Oxynoemacheilus shehabi, a new nemacheilid loach from the upper Orontes in southern Syria (Teleostei: Nemacheilidae)

Zootaxa ◽  
2021 ◽  
Vol 4908 (4) ◽  
pp. 571-583
Author(s):  
JÖRG FREYHOF ◽  
MATTHIAS F. GEIGER
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Molecular Data ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Coi Mtdna

Oxynoemacheilus shehabi, new species, is described from the upper Orontes in southern Syria. It is distinguished from other Oxynoemacheilus species in the Levant by possession of a complete lateral line, a deeply emarginate caudal fin, a narrow caudal peduncle, a suborbital groove in male individuals, a well-developed pelvic axillary lobe, and 5–7 dark-brown bars on the flank. Molecular data suggest that the new species is characterised by a minimum K2P distance of 3.8% to O. “seyhanicola” in the COI mtDNA barcode region.  

Oxynoemacheilus sarus, a new nemacheilid loach from the lower Ceyhan and Seyhan in southern Anatolia (Teleostei: Nemacheilidae)

Zootaxa ◽  
2021 ◽  
Vol 4964 (1) ◽  
pp. 123-139
Author(s):  
JÖRG FREYHOF ◽  
BARAN YOĞURTÇUOĞLU ◽  
CÜNEYT KAYA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Molecular Data ◽  
Colour Pattern ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Coi Mtdna ◽  
Fin Ray ◽  
Molecular Characters

Oxynoemacheilus sarus, new species, is described from the lower Ceyhan and Seyhan drainages in southern Anatolia. It is distinguished from other Oxynoemacheilus species in Cilicia (including the Göksu, Seyhan and Ceyhan drainages) by possession of a series of irregularly shaped midlateral blotches, 3–5 dark-brown bands on the caudal fin, a complete lateral line, a forked caudal fin (shortest middle caudal-fin ray is 56–70% of longest ray of the upper caudal-fin lobe), the caudal peduncle depth 1.4–1.8 times in its length, and a suborbital groove in male individuals. The new species occurs in sympatry with superficially similar O. seyhanicola and O. evreni, and is distinguished by colour pattern as well as morphometric and molecular characters. Molecular data suggest that the closest relatives to the new species in our dataset are O. euphraticus and O. shehabi, which is characterised by a minimum K2P distance of 3.6% and 3.8%, respectively, in the COI mtDNA barcode region.

Oxynoemacheilus zarzianus, a new loach from the Lesser Zab River drainage in Iraqi Kurdistan (Teleostei: Nemacheilidae)

Zootaxa ◽  
2017 ◽  
Vol 4273 (2) ◽  
pp. 258 ◽  
Author(s):  
JÖRG FREYHOF ◽  
MATTHIAS GEIGER
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Lateral Line ◽  
Posterior Part ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
River Drainage ◽  
Posterior Process ◽  
Iraqi Kurdistan

Oxynoemacheilus zarzianus, new species, is described from the Lesser Zab River drainage, a tributary of the lower Tigris. It is distinguished from other Oxynoemacheilus species in the Tigris drainage by having a slightly emarginate caudal fin, no suborbital groove in males, a complete lateral line, the posterior process of the bony air-bladder capsule directed posteriorly, the flank and posterior part of back covered by scales, short barbels and a deep caudal peduncle. It is the fourth Oxynoemacheilus species known from the Lesser Zab drainage, where such loaches seem to be highly isolated in headwaters. Oxynoemacheilus species diversity in the Euphrates and Tigris drainage is exceptional high. Today 22 species are known from the entire Euphrates and Tigris drainage and 15 from the Tigris drainage alone. 

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

Zootaxa ◽  
2017 ◽  
Vol 4238 (1) ◽  
pp. 73 ◽  
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. 

Squalius kottelati, a new cyprinid species (Teleostei: Cyprinidae) from Orontes River, Turkey

Zootaxa ◽  
2009 ◽  
Vol 2270 (1) ◽  
pp. 53-62 ◽  
Author(s):  
DAVUT TURAN ◽  
B. TOGAY YILMAZ ◽  
CÜNEYT KAYA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Gill Arch ◽  
The Other ◽  
Gill Rakers ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Dark Stripe ◽  
Lower Jaw ◽  
Fin Length

Squalius kottelati, new species, is described from the Orontes, Ceyhan and Seyhan rivers in Turkey. It belongs to the S. lepidus group, characterized by a projecting lower jaw. It is distinguished from the other species of the genus Squalius in Turkey and adjacent basins by having a conspicuous broad, dark stripe on the upper part of the flank, from the head to the end of the caudal peduncle (vs. absent or very faintly marked, except S. lepidus). It differs from S. lepidus by having a longer head (28.3–30.9, vs. 25.3–27.3 % SL), fewer lateral-line scales (45–47, vs. 48–49) and fewer gill rakers on the first gill arch (9–10, vs. 11–13). It differs from S. anatolicus by having more scales in the lateral line (45–47,mode 46 vs. 43–45, mode 44); a longer caudal fin (length of upper lobe 20.3–22.5, vs. 15.8–19.0 % SL).

