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 Morphological and molecular data reveal a new genus of the tribe Issini from Southern China (Hemiptera, Fulgoromorpha, Issidae)

ZooKeys ◽  
2018 ◽  
Vol 766 ◽  
pp. 51-61 ◽  
Author(s):  
Menglin Wang ◽  
Aimin Shi ◽  
Thierry Bourgoin
Keyword(s):  
New Species ◽  
Molecular Analysis ◽  
New Genus ◽  
Southern China ◽  
Morphological Characters ◽  
Molecular Data ◽  
Sichuan Province ◽  
Chongqing Municipality ◽  
Morphological And Molecular Data ◽  
A New Species

A new genusSinonissusgen. n.of the tribe Issini (Issidae, Issinae) with a new speciesSinonissusbrunetussp. n.from Chongqing municipality and Sichuan Province, China are described. Barcode of the species is provided. A molecular analysis combined with morphological characters confirms its placement into the Issini. Distribution of this new genus in the Oriental realm is briefly discussed in regard of other Issinae taxa in China.

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 nasreddini, a new nemacheilid loach from Central Anatolia (Teleostei: Nemacheilidae)

Zootaxa ◽  
2021 ◽  
Vol 4974 (1) ◽  
pp. 135-150
Author(s):  
BARAN YOĞURTÇUOĞLU ◽  
CÜNEYT KAYA ◽  
JÖRG FREYHOF
Keyword(s):  
New Species ◽  
Morphological Character ◽  
Molecular Data ◽  
Slender Body ◽  
Central Anatolia ◽  
Caudal Fin ◽  
Mtdna Coi ◽  
Fin Ray

Oxynoemacheilus nasreddini, new species, from Lake Akşehir, Eber, Eğirdir, and Ilgın basins in Central Anatolia is distinguished from other species of Oxynoemacheilus in Central Anatolia by having irregularly shaped blotches on flank; 2–4 dark-brown bands on caudal fin; a slender body, and an emarginate caudal fin in which the shortest middle caudal-fin ray is 76–91% of the longest ray of the upper caudal-fin lobe. Molecular data suggest that the new species is closely related to O. mediterraneus from the Aksu and Köprüçay drainages. Although the two species are separated by only a minimum K2P distance of 1.2% in the mtDNA COI barcode region, they are well distinguished morphologically. The situation is complicated by loaches from Lake Eğirdir basin that are identified as O. nasreddini by their morphological character states but are only distinguished from O. mediterraneus by a minimum K2P distance of 0.2% in the mtDNA COI barcode region. 

A new species of the genus Kodaianellissus Wang, Bourgoin & Zhang (Hemiptera: Issidae) with morphological and molecular data

Zootaxa ◽  
2020 ◽  
Vol 4731 (2) ◽  
pp. 270-274
Author(s):  
KAMRAN SOHAIL ◽  
WEIJIAN HUANG ◽  
YALIN ZHANG
Keyword(s):  
New Species ◽  
Molecular Analysis ◽  
Male Genitalia ◽  
First Record ◽  
Morphological Characters ◽  
Molecular Data ◽  
Morphological And Molecular Data ◽  
A New Species

Kodaianellissus gibbusis sp. nov. is described from Rawlakot, Azad Jammu & Kashmir (Pakistan), which is first record of the genus Kodaianellissus Wang, Bourgoin & Zhang, 2017 from the country. Morphological characters including male genitalia structure are described and illustrated. A checklist and key to all species of Kodaianellissus are provided. A molecular analysis with morphological characters indicates its placement into the Kodaianellissus. 

scholarly journals A new genus of Neotropical rheophilic catfishes, with four new species (Teleostei: Siluriformes: Pseudopimelodidae)

2017 ◽  
Vol 15 (2) ◽  
Author(s):  
Oscar Akio Shibatta ◽  
Richard P. Vari
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
New Genus ◽  
Morphological Characters ◽  
The Body ◽  
Dark Band ◽  
South American ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Flowing Waters

ABSTRACT Rhyacoglanis, a new genus of the South American freshwater catfish family Pseudopimelodidae is described from cis-Andean portions of the continent. Rhyacoglanis is distinguished from other genera of the family by three synapomorphies: presence of a light blotch on the cheek; a connection between the middle of the dark caudal-fin stripe and the dark caudal-peduncle pigmentation; and 30-35 total vertebrae. Species of Rhyacoglanis are rheophilic and strongly associated with rapids and other swift-flowing waters. A phylogenetic analysis based on 41 morphological characters yields a hypothesis of monophyly of the Pseudopimelodidae and Rhyacoglanis. Pimelodus pulcher Boulenger, 1887, from the western Amazon basin is designated as type-species of the new genus and redescribed. Four new species are described: Rhyacoglanis annulatus, from the río Orinoco basin, with a nearly ringed dark band on the caudal peduncle, and a larger distance between anus and anal-fin origin; R. epiblepsis, from the rio Madeira basin, with numerous dark spots scattered on the body, and rounded caudal-fin lobes; R. paranensis, from the upper rio Paraná basin, with three distinct dark bands on the body, and 31-33 total vertebrae; and R. seminiger, from the rio Juruena basin, with subdorsal and subadipose dark bands fused anteroposteriorly, and a separate dark band on the caudal peduncle.

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.

