Two new species of Isbrueckerichthys Derijst, 1996 (Siluriformes: Loricariidae) from the rio Paranapanema basin, Brazil

Two new Isbrueckerichthys species from Paranapanema river basin are described, I. saxicola and I. calvus, respectively from ribeirão Jacutinga and rio Taquara affluents. Both species present all diagnostic characters of the genus, and differ from their congeners by having bicuspid teeth (vs. simple teeth in I. alipionis), hypertrophied odontodes along the lateral margin of head (vs. hypertrophied odontodes only at the anterior portion of snout in I. epakmos) and longer pectoral-fin spine and shorter caudal peduncle length in relation to I. duseni. The new species can be distinguished from each other by number of odontodes in each minute abdominal platelet (more than six in I. saxicola vs. at most six in I. calvus); by the presence of a plated area under the three first plates of the lateral line in I. saxicola vs. its absence in I. calvus in which this region is naked; by a exposed portion of cleithrum bordering the entire margin of the opercular opening in I. saxicola vs. bordering just the superior portion in I. calvus; and by presenting the exposed surface of supraoccipital plain or slightly convex in I. saxicola vs. strongly convex with an area without odontodes on the center in I. calvus.

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Two new Hyphessobrycon (Characiformes: Characidae) species from Central Amazon basin, Brazil

Zootaxa ◽

10.11646/zootaxa.4318.1.5 ◽

2017 ◽

Vol 4318 (1) ◽

pp. 123 ◽

Cited By ~ 6

Author(s):

CRISTIANO R. MOREIRA ◽

FLÁVIO C.T. LIMA

Keyword(s):

New Species ◽

Amazon Basin ◽

The Body ◽

Dark Band ◽

Caudal Peduncle ◽

Anterior Portion ◽

Central Amazon ◽

Two New Species

Two new species of Hyphessobrycon, H. ericae and H. wosiackii, are described from the Amazon basin, Brazil. Both new species are distinguished from congeners by the coloration, composed by one humeral blotch merging with an anterior dark band restricted to the anterior portion of the body and the presence of a caudal peduncle blotch. Hyphessobrycon ericae is distinguished from H. wosiackii by presenting a humeral spot vertically elongated, with an overall appearance of an arrow, instead of an anteriorly rounded humeral spot.

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Two new species of Jupiaba (Characiformes: Characidae) from the rio Tapajós and rio Madeira drainages, Brazil, with an identification key to species of the genus

Zootaxa ◽

10.11646/zootaxa.2262.1.3 ◽

2009 ◽

Vol 2262 (1) ◽

pp. 53-68 ◽

Cited By ~ 6

Author(s):

ANDRÉ L. NETTO-FERREIRA ◽

ANGELA M. ZANATA ◽

JOSÉ L.O. BIRINDELLI ◽

LEANDRO M. SOUSA

Keyword(s):

New Species ◽

Lateral Line ◽

Color Pattern ◽

Dark Spot ◽

Caudal Peduncle ◽

Body Depth ◽

Two New Species ◽

Fin Rays ◽

Eye Diameter ◽

Rio Madeira

Two new species of Jupiaba Zanata are described from Brazil. Jupiaba iasy, new species, is described from rio Teles Pires and rio Jamanxim, tributaries of rio Tapajós, and from rio Aripuanã, in the rio Madeira drainage. It is distinguished from its congeners by its color pattern consisting of a single posteriorly displaced dark crescent-shaped humeral blotch, situated over the first 5 to 7 lateral line scales, and an inconspicuous dark spot at the end of caudal peduncle. It also differs from all remaining Jupiaba for the following combination of characters: 34-36 lateral line scales, 19–21 branched anal-fin rays, 8–10 predorsal scales arranged in a regular row, 6 horizontal series of scales above and 4 series below lateral line, body depth 32.3–36.1% of SL, and absence of filamentous rays in the first dorsal and anal-fin rays. Jupiaba paranatinga, new species, is described from rio Teles Pires, tributary of rio Tapajós. It is distinguished by having 34–35 lateral line scales, two vertically elongated humeral blotches, a conspicuous caudal spot at the end of the caudal peduncle, extending over 8–10 median caudal-fin rays, eye diameter 43.7–46.9% of HL, and relatively low body depth (31.3–35.5% of SL). Additionally, comments on the putative relationships of the new species with their congeners and an updated key to the species of the genus are provided.

