scholarly journals Redescription of Hyphessobrycon flammeusMyers, 1924 (Ostariophysi: Characidae), a threatened species from Brazil

2014 ◽  
Vol 12 (2) ◽  
pp. 247-256 ◽  
Author(s):  
Fernando R. Carvalho ◽  
Guilherme C. de Jesus ◽  
Francisco Langeani
Keyword(s):  
Sexual Dimorphism ◽  
Threatened Species ◽  
Conservation Status ◽  
The Body ◽  
Phylogenetic Position ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Diagnostic Characters ◽  
Dark Stripe ◽  
Parana Basin

One of the most gorgeous colored and endangered Hyphessobryconspecies, H. flammeus Myers, is redescribed. Diagnostic characters of the species are two vertically elongated humeral spots, no caudal peduncle blotch, 5-8 maxillary teeth, caudal fin hyaline, and longitudinal dark stripe of the body absent. Sexual dimorphism is present, with males being more colored than females and having bony hooks in the anal and pelvic fins, which are dark in their terminal portions. Comments about its occurrence in the upper rio Tietê drainage (upper rio Paraná basin), its conservation status, and the phylogenetic position into Characidae context are also presented.

Hemiodus jatuarana, a new species of Hemiodontidae from the rio Trombetas, Amazon Basin, Brazil (Teleostei, Characiformes)

Zootaxa ◽  
2004 ◽  
Vol 546 (1) ◽  
pp. 1 ◽  
Author(s):  
FRANCISCO LANGEANI
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Branchial Arch ◽  
The Body ◽  
Dark Spot ◽  
Gill Rakers ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Dark Pigmentation ◽  
A New Species

Hemiodus jatuarana, a new species of the Hemiodontidae from Oriximin , rio Trombetas, Amazon Basin, Brazil, is described. The new species can be readily distinguished from its congeners by the presence of a horizontally elongated dark spot on the caudal peduncle, and by the absence of any other dark pigmentation pattern on the body. Hemiodus jatuarana is readily separated from H. immaculatus, another species without dark pigmentation on the body, by having 25 27 epibranchial and 36 37 ceratobranchial gill rakers on the first branchial arch, and caudal-fin lobes without longitudinal stripes, vs. 14 16 and 21 25 gill rakers, and a conspicuous longitudinal stripe on each caudal-fin lobe in H. immaculatus. The new species is only known from its type-locality, where it cooccurs with H. immaculatus.

scholarly journals Astyanax totae, a new characid species (Teleostei: Characidae) from the upper rio Iguaçu basin, southeastern Brazil

2005 ◽  
Vol 3 (3) ◽  
pp. 383-388 ◽  
Author(s):  
Carolina Ferreira Haluch ◽  
Vinícius Abilhoa
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Southeastern Brazil ◽  
Caudal Fin ◽  
Dark Stripe ◽  
Fin Rays ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species ◽  
Small Tributary

A new species of characid fish, Astyanax totae, is described from a small tributary in the upper drainage of the rio Iguaçu, Paraná basin, Brazil. The new species is distinct from most species of Astyanax by the vertically elongated humeral spot, slightly expanded above the lateral line to posterodorsal margin of opercle, followed by a midlateral dark stripe expanded from the humeral region to the median caudal-fin rays, maxilla with 2 to 5 teeth (usually 3) and 15 to 18 branched anal-fin rays.