New species and findings of Pagastia Oliver (Diptera: Chironomidae: Diamesinae) from Central Asia, with DNA barcoding of known species of the genus

Zootaxa ◽  
2021 ◽  
Vol 4951 (3) ◽  
pp. 559-570
Author(s):  
EUGENYI A.  MAKARCHENKO ◽  
ALEXANDER A. SEMENCHENKO ◽  
DMITRY M. PALATOV
Keyword(s):  
New Species ◽  
Central Asia ◽  
Cytochrome Oxidase ◽  
Phylogenetic Trees ◽  
Morphological Characters ◽  
Molecular Data ◽  
Adult Males ◽  
Cytochrome Oxidase Subunit ◽  
Oxidase Subunit ◽  
Coi Sequences

Chironomids of the genus Pagastia Oliver (Diamesinae, Diamesini) from the mountains of Central Asia are revised using both morphological characters and molecular data. Illustrated descriptions of the adult male Pagastia (P.) caelestomontana sp. nov. from Kirgizstan and Tajikistan, P. (P.) hanseni sp. nov. from Tajikistan, and record of a finding apparently a new species P. (P.) aff. lanceolata (Tokunaga) from Tajikistan as well as an updated a key to the determination of the adult males of all known species of Pagastia are provided. A phylogenetic framework is reconstructed based on two mitochondrial genes cytochrome oxidase subunit I (COI) sequences of 34 samples belonging to 7 species of the genus Pagastia and cytochrome oxidase subunit II (COII) available for most samples. Phylogenetic trees of some known species of the genus Pagastia were reconstructed using the combined dataset and Bayesian inference (BI) and Maximum Likelihood (ML) methods. The interspecific K2P distances between seven Pagastia species including P. (P.) caelestomontana sp. nov., P. (P.) hanseni sp. nov. and undescribed P. (P.) aff. lanceolata (Tokunaga) are 6.3–13.2 which corresponding to species level. 

scholarly journals New species of Cyphocharax (Characiformes: Curimatidae) from the upper rio Negro, Amazon basin

2014 ◽  
Vol 12 (2) ◽  
pp. 327-332 ◽  
Author(s):  
Bruno F. Melo ◽  
Richard P. Vari
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Rio Negro ◽  
Fin Rays ◽  
Dark Pigmentation ◽  
Northern Brazil ◽  
Adipose Fin ◽  
A New Species

A new species of Cyphocharax, Curimatidae, apparently endemic to the blackwater upper rio Negro of the Amazon basin in northern Brazil, is described.The new species is readily distinguished from its congeners by the presence of a distinctly longitudinally elongate, posteriorly vertically expanding patch of dark pigmentation along the midlateral surface of the caudal peduncle, with the patch extending from the base of the middle caudal-fin rays anteriorly past the vertical through the posterior terminus of the adipose fin. The new species additionally differs from all congeners in details of body and fin pigmentation and meristic and morphometric ratios. Evidence for the assignment of the species to Cyphocharax and the occurrence of other species of the Curimatidae apparently endemic to the upper rio Negro catchment is discussed.

scholarly journals Three new species of the genus Coddingtonia from Asia (Araneae, Theridiosomatidae)

ZooKeys ◽  
2019 ◽  
Vol 886 ◽  
pp. 113-126
Author(s):  
Chengcheng Feng ◽  
Yucheng Lin
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Morphological Characters ◽  
Molecular Data ◽  
Current Paper ◽  
Distribution Map ◽  
Three New Species

The current paper expands knowledge of the genus Coddingtonia Miller, Griswold & Yin, 2009. Based on morphological characters and molecular data, three species are documented as new to science: C. erhuan Feng & Lin, sp. nov. (♀) from China, C. lizu Feng & Lin, sp. nov. (♀) from China, and C. huifengi Feng & Lin, sp. nov. (♂♀) from Indonesia. The type of C. euryopoides Miller, Griswold & Yin, 2009 is also reexamined. DNA sequences (COI), detailed illustrations of habitus, male palp and epigyne are provided for these four species, as well as a key and a distribution map for Coddingtonia species.

A new riparian Mantidactylus (Brygoomantis) frog from the Tsaratanana and Manongarivo Massifs in northern Madagascar

Zootaxa ◽  
2018 ◽  
Vol 4486 (4) ◽  
pp. 575 ◽  
Author(s):  
MIGUEL VENCES ◽  
ANDREA HILDENBRAND ◽  
KATHARINA M. WARMUTH ◽  
FRANCO ANDREONE ◽  
FRANK GLAW
Keyword(s):  
New Species ◽  
Nuclear Dna ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Molecular Data ◽  
Test Case ◽  
Nominal Species ◽  
Type Specimens ◽  
The Status ◽  
Morphological Differences

The subgenus Brygoomantis in the Madagascar-endemic genus Mantidactylus contains 12 nominal species but is in urgent need of taxonomic revision as many additional, genetically divergent but undescribed candidate species have been identified. We here take a first step towards a better resolution of this group by describing a new species, Mantidactylus schulzi sp. nov., occurring at the Tsaratanana and Manongarivo Massifs, differentiated in genetic, bioacoustic and sometimes morphological characters from its closest relatives. We show that upon detailed study, most species in Brygoomantis can be delimited by concordant differentiation of mitochondrial and nuclear DNA, and by bioacoustic and morphological differences. We flag this group of morphologically similar frogs as a test case where molecular data on historical type specimens by ancient DNA methods might be needed to reach a satisfying clarification of taxonomy and nomenclature. However, the status of the new species M. schulzi is not in doubt as it is morphologically distinct from most historical type specimens, and microendemic to a region in northern Madagascar from where no earlier names exist. 

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