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Description of two new species of Nannocharax Günther, 1867 (Teleostei: Characiformes: Distichodontidae) from the Cross River, Cameroon

Zootaxa ◽

10.11646/zootaxa.2028.1.1 ◽

2009 ◽

Vol 2028 (1) ◽

pp. 1-19 ◽

Cited By ~ 2

Author(s):

ANDREAS R. DUNZ ◽

ULRICH K. SCHLIEWEN

Keyword(s):

New Species ◽

Lateral Line ◽

Posterior Border ◽

Caudal Peduncle ◽

Cross River ◽

Body Coloration ◽

Fin Ray ◽

Two New Species ◽

Black Band ◽

The Cross

Two new species of the African characiform genus Nannocharax Günther, 1867 are described from the Cross River in Cameroon. Nannocharax zebra sp. nov. is distinguished from all other described Nannocharax species except N. schoutedeni Poll, 1939, N. latifasciatus Coenen & Teugels, 1989, N. ansorgii Boulenger, 1911 and N. procatopus Boulenger, 1920 by a shorter distance between the posterior border of the anus and the articulation of the first anal-fin ray (2.2–3.7 vs. 4.2–14.2% of SL). It differs from N. schoutedeni by having 39–43 vs. 36 or 37 lateral line scales, from N. latifasciatus by a deeper caudal peduncle (55.9–63.8% vs. 48.1–50.8% of SL), from N. ansorgii by having 12 or 13 rather than 9 anal-fin rays, and from N. procatopus by having a shorter caudal peduncle (11.3–15.2% vs. 18.0% of SL), and by having 39–43 rather than 36 lateral line scales. Nannocharax usongo sp. nov. is distinguished from all other Nannocharax species mainly in the distance from the border of anus to the articulation of first anal-fin ray (0.9–1.8 vs. 2.2–14.2% of SL) and by its body coloration consisting of 7–11 dark blotches along the lateral line often coalesced to one wide black band, and 7–12 small saddle-blotches along the dorsum.

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Two new species of Leporinus Agassiz, 1929 (Characiformes: Anostomidae) from tributaries of the lower Amazon basin in Brazil

Zootaxa ◽

10.11646/zootaxa.4178.1.4 ◽

2016 ◽

Vol 4178 (1) ◽

pp. 97 ◽

Cited By ~ 2

Author(s):

JOSÉ L. O. BIRINDELLI ◽

TULIO F. TEIXEIRA ◽

HERALDO A. BRITSKI

Keyword(s):

New Species ◽

Amazon Basin ◽

Phylogenetic Position ◽

Caudal Peduncle ◽

Diagnostic Features ◽

Anterior Portion ◽

Molecular Analyses ◽

Two New Species ◽

Available Information ◽

Pelvic Fin

Two new species of Leporinus (Characiformes, Anostomidae) are described. Both new species are diagnosed by having one dark blotch on midline of anterior portion of the flank (between opercle and pelvic-fin origin) surrounded by five to seven dark blotches; and a subinferior mouth with three premaxillary teeth. Leporinus multimaculatus, new species, is distributed in small and medium-sized tributaries of the rio Tocantins and rio Xingu basins, and also in the rio Jari and coastal drainages of Amapá state, whereas L. torrenticola, new species, is endemic to the rapids of the rio Xingu and its main tributaries. The number of scale rows around the caudal peduncle is the main feature distinguishing L. multimaculatus from L. torrenticola. Comments on the diagnostic features of the newly described species are provided. In addition, the phylogenetic position and generic assignment of the new species are discussed based on available information from recent morphological and molecular analyses.

