scholarly journals Microlepidogaster arachas, a new species of hypoptopomatine catfish (Siluriformes: Loricariidae) from the upper rio Paraná basin, Brazil

Zootaxa ◽  
2013 ◽  
Vol 3608 (5) ◽  
pp. 379-388 ◽  
Author(s):  
FERNANDA O. MARTINS ◽  
BÁRBARA B. CALEGARI ◽  
FRANCISCO LANGEANI
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Neural Spine ◽  
Caudal Peduncle ◽  
Anterior Portion ◽  
Dorsal Fin ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species ◽  
Lateral Plates

Microlepidogaster arachas Martins, Calegari & Langeani, sp. nov., a new Hypoptopomatinae, is described from the upper rio Paraná basin. The new species is distinguished from M. longicolla and M. dimorpha by having the anterior portion of the compound supraneural plus first dorsal-fin proximal radial contacting the neural spine of the ninth vertebra. The new species differs from M. perforatus by having 18–29 dentary teeth; median series of lateral plates complete, reaching caudal-peduncle end, and continuous lateral line; and 20–24 mid-dorsal plates. Microlepidogaster arachas is further distinguished from its congeners by several other osteological features.

Microlepidogaster negomata, a new hypoptopomatine catfish (Loricariidae: Hypoptopomatinae) from Rio São Francisco basin, southeastern Brazil

Zootaxa ◽  
2017 ◽  
Vol 4276 (2) ◽  
pp. 233 ◽  
Author(s):  
FERNANDA O. MARTINS ◽  
ARIELI M. CHEROBIM ◽  
BRENO N. ANDRADE ◽  
FRANCISCO LANGEANI
Keyword(s):  
New Species ◽  
River Basins ◽  
Southeastern Brazil ◽  
Neural Spine ◽  
Pectoral Girdle ◽  
Anterior Portion ◽  
Dorsal Fin ◽  
Lateral Portion ◽  
A New Species ◽  
Lateral Plates

The number of species of Microlepidogaster recently increased considerably, the genus presently comprises six species distributed in the Paraná, São Francisco, and Jequitinhonha river basins. A new species of Microlepidogaster is herein described from the upper Rio São Francisco basin, which can be distinguished from all congeners by having two exclusive features within the genus: skin over swimbladder opening with two to five reduced unperforated platelets, and ventral laminar expansion of coracoid enclosing completely or almost completely the arrector fossa of the pectoral girdle. In addition, other features to recognize this species are: snout covered by many small plates bearing slender pointed odontodes; presence of iris operculum; exposure of pectoral girdle restricted to the lateral portion; presence of pectoral axillary slit only in juveniles; anterior portion of compound supraneural plus first dorsal-fin proximal radial contacting the neural spine of the eighth or ninth vertebra; first anal-fin pterygiophore covered only by skin; and uninterrupted, long median and mid-dorsal series of lateral plates. 

scholarly journals Iheringichthys syi (Siluriformes: Pimelodidae), a new pimelodid species from upper Paraná basin, Brazil

2012 ◽  
Vol 10 (1) ◽  
pp. 45-52
Author(s):  
María de las Mercedes Azpelicueta ◽  
Heraldo A. Britski
Keyword(s):  
New Species ◽  
Standard Length ◽  
Anterior Margin ◽  
Head Length ◽  
Dorsal Fin ◽  
Eye Diameter ◽  
Paraná Basin ◽  
Adipose Fin ◽  
Parana Basin ◽  
A New Species

We describe a new species of pimelodid catfish of the genus Iheringichthys from the upper Paraná basin, Brazil. Iheringichthys syi n. sp. is distinguished by the comparatively fine serration along the anterior margin of the pectoral-fin spine, an adpressed dorsal-fin remote from the adipose-fin origin, a large eye (23.2-31.2% of head length), narrow interorbital (16.2-23.0% of head length), long snout (42.0-51.0% of head length), long postorbital length (30.6-34.0% of head length), low adipose fin (4.8-7.8% of standard length), eye diameter 97.0-140.0% of interorbital length, and body with numerous, small dots irregularly scattered on flanks, especially marked on anterior half of flank.