Oxynoemacheilus phasicus, a new nemacheilid loach from the eastern Black Sea basin with some remarks on other Caucasian Oxynoemacheilus (Teleostei: Nemacheilidae)

Zootaxa ◽  
2021 ◽  
Vol 4952 (1) ◽  
pp. 135-151
Author(s):  
JÖRG FREYHOF ◽  
CÜNEYT KAYA ◽  
GIORGI EPITASHVILI ◽  
MATTHIAS F. GEIGER
Keyword(s):  
New Species ◽  
Molecular Analysis ◽  
Black Sea ◽  
Morphological Characters ◽  
Molecular Data ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Mtdna Coi ◽  
River Drainages

Oxynoemacheilus phasicus, new species, is described from the Rioni and Enguri River drainages in Georgia. It is distinguished from other Oxynoemacheilus species in the O. brandtii group by a mottled or marbled flank pattern in adults, a slightly emarginate caudal fin, and a deep caudal peduncle. Molecular data suggest that the new species is characterized by a minimum K2P distance of 7.5% from O. brandtii from the Kura drainage in the mtDNA COI barcode region. Oxynoemacheilus brandtii and O. elsae are re-diagnosed. A very slender Oxynoemacheilus from the Aras drainage clusters as sister to O. elsae in our molecular analysis and not with O. brandtii from the Kura River. However, it is identified as O. brandtii as it is indistinguishable from this species in morphological characters.  

scholarly journals A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, Peru

2007 ◽  
Vol 5 (3) ◽  
pp. 251-257 ◽  
Author(s):  
Vinicius A. Bertaco ◽  
Luiz R. Malabarba ◽  
Max Hidalgo ◽  
Hernán Ortega
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Color Pattern ◽  
Lower Half ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Fin Ray ◽  
Fin Rays ◽  
Black Band ◽  
A New Species

A new characid species, Hemibrycon divisorensis, is described from the río Ucayali drainage, Loreto, Peru. The new species is distinguished from all Hemibrycon species by the presence of a wide black asymmetrical spot covering base of caudal-fin rays and extending along entire length of caudal-fin rays 9 to 12-13 (except from H. surinamensis), and a black band in the lower half of the caudal peduncle extending from the region above the last anal-fin rays to the caudal-fin base. Furthermore, it is distinguished from most species of the genus by the number of scale rows below the lateral line (4-5 vs 5-9), except H. jabonero, H. microformaa, H. orcesi, and H. surinamensis. It differs from these species by scale and fin ray counts and color pattern. The lack of a supraorbital in Hemibrycon species is discussed and confirmed.

Paraschistura makranensis, a new loach from the Jegin River drainage in southern Iran with comments on P. ilamensis and P. pasatigris (Teleostei: Nemacheilidae)

Zootaxa ◽  
2019 ◽  
Vol 4668 (2) ◽  
pp. 258-270
Author(s):  
SOHEIL EAGDERI ◽  
HAMED MOUSAVI-SABET ◽  
JÖRG FREYHOF
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Slender Body ◽  
Pairwise Distance ◽  
Colour Pattern ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
River Drainage ◽  
Southern Iran

Paraschistura makranensis, new species, is described from the Jegin River drainage in southern Iran. It is distinguished from its congeners in Iran by having a plain brown or slightly mottled colour pattern on the flanks, a very slender body with a relatively short head, a complete lateral line extending almost to the caudal-fin base, the caudal peduncle covered by scales, and a suborbital flap in males. Paraschistura makranensis is distinguished from P. bampurensis and P. hormuzensis, its closest relatives in our dataset, by an uncorrected-pairwise distance based on the COI data of 4.0 and 5.4%, respectively. We treat Paraschistura pasatigris as a synonym of P. ilamensis. 

scholarly journals Hyphessobrycon natagaima (Characiformes: Characidae) a new species from Colombia, with a key to the Magdalena Basin Hyphessobrycon species

Caldasia ◽  
2015 ◽  
Vol 37 (1) ◽  
pp. 221 ◽  
Author(s):  
Carlos A. García-Alzate ◽  
Donald C. Taphorn ◽  
Cesar Roman-Valencia ◽  
Francisco A. Villa-Navarro
Keyword(s):  
New Species ◽  
River Basin ◽  
Lateral Line ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Pectoral Fins ◽  
Fin Rays ◽  
Magdalena River ◽  
A New Species ◽  
Pelvic Fin