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Two new species of Leporinus Agassiz, 1829 from Araguaia-Tocantins system, Amazon basin, Brazil (Ostariophysi, Anostomidae)

Brazilian Journal of Biology ◽

10.1590/s1519-69842009000100013 ◽

2009 ◽

Vol 69 (1) ◽

pp. 109-116 ◽

Cited By ~ 4

Author(s):

JC. Garavello ◽

GM. Santos

Keyword(s):

New Species ◽

Lateral Line ◽

Amazon Basin ◽

Cutting Edge ◽

Meristic Characters ◽

Caudal Peduncle ◽

Transversal Line ◽

Dorsal Fin ◽

Two New Species ◽

Adipose Fin

Two new species of genus Leporinus from the Araguaia-Tocantins system, Amazon, Brazil, are described. Leporinus unitaeniatus n. sp. is distinguished from the remaining species of this genus by the presence of a conspicuous longitudinal dark brown bar along the lateral line on the flanks, and Leporinus geminis n. sp. is distinguished by an inconspicuous dark bar combined with three large and vertically elongated brown blotches on the trunk; the first on the dorsal fin region, the second anterior to the adipose fin and the third on the caudal peduncle. Both are medium-sized species of the genus (up to 150 mm SL) and share the following combination of meristic characters: 4 teeth on each premaxillary and dentary; 40-43 scales in the lateral line, 6/I/5 scales on the transversal line, and 16 series of scales around the caudal peduncle. L. unitaeniatus n. sp. has a sub-terminal mouth and tooth series formed by incisive-like elongated teeth frontally turned and with only a straight cutting edge decreasing in size like the steps of stairs from the teeth pair of symphysis. Leporinus geminis n. sp. has a sub-inferior mouth and the tooth series shaped by large incisive-like teeth forming an arched cutting edge, decreasing in size from the symphysal pair of teeth.

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Two new species of Oxynoemacheilus from the Tigris drainage in Iraqi Kurdistan (Teleostei: Nemacheilidae)

Zootaxa ◽

10.11646/zootaxa.4238.1.5 ◽

2017 ◽

Vol 4238 (1) ◽

pp. 73 ◽

Cited By ~ 1

Author(s):

JÖRG FREYHOF ◽

YOUNIS SABIR ABDULLAH

Keyword(s):

New Species ◽

Lateral Line ◽

Pectoral Fin ◽

Caudal Peduncle ◽

Caudal Fin ◽

River Drainage ◽

Iraqi Kurdistan ◽

Two New Species

Two new species of Oxynoemacheilus are described from the Sirvan River drainage in Iraqi Kurdistan. Oxynoemacheilus gyndes, new species, is distinguished by having a very short lateral line, reaching behind the pectoral-fin base, no scales except on the posteriormost part of the caudal peduncle, a slightly emarginate caudal fin and no suborbital groove in males. Oxynoemacheilus hanae, new species, is distinguished by having a midlateral row of elongated blotches, isolated patches of dark-brown spots or blotches on lower flank, a deeply emarginate caudal fin and a suborbital groove in males.

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

Zootaxa ◽

10.11646/zootaxa.3608.5.6 ◽

2013 ◽

Vol 3608 (5) ◽

pp. 379-388 ◽

Cited By ~ 8

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.

