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Glyptothorax rugimentum , new species, holotype, ZRC 50572, 78.6 mm SL; Myanmar: Ataran River. Dorsal, lateral and ventral views.
Source publication
Glyptothorax rugimentum, a new species of sisorid catfish from the Ataran, Salween and Sittang River drainages in Myanmar and western Thailand is described here. It can be distinguished from all congeners in having a unique combination of the following characters: unculiferous ridges of thoracic adhesive apparatus extending anteriorly onto gular re...
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We review members of the sisorid catfish genus Exostoma known from Thailand. Three species are recognized, of which two from the headwaters of the Chao Phraya River drainage in northwestern Thailand, are described here as new: E. effrenum and E. peregrinator. In addition to the two new species, E. berdmorei (which is here redescribed) is also known...
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A new species of the sisorid catfish genus Exostoma Blyth, 1860 was collected from two hill-stream tributaries of the Nujiang (Salween River) drainage in Gaoligong Mountain, south-western Yunnan Province, China from 2003 to 2006 and from two tributaries of the Salween River in Cangyuan County, Lingcang Prefecture, Yunnan Province, China (in 2007) a...
Citations
... Similar to C. kamengensis, the mitogenomes of G. andersonii and Exostoma sp. each had one 16SrRNA and one 12SrRNA gene. The 16SrRNA gene was located between tRNA-Val and tRNA-Leu (UUR), and the 12SrRNA gene was located between tRNA-Phe and tRNA-Val, which also occurred in some other Sisoridae fishes (Ng and Kottelat 2008;Ng 2015). The size of the 12S rRNA in C. kamengensis and G. andersonii was 956 bp, both a little longer than in Exostoma sp. ...
The family Sisoridae is one of the largest and most diverse Asiatic catfish families, with most species occurring in the water systems of the Qinhai-Tibetan Plateau and East Himalayas. At present, the phylogenetic relationship of the Sisoridae is relatively chaotic. In this study, the mitochondrial genomes (mitogenomes) of three species Creteuchiloglanis kamengensis, Glaridoglanis andersonii, and Exostoma sp. were systematically investigated, the phylogenetic relationships of the family were reconstructed and to determine the phylogenetic position of Exostoma sp. within Sisoridae. The lengths of the mitogenomes’ sequences of C. kamengensis, G. andersonii, and Exostoma sp. were 16,589 bp, 16,531 bp, and 16,529 bp, respectively. They all contained one identical control region (D-loop), two ribosomal RNAs (rRNAs), 13 protein-coding genes (PCGs) and 22 transfer RNA (tRNA) genes. We applied two approaches, Bayesian Inference (BI) and Maximum Likelihood (ML), to construct phylogenetic trees. Our findings revealed that the topological structure of both ML and BI trees exhibited significant congruence. Specifically, the phylogenetic tree strongly supports the monophyly of Sisorinae and Glyptosternoids and provides new molecular biological data to support the reconstruction of phylogenetic relationships with Sisoridae. This study is of great scientific value for phylogenetic and genetic variation studies of the Sisoridae.
... Fishes of the genus Glyptothorax Blyth are widely distributed in the hill streams and swift-flowing rivers from the Euphrates in eastern Turkey, eastwards to the Yangtze and southwards to southern peninsular India, and the Greater Sunda Islands (Ng & Kullander 2013). They are distinguished by their distinctive thoracic adhesive apparatus, comprising an elliptical field of radiating folded oblique pleats of skin, and additionally diagnosed by a detached distal portion of the premaxilla, with long and thin lateral arms of the vomer that extends underneath the entire length of the articular process of the lateral ethmoid (de Pinna 1996;Ng & Kottelat 2008). ...
... The shape of thoracic adhesive apparatus, and extension of unculiferous ridges onto the gular are important characters distinguishing species of Glyptothorax (Hora 1923;Ng & Kottelat 2008;Tamang & Chaudhry 2011). Glyptothorax heokheei, has a chevron-shaped thoracic adhesive apparatus with a poorly developed median depression, and its unculiferous ridges extending anteriorly onto the gular region. ...