Two new species of Corumbataia (Hypoptopomatinae: Loricariidae) from Rio Corrente, upper Rio Paraná basin, Brazil

Zootaxa ◽  
2018 ◽  
Vol 4483 (2) ◽  
pp. 317 ◽  
Author(s):  
GABRIEL S. C. SILVA ◽  
FABIO F. ROXO ◽  
CAMILA S. SOUZA ◽  
CLAUDIO OLIVEIRA
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Central Brazil ◽  
Two New Species ◽  
Dorsal Portion ◽  
Paraná Basin ◽  
Parana Basin

We describe two new species of Corumbataia from Central Brazil. The new species are known from Rio Corrente, a tributary of the upper Rio Paraná basin. Furthermore, the two species are distinguished from congeners, mainly by the presence of a broad naked area without plates or odontodes on the dorsal portion of the snout. Additionally, the two new species described here can be distinguished from each other by the caudal-peduncle depth, number of infraorbitals plates series and by the general color pattern of caudal fin. 

scholarly journals First record of Apistogrammoides pucallpaensis Meinken, 1965 (Perciformes, Cichlidae) for Brazil, in addition to fecundity information

2019 ◽  
Vol 31 ◽  
Author(s):  
Jomara Cavalcante de Oliveira ◽  
Jonas Alves de Oliveira ◽  
Danielle Pedrociane Cavalcante Rossato
Keyword(s):  
Aquatic Vegetation ◽  
Coastal Region ◽  
First Record ◽  
The State ◽  
The Body ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Black Stripe

Abstract Aim The objective of this work is to record the occurrence of Apistogrammoides pucallpaensis in Brazilian territory, since so far its distribution is restricted to Peru and Colombia. Methods The collections were carried out in the year of 2013, during the research of ichthyofauna of the region of Auati-Paraná, located in the Mamirauá Reserve in the state of Amazonas. In the floating aquatic vegetation was used net and on the coastal region rapichés. Apistogrammoides is the only one among Geophaginae that has 6-9 spines in the anal fin, while Apistogramma has 3-4. Results Note the presence of three evident mark on the caudal fin and presence of a black stripe on the side of the body that follows from the eye to the caudal peduncle feature thet differentiate the genre. Conclusions This work extends the distribution of A. pucallpaensis being the first record of the species for Brazil.

Pelvicachromis signatus and Pelvicachromis rubrolabiatus, two new cichlid species (Teleostei, Perciformes) from Guinea, West Africa

Zootaxa ◽  
2004 ◽  
Vol 454 (1) ◽  
pp. 1 ◽  
Author(s):  
ANTON LAMBOJ
Keyword(s):  
West Africa ◽  
Black Spot ◽  
Color Pattern ◽  
The Body ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Cichlid Species ◽  
Dorsal Fin ◽  
Black Spots ◽  
Vertical Bars

Pelvicachromis rubrolabiatus and P. signatus are described from Guinea. They differ from other members of Pelvicachromis, except P. humilis, in having two contiguous tubular infraorbital ossicles instead of three with a gap between the 2 nd and 3 rd and in displaying a color pattern of seven to eight dark vertical bars during certain behavioral situations. Pelvicachromis rubrolabiatus differs from P. humilis and P. signatus in having seven instead of eight vertical bars on the body and from P. signatus in having a lesser preorbital depth. Pelvicachromis signatus differs from P. humilis in the presence of characteristic black markings in the dorsal and caudal fin of males, a black spot on the caudal peduncle of females and occasionally one or two black spots in the female s dorsal fin.

scholarly journals A new species of Moenkhausia Eigenmann (Characiformes: Characidae) from the upper rio Machado at Chapada dos Parecis, rio Madeira basin, Brazil

2016 ◽  
Vol 14 (1) ◽  
Author(s):  
William M. Ohara ◽  
Manoela M. F. Marinho
Keyword(s):  
New Species ◽  
The Body ◽  
Caudal Peduncle ◽  
Anterior Portion ◽  
Caudal Fin ◽  
Fin Rays ◽  
Blue Eyes ◽  
A New Species ◽  
Rio Madeira

ABSTRACT A new species of Moenkhausia is described from the upper rio Machado at Chapada dos Parecis, rio Madeira basin, Rondônia State, Brazil. Among congeners, the new species is similar to Moenkhausia chlorophthalma, M. cotinho , M. lineomaculata , M. plumbea, and M. petymbuaba by having dark blotches on the anterior portion of the body scales, which are absent in the remaining species of the genus. The new speciesdiffers from aforementioned species by possessing blue eyes in life, 15-18 branched anal-fin rays, and a well-defined, round caudal-peduncle spot that does not reach the upper and lower margins of the caudal peduncle and does not extend to the tip of the middle caudal-fin rays.