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A new species of Yunnanilus (Cypriniformes: Nemacheilidae) from Sichuan, southwest China

Zootaxa ◽

10.11646/zootaxa.4532.1.9 ◽

2018 ◽

Vol 4532 (1) ◽

pp. 137

Author(s):

LI-NA DU ◽

MIAN HOU ◽

XIAO-YONG CHEN ◽

JUN-XING YANG

Keyword(s):

New Species ◽

Lateral Line ◽

Southwest China ◽

Pectoral Fin ◽

Caudal Peduncle ◽

Interorbital Width ◽

Eye Diameter ◽

Peduncle Length ◽

Fin Length ◽

A New Species

A new species of Yunnanilus is described from Tuojiang River, Sichuan, China. The new species, Yunnanilus jiuchiensis, can be distinguished from other species of Yunnanilus by the following combination of characters: processus dentiformis absent; body covered with scarce scales; lateral-line incomplete, as long as half the length of the pectoral-fin length, with 6–11 pores; eye diameter larger than interorbital width; and caudal-peduncle length less than its depth.

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Two new species of Leporinus Agassiz (Characiformes: Anostomidae) from eastern basins of Brazil, and redescription of L. melanopleura Günther

Neotropical Ichthyology ◽

10.1590/s1679-62252013000100002 ◽

2013 ◽

Vol 11 (1) ◽

pp. 9-23 ◽

Cited By ~ 7

Author(s):

Jose L. O. Birindelli ◽

Heraldo A. Britski ◽

Julio C. Garavello

Keyword(s):

New Species ◽

Lateral Line ◽

The Body ◽

Pectoral Fin ◽

Caudal Peduncle ◽

Coastal Rivers ◽

Two New Species ◽

Southern Bahia ◽

Adipose Fin

Two new species of Leporinus are described from coastal rivers of southern Bahia, Brazil. One of the new species has a bright red blotch immediately dorsal to the pectoral-fin origin in life, three dark blotches along the lateral line that distinctly increase in size posteriorly, and dark longitudinal lines between scale rows on the side of body. The second new species possesses a single broad dark midlateral stripe, encompassing one or two scale rows of depth on the body and centered on the scale row below the lateral line, a dark adipose fin, and a conspicuous dark blotch on the caudal peduncle. The first new species is known only from the rio de Contas and the second from the rio das Almas and rio Jiquiriçá. In addition, Leporinus melanopleura is redescribed based on a designated lectotype and additional specimens collected in the rio Una. Leporinus melanopleura has a single broad dark midlateral stripe, encompassing one or two scale rows of depth on the body, centered on the scale row below lateral line, a hyaline adipose fin (red in life), and an inconspicuous dark blotch on the caudal peduncle.

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Luciobarbus chelifensis and L. mascarensis, two new species from Algeria (Teleostei: Cyprinidae)

Zootaxa ◽

10.11646/zootaxa.4277.1.3 ◽

2017 ◽

Vol 4277 (1) ◽

pp. 32 ◽

Cited By ~ 3

Author(s):

AMINA BRAHIMI ◽

JÖRG FREYHOF ◽

ARNAUD HENRARD ◽

ROLAND LIBOIS

Keyword(s):

New Species ◽

Lateral Line ◽

Mediterranean Basin ◽

Freshwater Ecosystems ◽

Caudal Peduncle ◽

Morphometric Characters ◽

River Drainage ◽

Two New Species ◽

The Mediterranean Basin ◽

Molecular Characters

Cyprinids of the genus Luciobarbus are the most abundant and widespread fishes in most freshwater ecosystems in the Maghreb. In the Mediterranean basin of Morocco, Algeria and Tunisia, all species of Luciobarbus—with exception of L. guercifensis—are superficially very similar and are distinguished mostly by minor morphometric characters. Molecular characters distinguish all species well and nine species are recognised from the area, two of them described here. Luciobarbus chelifensis, from the Chelif River drainage in Algeria, is distinguished by having 41–43+1–2 lateral line scales and a very short anal fin (18–19% SL). Luciobarbus mascarensis, from the Macta River drainage in Algeria, is distinguished by having usually 41+1–2 lateral line scales, a long anal-fin (19–22%) and a short caudal peduncle (15–17% SL). An identification key is given for all African Mediterranean Luciobarbus species except for L. callensis and L. rifensis, which could not be distinguished.

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