Glyptothorax heokheei, a new species of sisorid catfish is described from the Brahmaputra River drainage in India. It can be distinguished from all congeners, except G. dikrongensis, G. indicus, G. rugimentum and G. obliquimaculatus, in having the unculiferous striae of thoracic adhesive apparatus extending anteriorly onto gular region. Glyptothorax heokheei is distinguished from G. dikrongensis and G. obliquimaculatus in having a slender body at the anus, more serrations on posterior margin of pectoral-fin spine, greater number of branched anal fin rays, and the extremity of dorsoposterior margin of adipose fin uniformly convex (vs. sharply angular). It differs from G. rugimentum in having a chevron-shaped (vs. rhomboidal) thoracic adhesive apparatus, more serrations on posterior margin of pectoral-fin spine, and lacking vertical bars on body. Glyptothorax heokheei differs from G. indicus in having a shorter post-adipose distance, smaller interorbital width, more serrations on posterior margin of pectoral-fin spine and nasal barbel not reaching (vs. reaching) anterior margin of eye. Glyptothorax heokheei is the fifth species of the genus possessing unculiferous ridges of thoracic adhesive apparatus extending anteriorly onto the gular region.
... The rheophilic catfish genus Glyptothorax is the most diverse on the Indian sub-continent (Ng 2005). It is a widely distributed genus known from the Euphrates River drainage of eastern Turkey eastward to the Yangtze River drainage and southwards to the Indian subcontinent and the Greater Sunda Islands (Ferraris and Britz 2005;Ng and Kottelat 2008). The members of the genus inhabit fast-flowing hillstreams or the faster-flowing reaches of larger rivers (Jiang et al. 2011). ...
... Fifteen species of Glyptothorax are known from the Chindwin-Irrawaddy drainage in Myanmar, China, and India (Ng and Kottelat 2008;Fricke et al. 2022): G. burmanicus Prasad and Mukerji, G. dorsalis Vinciguerra, G. granulus Vishwanath and Linthoingambi, G. igniculus Ng and Kullander, G. longicauda Li, G. longjiangensis Mo and Chu, G. minimaculatus Li, G. ngapang Vishwanath and Linthoingambi, G. panda Ferraris and Britz, G. rugimentum Ng and Kottelat, G. senapatiensis Premananda et al., G. trilineatus Blyth, G. ventrolineatus Vishwanath and Linthoingambi, G. waikhomi Shangningam and Kosygin and G. yuensis Shangningam and Kosygin. In a recent fish faunal survey conducted in the Pamtujang River, a tributary of the Chakpi River in the Chindwin River basin in Manipur, the first author collected specimens of a Glyptothorax species having plicae on the ventral surface of paired fins, that could not be readily identified. ...
Glyptothorax primusplicae, sp. n., is described from the Pamtujang
River, a tributary of the Chakpi River, Chindwin basin in Manipur,
India. It is diagnosable by the following combination of characteristics: the presence of plicae on the ventral surface of the pectoral fin spine and on the first pelvic-fin ray; the dorsal fin located nearer to the tip of the snout than to the adipose fin origin; a nasal barbel reaching the anterior margin of the orbit and the presence of three stripes on the body. This species is the first possessing plicae on the paired fins in the Chindwin-Irrawaddy River drainage.
... Similar to C. kamengensis, the mitogenomes of G. andersonii and Exostoma sp. each had one 16SrRNA and one 12SrRNA gene. The 16SrRNA gene was located between tRNA-Val and tRNA-Leu (UUR), and the 12SrRNA gene was located between tRNA-Phe and tRNA-Val, which also occurred in some other Sisoridae shes (Ng 2015;Ng and Kottelat 2008). The size of the 12S rRNA in C. kamengensis and G. andersonii was 956 bp, both a little longer than in Exostoma sp. ...
Background
At present, the phylogenetic relationship of the Sisoridae is relatively chaotic.
Objective
This study systematically investigated the mitochondrial genomes (mitogenomes) of three species Creteuchiloglanis kamengensis, Glaridoglanis andersonii, and Exostoma sp., reconstruct the phylogenetic relationships of the family and to determine the phylogenetic position of Exostoma sp. within Sisoridae.
Method
The sample of three Sisoridae were collected and DNA were extracted. After sequencing, NOVOPlasty was used for sequence assembly. Annotate sequences with MITOS WebServer, tRNAscan-SE2.0, and NCBI database. MEGA was used for sequence analysis and Phylosuite was used for phylogenetic tree construction.