scholarly journals Gephyrocharax torresi (Characiformes: Characidae: Stevardiinae), a new species from the río Cascajales basin, río Magdalena system, Colombia

2013 ◽  
Vol 11 (2) ◽  
pp. 275-284 ◽  
Author(s):  
James Anyelo Vanegas-Ríos ◽  
María de las Mercedes Azpelicueta ◽  
Juan Marcos Mirande ◽  
María Dolly García Gonzales
Keyword(s):  
New Species ◽  
The Body ◽  
Pectoral Fin ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Fin Ray ◽  
Fin Rays ◽  
Adipose Fin ◽  
Black Pigmentation ◽  
A New Species

A new species of Gephyrocharax is described from the río Cascajales basin, a tributary of the río La Colorada, río Magdalena system, Colombia. The new species is distinguished from its congeners, exceptG. melanocheir, by the absence of an adipose fin in most specimens and by the possession of a lateral branched pectoral-fin ray in males with a distal fan-shaped structure with minute bony hooks and a dark blotch or a few scattered dark brown chromatophores along its branches. The new species differs from G.melanocheir by the absence of an intense black pigmentation at the base of the anterior five dorsal-fin rays, the number of vertebrae (40-41vs. 38-39), the frontals contacting each other anterior to the epiphyseal bar in adults (vs. the absence of contact), the posterior margin of the mesethmoid straight in its central portion (vs. strongly concave at this point), the pouch scale of mature males reaching caudal-fin ray 11 or the area between caudal-fin rays 11 and 12 (vs. reaching only to caudal-fin ray 10 or the area between caudal-fin rays 9 and 10), the number of minute terminal branches of the lateral branched pectoral-fin ray of mature males (60-88 vs. 28-54), a longer black lateral stripe along the body in males (reaching to the base of the caudal-fin rays vs. reaching the middle of the length of the caudal peduncle), and the snout length (28.3-31.8% HLvs. 22.2-28.0% HL). The diagnosis ofGephyrocharax is modified to include species with the adipose fin variably present

scholarly journals Occurrence of the genus Amblyceps Blyth (Teleostei: Amblycipitidae) from the Indo-Bhutan streams of the Brahmaputra drainage of Assam, India

2014 ◽  
Vol 6 (1) ◽  
pp. 177-181
Author(s):  
Sewali Pathak ◽  
Mrigendra M. Goswami ◽  
Nripendra Nath Sarma
Keyword(s):  
The Body ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Eye Diameter ◽  
Orbital Space ◽  
Adipose Fin ◽  
Peduncle Length ◽  
General Appearance

Three species of the genus Amblyceps, namely, A. apangi, A. arunachalensis, A. mangois are described from Kanamakra and Langkhar (26°45′0″ ̶ 26°48′0″N and 90°35′0″ ̶ 90°40′0″E) hill streams of Chirang district of Assam. The torrent catfishes are distinguished within the genera on the basis of their general appearance of the body and the caudal fin structure, adipose fin, eye diameter, inter-orbital space, fold on lip and number of vertebrae. The caudal peduncle height for A. apangi (12.36 ̶ 12.73% SL), A. mangois (14.25 ̶ 15.36% SL) and A. arunachalensis(10.01 ̶ 11.42% SL), caudal peduncle length for A. apangi (20.29 ̶ 20.87% SL), A. arunachalensis (22.00 ̶ 22.11% SL) and A. mangois (19.09 ̶ 19.31% SL) and other taxonomic details of the congeners with their distributional status are discussed.

