each species, a detailed iconography, consideration on their conservation status and identification keys are provided too. The lectotype of C. pandataria kept in the Florence Herbarium (FI) is designated.

Syzygium komatiense (Myrtaceae), a new species from South Africa

Phytotaxa ◽  
2016 ◽  
Vol 272 (1) ◽  
pp. 97 ◽  
Author(s):  
JAMES W. BYNG ◽  
FAREIZA R. PAHLADSINGH
Keyword(s):  
South Africa ◽  
New Species ◽  
Conservation Status ◽  
River System ◽  
Critically Endangered ◽  
Petiole Length ◽  
The South ◽  
Leaf Base ◽  
A New Species

A new species of Syzygium (Myrtaceae), S. komatiense, is described from the Komatipoort area of Mpumalanga, South Africa. This species is endemic to the Komati River system on the South Africa-Mozambique border and differs from any other species in the region by its combination of terete branchlets, petiole length, often asymmetric or oblique leaf base, few-flowered inflorescence, persistent bracts and bracteoles and pseudostalk absent. Syzygium komatiense is known only from the Komati River and merits the conservation status of Critically Endangered (CR C2a(i, ii); D).

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