<p>A new species, Hyphessobrycon natagaima, is described from the upper Magdalena River Basin in Colombia. It differs from all other species of Hyphessobrycon with a dark lateral stripe inhabiting the Magdalena River Basin: H. poecilioides, H. proteus and H. ocasoensis, by having eight to twelve pored lateral-line scales (vs. 14-26); four scales between the lateral line and the pelvic-fin insertions (vs. five or six); one tooth on the maxilla (vs. zero in H. poecilioides, and two to five in H. proteus; except H. ocasoensis, with one), a dark, interrupted, lateral stripe that is not in contact with the caudal peduncle spot (vs. absence of caudal spot in H. poecilioides, lateral stripe continued that is in contact with the caudal peduncle spot in H. ocasoensis). It has a rhomboid shaped caudal-peduncle spot that continues on to middle caudal-fin rays (vs. absence of caudal peduncle spot in H. poecilioides and caudal peduncle spot round and not continued on to middle caudal-fin rays in H. ocasoensis); and presence of hooks on all fins in mature males (vs. males with hooks on anal, pelvic and pectoral fins). Hyphessobrycon natagaima differs from H. ocasoensis, in addition to the above characters, by having four scale rows between the lateral line and the anal-fin origin (vs. six); three or four scale rows between the lateral line and the pelvic-fin insertions (vs. six); ten or eleven predorsal scales (vs. nine); i,9,i dorsal-fin rays (vs. ii,8,i); 18-20 branched anal-fin rays (vs. 21-22) and eleven branched pectoral-fin rays (vs. twelve). A key for the identification of Hyphessobrycon species present in the Magdalena River Basin is provided.</p>

scholarly journals Jupiaba citrina, a new species from rio Aripuanã, rio Madeira basin, Amazonas and Mato Grosso States, Brazil (Characiformes: Characidae)

2009 ◽  
Vol 7 (4) ◽  
pp. 513-516 ◽  
Author(s):  
Angela M. Zanata ◽  
Willian M. Ohara
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Median Line ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Posterior Portion ◽  
Mato Grosso ◽  
Longitudinal Line ◽  
A New Species ◽  
Rio Madeira

A new species of Jupiaba Zanata is described from tributaries of the rio Aripuanã, rio Madeira basin, Amazonas and Mato Grosso States, Brazil. The new species can be diagnosed from its congeners (except J. abramoides, J. anteroides, and J. poranga) by having two vertically-elongated humeral blotches, the anterior usually with a darker median portion forming an horizontally-elongated trace pointed anteriorly, and a well defined dark longitudinal line extending from the second humeral blotch to the caudal peduncle. The new species differs from J. abramoides, J. anteroides, and J. poranga by having an elongated blotch over caudal peduncle that extends to the distal tip of the caudal-fin median rays. Also, it can be distinguished from most congeners by the combination of relatively high number of lateral line scales, predorsal median line without a series of scales, dentary teeth decreasing abruptly in size towards posterior portion, and presence of a larger central teeth cusp.

scholarly journals Redescription of Astyanax goyacensis Eigenmann, 1908 (Ostariophysi: Characiformes: Characidae)

2009 ◽  
Vol 7 (3) ◽  
pp. 371-376 ◽  
Author(s):  
Valdener Garutti ◽  
Francisco Langeani
Keyword(s):  
Lateral Line ◽  
Species Complex ◽  
Color Pattern ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Black Stripe ◽  
Conspicuous Feature ◽  
Fin Rays ◽  
Shape Pattern ◽  
Eye Diameter

Astyanax goyacensis Eigenmann, 1908 is redescribed based on the holotype and 25 topotypes. The species belongs to the A. bimaculatus species complex, sharing with those species a black, horizontally ovate, humeral spot (the most conspicuous feature of this complex), two diffuse vertical brown bars in the humeral area (the first through humeral spot and the second 2-3 scales behind), and black medium caudal-fin rays. Furthermore, A. goyacensis possesses a black stripe extending along midlateral body portion, more conspicuous in alcohol preserved specimens. These characteristics allow its inclusion in the putative "black lateral stripe" sub-group of A. bimaculatus species complex. From the species of this complex it differs by the black lateral stripe shape, pattern of chromatophores on the flank, coloration of the caudal fin, scales on the lateral line, branched rays on anal fin, eye diameter, and caudal peduncle depth. Comments about the color pattern in Astyanax bimaculatus species complex are added.

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