Salmo tigridis, a new species of trout from the Tigris River, Turkey (Teleostei: Salmonidae) DAVUT TURAN (Turkey), MAURICE KOTTELAT (Switzerland) & YUSUF BEKTAŞ (Turkey)

Zootaxa ◽  
2011 ◽  
Vol 2993 (1) ◽  
pp. 23 ◽  
Author(s):  
DAVUT TURAN ◽  
MAURICE KOTTELAT ◽  
YUSUF BEKTAŞ
Keyword(s):  
New Species ◽  
Lateral Line ◽  
The Other ◽  
Caudal Peduncle ◽  
River Drainage ◽  
Dorsal Fin ◽  
Tigris River ◽  
Adipose Fin ◽  
A New Species

Salmo tigridis, new species, from the Tigris River drainage, Turkey, is distinguished from the other species of Salmo in Turkey and adjacent basins by having a greater number of scale rows between the end of the adipose-fin base and lateral line (19–20, vs. 12–17); a greater number of scale rows between dorsal-fin origin and lateral line (32–35, vs. 23–32); and a deeper and stouter caudal peduncle (its depth 11.5–12.6 % SL, vs. 9.3–11.5, except in S. cf. macrostigma).

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.

Nandus prolixus, a new species of leaf fish from northeastern Borneo (Teleostei: Perciformes: Nandidae)

Zootaxa ◽  
2006 ◽  
Vol 1328 (1) ◽  
pp. 51 ◽  
Author(s):  
PROSANTA CHAKRABARTY ◽  
RONALD G. OLDFIELD ◽  
HEOK H. NG
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Slender Body ◽  
Dark Spot ◽  
Caudal Peduncle ◽  
Body Depth ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species ◽  
Pectoral Fin Rays

Nandus prolixus sp. nov. is described from the Sepilok River drainage in Sabah, northeastern Borneo. This species is distinguished from its only Sundaic southeastern Asian congener, N. nebulosus, in having a longer, more produced snout (25.7–30.6% HL vs. 18.5–26.1), more lateralline scales (33–37 vs. 24–34), more scales below the lateral line (12 vs. 10–11), fewer spines in the dorsal fin (XIV vs. XV–XVI), and fewer pectoral-fin rays (15–16 vs. 17–19). It differs from N. nandus (from India) in having fewer lateral-line scales (33–37 vs. 42–55), fewer scales above the lateral line (4–5 vs. 6–7), fewer scales below the lateral line (12 vs. 14–18), more dorsal spines (XIV vs. XII–XIII), and the absence (vs. presence) of a distinct dark spot at the base of the caudal peduncle. It differs from N. oxyrhynchus (from mainland southeastern Asia) in having a more slender body (body depth 37.6–40.5% SL vs. 41.3–44.1) and a less steeply sloping predorsal profile.

scholarly journals A new species of Microglanis (Siluriformes: Pseudopimelodidae) from upper rio Paraná basin, Brazil

2005 ◽  
Vol 3 (4) ◽  
pp. 579-585 ◽  
Author(s):  
Oscar Akio Shibatta ◽  
Ricardo Cardoso Benine
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Color Pattern ◽  
Morphometric Characters ◽  
Spine Morphology ◽  
Caudal Fin Shape ◽  
Pectoral Spine ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species

Microglanis garavelloi, new species, collected in tributaries of rio Paranapanema and rio Tietê, is the first species of the genus described from upper rio Paraná basin. The new species can be distinguished from other species of Microglanis on morphometric characters, color pattern, caudal-fin shape, pectoral-spine morphology and lateral line development. Characters used specifically to distinguish M. garavelloi from M. cottoides (laguna dos Patos and rio Uruguay basins) and M. parahybae (rio Paraíba do Sul basin) include morphometrics, color pattern and pectoral-spine serration.