Results
The lengths of the mitogenomes’ sequences of C. kamengensis, G. andersonii, and Exostoma sp were 16,589, 16,531, and 16,529 bp, respectively. They contained one identical control region (D-loop), two ribosomal RNAs (rRNAs), 13 protein-coding genes (PCGs) and 22 transfer RNA (tRNA) genes among the three species. We applied two approaches, Bayesian Inference (BI) and Maximum Likelihood (ML), to build phylogenetic trees. Our findings revealed that the topological structure of both ML and BI trees exhibited significant congruence. Specifically, the monophyly of Sisorinae and Glyptosternoids was robustly supported in the ML tree.
Conclusion
It also proves that the current phylogenetic relationship of Sisoridae is relatively chaotic, and provides new molecular biology data support for the reconstruction of the phylogenetic relationship of Sisoridae. This study will be of great scientific value to the study of phylogeny and the genetic variation of Sisoridae.
... Most Glyptothorax species have a restricted distribution, and are confined to two or three adjacent river drainages (Ng & Kottelat, 2016;2017). The presence or absence of plicae on ventral surfaces of the pectoral-and pelvic-fin elements, and the shape of thoracic adhesive apparatus have been considered very useful characters for diagnosing species of Glyptothorax (Hora, 1923;Ng & Kottelat, 2008;Rameshori & Vishwanath, 2014). As G. viridis possess plicae on ventral surface of the pectoral-fin spine, and on the first pelvic-fin ray, we restrict our comparisons with congeners having the same character occurring in the Indian subcontinent, and sympatric congeners from the Chindwin-Irrawaddy drainage. ...
... None of the 16 valid species of Glyptothorax in the Chindwin-Irrawaddy drainage of Myanmar, China, and India are known to have plicae on the ventral surface of paired fins (Ng & Kottelat 2008;Fricke et al., 2022). This includes Besides the presence of plicate paired fins and three stripes on the body, Glyptothorax viridis is further distinguished from its congeners in the Chindwin drainage except G. burmanicus by the absence (vs. ...
Glyptothorax viridis, new species, is described from the Dujang, a hill stream tributary of the Chakpi River, Chindwin drainage in Manipur, India. It is distinguished from its congeners by the following combination of characters: presence of plicae on paired fins; thoracic adhesive apparatus with a deep, cone-shaped median depression opening caudally; a slender pelvic fin reaching the anal fin, and tuberculated skin with three stripes on the body.
... The sisorid catfish Glyptothorax is the most diverse and widely distributed genus known from the Euphrates River drainage of eastern Turkey eastward to the Yangtze River drainage and southwards to the Indian subcontinent and the Greater Sunda Islands (Ferraris & Britz, 2005;Ng & Kottelat, 2008). The members of the genus inhabit fastflowing hill-streams or the faster flowing reaches of larger rivers (Jiang et al., 2011). ...
Glyptothorax yuensis, new species, is described from the Yu River, Sagaing division, Myanmar. It is characteristic in having a shallow adipose fin acutely incised at the posterior extremity of its base with an elongated pointed tip, adipose-fin base length 7.6-10.0 % SL; short nasal barbel, not extending to anterior margin of orbit; thoracic adhesive apparatus present with a conical-shaped median depression opening caudally, its length 11.7-13.0% SL and width 8.2-10.1% SL, anteromedial striae present; deep caudal peduncle, its depth 9.4-11.0 % SL; and two thin yellowish stripes on the body. A key to the species of the genus of Chindwin drainage is provided.
... The presence or absence of plicae on the ventral surfaces of the pectoral-and pelvic-fin elements (Hora, 1923;Rameshori & Vishwanath, 2014) and the shape of the thoracic adhesive apparatus are useful characters for diagnosing species of Glyptothorax (Ng & Kottelat, 2008 ) ventral surface of the pectoral-fin spine and the first pelvic-fin ray. Given that species of Glyptothorax are typically restricted to one or a few adjacent river basins (Ng & Rachmatika, 2005), we have compared G. rupiri with congeners occurring in the Indian subcontinent with plicae on the ventral surface of the paired fins. ...