Neoplecostomus canastra, a new catfish (Teleostei: Siluriformes) species from upper Rio Paraná basin

Zootaxa ◽  
2017 ◽  
Vol 4294 (2) ◽  
pp. 226 ◽  
Author(s):  
FÁBIO F. ROXO ◽  
GABRIEL S. C. SILVA ◽  
CLÁUDIO H. ZAWADZKI ◽  
CLAUDIO OLIVEIRA
Keyword(s):  
New Species ◽  
Molecular Techniques ◽  
The Body ◽  
Head Length ◽  
Caudal Peduncle ◽  
Dorsal Fin ◽  
Interorbital Width ◽  
Paraná Basin ◽  
Adipose Fin ◽  
Parana Basin

In this study, we describe a new species of Neoplecostomus from córrego Tamborete, municipality of Capitólio, Minas Gerais state, upper rio Paraná basin. The new species is distinguished from its congeners by the presence of conspicuous dark spots all over the body. Moreover, the new species can be diagnosed by the absence of moderate keels along each lateral series of plates, presence of developed adipose fin, absence of enlarged, fleshy folds between dentaries, dorsal-fin spinelet larger than dorsal-fin spine, lacking enlarged odontodes along lateral margins of snout and along ridges before eyes, having reduced number of dentary teeth, having two irregular and conspicuous rows of large and transversally-flattened papillae, just posterior to dentary teeth, smaller mandibullary width/head length, smaller Interorbital width/mandibullary width, smaller number of lateral-line plates, higher and lower number of dentary teeth depending of the species compared, absence of a conspicuous sexual dimorphism, absence of a conspicuous horseshoe-shaped light blotch posterior to the supraoccipital, with a central dark area which rarely contacts the edge of the light area, smaller mandibulary width/head length, smaller Interorbital width/Mandibullary width and a greater Caudal peduncle length/Caudal peduncle depth. Furthermore, we used DNA barcoding techniques of 2% threshold criteria and GMYC model to distinguish the new species from its congeners. These molecular techniques were unable to distinguish the new species from N. langeanii and N. selenae from N. botucatu, that were differentiated using external morphology. 

scholarly journals Three new species of Hyphessobrycon (Characiformes: Characidae) from the upper rio Araguaia basin in Brazil

2003 ◽  
Vol 1 (1) ◽  
pp. 21-33 ◽  
Author(s):  
Flávio C. T. Lima ◽  
Cristiano R. Moreira
Keyword(s):  
New Species ◽  
Lateral Surface ◽  
Color Pattern ◽  
The Body ◽  
Ventral Region ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Dark Color ◽  
Three New Species ◽  
Pelvic Fin

Three new species of Hyphessobrycon (Characiformes: Characidae) are described from the upper rio Araguaia basin. Hyphessobrycon langeanii n. sp. is distinguished from all congeners by the presence of a well-defined, round humeral spot, a reticulate color pattern, a broad, horizontally-elongate caudal-peduncle blotch, and a relatively wide, faint midlateral dark stripe. Hyphessobrycon eilyos n. sp. is distinguished from all congeners by the absence of humeral and caudal spots; by the presence of numerous dark chromatophores on the lateral surface of the body, intensely concentrated on the ventral region from the pelvic-fin origin to the end of the caudal-fin base, dorsal, adipose, and caudal fins with carmine red pigmentation in life; and the presence of 7-11 maxillary teeth. Hyphessobrycon weitzmanorum n. sp. is distinguished from all congeners by the combination of the possession of two humeral spots and a general dark color pattern. These three new species, along with Creagrutus molinus (Characidae), Apareiodon tigrinus (Parodontidae), Aspidoras velites (Callichthyidae), an undescribed member of the Hypoptopomatinae (Loricariidae), Cnesterodon septentrionalis (Poeciliidae), and Simpsonichthys cholopteryx (Rivulidae), all of which are apparently endemic of the upper rio Araguaia, indicate that this area is a previously unrecognized area of endemism.

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