A new species of Microschemobrycon (Characiformes: Characidae) from Rio Xingu basin, Brazil

Zootaxa ◽  
2019 ◽  
Vol 4576 (2) ◽  
pp. 326
Author(s):  
WILLIAN M. OHARA ◽  
FERNADO C. JEREP ◽  
MARCEL R. CAVALLARO
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Dark Spot ◽  
Ventral Margin ◽  
Caudal Peduncle ◽  
Dorsal Fin ◽  
Dark Stripe ◽  
Lower Jaw ◽  
Restricted Distribution ◽  
A New Species

A new species of Microschemobrycon with a restricted distribution was recently discovered in the Rio Curuá, Rio Xingu basin, Pará, Brazil. Microschemobrycon cryptogrammus new species can be promptly distinguished from all congeners by the presence of a rounded, dark, conspicuous caudal-peduncle blotch and by a subjacent dark midlateral stripe visible in life. Additionally, the new species can be distinguished from all its congeners, except M. elongatus, by the presence of a longitudinal dark stripe along the lower jaw. The new species can be distinguished from M. elongatus by presenting lateral line with 36–38 pored scales, anterior and posterior nostrils coalescend, dark chromatophores concentrated along the ventral margin of the caudal peduncle and by the presence in life of a dark spot at the base of the dorsal-fin origin. 

Two new species of cascudinhos of the genus Otothyropsis (Siluriformes: Hypoptopomatinae) from the rio Paraná basin, Brazil

Zootaxa ◽  
2013 ◽  
Vol 3619 (2) ◽  
pp. 130-144 ◽  
Author(s):  
BÁRBARA B. CALEGARI ◽  
PABLO LEHMANN A. ◽  
ROBERTO E REIS
Keyword(s):  
New Species ◽  
Anterior Margin ◽  
Pectoral Fin ◽  
Caudal Peduncle ◽  
Two New Species ◽  
Paraná Basin ◽  
Parana Basin ◽  
Lateral Plates

Otothyropsis polyodon, sp. n., and O. biamnicus, sp. n., two new species of loricariid catfishes are described from the rio Paraná basin. Otothyropsis biamnicus and O. polyodon differ from two other Otothyropsis by having a longer caudal peduncle, middle series of lateral plates complete and with higher number of plates, and the anterior margin of the mesethmoid not covered by median rostral plate ventrally. The new species differ from each other in that O. polyodon have a longer pectoral-fin spine and a greater number of premaxillary and dentary teeth. Otothyropsis polyodon was collected in the rio Verde, tributary to the upper rio Paraná basin, and O. biamnicus is found in both the rio Iguaçu and rio Tibagi basins. A key for the species of Otothyropsis is presented and their relationships and geographical distributions are discussed.

scholarly journals A new spiny species of Hypostomus Lacépède (Loricariidae: Hypostominae) from thermal waters, upper rio Paraná basin, central Brazil

2014 ◽  
Vol 12 (4) ◽  
pp. 729-736 ◽  
Author(s):  
Fernanda O. Martins ◽  
Francisco Langeani ◽  
Cláudio H. Zawadzki
Keyword(s):  
New Species ◽  
Thermal Waters ◽  
Caudal Peduncle ◽  
Water Stream ◽  
Central Brazil ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species

A new species of Hypostomus is described from the rio Quente, rio Paranaíba drainage, in the upper rio Paraná basin in central Brazil. The rio Quente is a peculiar small and shallow fast water stream with water temperatures around 34ºC. The new species is distinguished from all congeners by having the five lateral series of plates with hypertrophied odontodes not aligned in rows and more conspicuous on flanks of caudal peduncle of the larger specimens. The new species is only known from the rio Quente.

New species of Enchodus (Pisces: Enchodontoidei) from the lower Cenomanian of Ein-Yabrud, Israel

1989 ◽  
Vol 63 (3) ◽  
pp. 356-364 ◽  
Author(s):  
Yael Chalifa
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Systematic Position ◽  
Neural Spine ◽  
Generic Diagnosis ◽  
Caudal Peduncle ◽  
A New Species ◽  
Front Tooth

A new species, Enchodus brevis (Enchodontoidei: Enchodontidae), is described from lower Cenomanian beds in Ein-Yabrud, near Jerusalem. The species is characterized by the following features: the shortest enchodontid body; an ectopterygoid bearing one smooth canine terminal tooth; barbed dentary teeth; a huge front tooth of dentary with two anterior cutting edges; two supraneurals; second preural vertebra without a neural spine; and absence of lateral line scales except for a long hook-like terminal scale at the caudal peduncle. The systematic position of the new species suggests the emendment of the generic diagnosis.

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