Glyptothorax rupiri, a new sisorid catfish, is described from the Brahmaputra River basin in Arunachal Pradesh, northeast India. It differs from its congeners in the Indian subcontinent by the following combination of characters: the presence of plicae on the ventral surface of the pectoral spine and first pelvic-fin ray; a posteriorly serrated dorsal-fin spine, its length 11.3–12.2% SL; body depth at anus 11.2–13.4% SL; a thoracic adhesive apparatus longer than broad, with a V-shaped median depression which opens posteriorly; an arrow-shaped anterior nuchal plate element; adipose-fin base length 10.9–12.6% SL; nasal barbel not reaching anterior orbital margin; 14–18 serrae on posterior margin of the pectoral-fin spine; body with two longitudinal pale-cream stripes; densely tuberculated skin; and the presence of numerous tubercles on the dorsal surface of pectoral and pelvic-fin rays.
... Type specimens are deposited in the Zoological Survey of India, Kolkata (ZSI). Data for comparisons were taken from Ng (2005) for G. botius; Arunkumar and Moyon (2017) for G. chavomensis; Tamang & Chaudhry (2011) for G. dikrongensis;Lalramliana & Vanlalhriata (2010) for G. indicus;Hora (1921) for G. minutus; Ganguly et al. (1972) for G. nelsoni ;Ng & Lalramliana (2013) for G. radiolus ;Ng & Lalramliana (2012a) for G. maceriatus; Darshan et al. (2015) for G. mibangi; Arunkumar (2016) for G. pasighatensis; Ng & Kottelat (2008) for G. rugimentum and Ng & Lalramliana (2012b) for G. scorbiculus. ...
Glyptothorax gopii, a new sisorid catfish, is described from the Kaladan River drainage in Mizoram, northeast India. It is distinguished from its congeners in the Indian subcontinent by the combination of the following characters: an axe-shaped anterior nuchal plate element extensively in contact with the posterior nuchal plate, plicae present on the ventral surfaces of the pectoral-fin spine and outer rays of pelvic-fin rays, an elliptical thoracic adhesive apparatus, the nasal barbel not reaching the anterior margin of the eye, tuberculate skin, and two pale cream longitudinal stripes on the body. Glyptothorax alaknandi is considered a valid species.
... (1) descriptions of new species, such as Microrasbora microphthalma (Jiang et al., 2008), Tor yingjiangensis (Chen and Yang, 2004), Neolissochilus baoshanensis, Neolissochilus heterostomus (Chen and Yang, 2003;Chen et al., 1999), Placocheilus dulongensis , Garra rotundinasus (Zhang, 2006), Garra bispinosa (Zhang, 2005), Garra tengchongensis (Zhang and Chen, 2002), Schizothorax leukus, Schizothorax heteri , Protonemacheilus longipectoralis (Yang and Chu, 1990), Schistura albirostris (Chen and Neely, 2012), Hemimyzon yinjiangensis (Chen, 2006), Pseudecheneis stenura (Zhang, 2006), Pseudecheneis brachyurus, Pseudecheneis gracilis (Zhou et al., 2008), Creteuchiloglanis macropterus (Ng, 2004;Zhou et al., 2011), Oreoglanis insignis (Ng and Rainboth, 2001), Dario dayingensis (Kullander and Britz, 2002), Mastacembelus strigiventus and Mastacembelus triolobus (Yang and Zhou, 2011); (2) taxonomic and nominal revisions, such as Danio albolineatus (Fang, 2000), Poropuntius margarianus (Chen and Yang, 2003), Labeo pierrei (Kottelat, 2001), Bangana devdevi (Zhang and Chen, 2006), Crossocheilus burmanicus (Kottelat, 2003;Su et al., 2000), Garra salweenica (Zhang, 2005), Lepidocephalichthys berdmorei, Lepidocephalichthys hasselti (Kottelat, 2001;Kottelat and Lim, 1992), Syncrossus berdmorei, Botia histrionica (Kottelat, 2004), Acanthocobitis botia, Schistura polytaenia, Schistura yingjiangensis, Schistura malaise, Schistura vinciguerrae, Schistura sikmaiensis (Kottelat, 1990) and Glyptothorax burmanicus (Ng and Kottelat, 2008); and (3) new distribution records in these areas, such as Anguilla nebulosa (Pan and Zhou, 2004), Aspidoparia morar (Zhou et al., 2006), Puntius sophore, Puntius ticto (Chen et al., 1988;Shan, 2000), Heteropneustes fossilis (Yang et al., 2002) and Mastacembelus oatesii (Yang and Zhou, 2011). Higher-order classification follows (Nelson, 2006). ...
Incompletely known fish assemblages and species diversity are substantial obstacles in
fish conservation, particularly when their aquatic habitats are under threat due to rapid
human-induced changes. Fish assemblages and diversity in three tributaries of the upper
Irrawaddy River in China (the Dulong, Daying and Ruili rivers) were examined based on
field collections and literature resources. The newly compiled fish assemblage recorded 85
species (in 8 orders, 20 families and 51 genera) distributed in the upper Irrawaddy. The
fish compositions in the Daying (67 species, 44 genera, 19 families, 7 orders) and Ruili
rivers (65 species, 44 genera, 19 families, 8 orders) were more similar to each other and
more speciose than that in the Dulong River (14 species, 10 genera, 4 families, 3 orders).
Two indices of taxonomic diversity (the average taxonomic distinctness (Δ+), and the
variation in taxonomic distinctness (Λ+)) were used to discriminate four
collections spanning a ten-year period. A decrease in taxonomic diversity and an increase
in unevenness of the fish assemblages were found in both the Daying River and Ruili
rivers, which indicated that the impacts were accumulated gradually during this decade,
when dams and the spread of non-native species were major threats. Comparatively speaking,
the Dulong River is still in a near-natural state, and thus the fish community has
experienced less disturbance. In situ conservation (nature reserves and
tributary protection) and ex situ conservation (artificial propagation
and release) should be combined and managed to promote fish conservation in the future.
... Glyptothorax Blyth, 1860, is a speciose group of sisorid catfishes, with about 70 valid species (Ng & Hadiaty, 2009) found throughout much of the Asian continent. They occur from Asia Minor (in the Tigris and Euphrates river drainages) eastward to the Yangtze River drainage and southward to Sundaic South-East Asia (Ferraris, 2007;Ng & Kottelat, 2008). Typically found in fast flowing hill-streams or faster flowing reaches of larger rivers, Glyptothorax species are easily distinguished in having a thoracic adhesive apparatus comprising of an elliptical field of folded longitudinal pleats of skin. ...
... Given that there are more than 70 species of Glyptothorax recognized as valid, with members of the genus having highly restricted distributions usually restricted to single drainages (Ferraris, 2007), we chose to compare the species treated in this study only with congeners known from the area of study, viz. the upper reaches of the Irrawaddy (Dayingjiang and Longchuanjiang), Mekong (Lancanjiang), and Salween (Nujiang) drainages in southern China. Besides the four species treated here, 11 species of Glyptothorax have been reported from this area: Glyptothorax burmanicus (Irrawaddy and Salween drainages), Glyptothorax deqinensis (Mekong drainage), Glyptothorax lampris (Mekong drainage), Glyptothorax Glyptothorax burmanicus was often misidentified in earlier literature as Glyptothorax cavia, which is a species restricted to the Ganges-Brahmaputra system (Ng & Kottelat, 2008), whereas G. ngapang has often been misidentified in earlier literature as Glyptothorax dorsalis, a species known only from the lower Salween; it has also been misidentified in collections as G. minimaculatus (H-H. Ng, pers. ...
This study re-examined the taxonomic status of the sisorid catfishes usually identified as Glyptothorax zanaensis using a combination of morphometric and molecular data. Our results resurrect Glyptothorax longinema from the synonymy of G. zanaensis, and we describe two previously unnamed species as Glyptothorax granosus sp. nov. and Glyptothorax fucatus sp. nov. All four species are diagnosed and described in detail. Truss-based morphometrics combined with principal component analysis (PCA) detected three principal components (PCs) that can explain 86% of the total variation amongst species, which mainly reflect the characteristics of body depth, related depth, adhesive apparatus length, pectoral-fin length, caudal peduncle length, and barbel lengths. We also generated a phylogenetic hypothesis of these species using concatenated mitochondrial cytochrome b and d-loop gene sequences. Molecular dating analysis revealed a rapid speciation of Glyptothorax in the south-eastern corner of the Qinghai-Xizang Plateau from the middle Pliocene to early Pleistocene. A key to identify the Glyptothorax species from the Salween River drainage is also provided.
© 2012 The Linnean Society of London, Zoological Journal of the Linnean Society, 2012, 165, 363–389.
