A new genus and species of Sarcoglanidinae from the Río Mamoré, Amazon Basin, with comments on subfamilial phylogeny (Teleostei, Trichomycteridae)
Identifieur interne : 00BA11 ( Main/Exploration ); précédent : 00BA10; suivant : 00BA12A new genus and species of Sarcoglanidinae from the Río Mamoré, Amazon Basin, with comments on subfamilial phylogeny (Teleostei, Trichomycteridae)
Auteurs : Mário C. C. Depinna ; Wayne C. Starnes [États-Unis]Source :
- Journal of Zoology [ 0952-8369 ] ; 1990-09.
English descriptors
- KwdEn :
- Amazon basin, Anal, Anterior, Anterior border, Anterior margin, Anterior nostril, Anterior ossification, Barbel, Basal portion, Branchiostegal rays, Catfish, Caudal, Caudal peduncle, Dark chromatophores, Dark pigment, Dorsal, Dorsal expansion, Fewer rays, Genus, Glanapterygines, Holotype, Interopercular, Interopercular patches, Lateral, Malacoglanis, Maxilla, Maxillary, Maxillary barbel, Melanophores, Mesial, Monophyletic group, Mulucoglunis, Myers weitzman, National museum, Natural history, Nostril, Odontodes, Opercular, Other sarcoglanidines, Other trichomycterids, Palatine, Paratype, Pectoral, Peduncle, Pelvic fins, Phylogenetic relationships, Pigmentation, Pinna, Posterior, Posterior nostril, Posterior process, Posteriorly, Premaxilla, Premaxillary, Principal rays, Quadrate, Rictal barbel, Sarcoglanidinae, Sarcoglanidine, Sarcoglanidine catfish, Sarcoglanidines, Sarcoglanis, Sarmientoi, Smithsonian institution, Snout, Starnes, Stenolicmus, Stenolicmus sarmientoi, Subfamily, Synapomorphies, Synapomorphy, Taxon, Trichomycterid, Trichomycterids, Ventral, Weitzman.
- Teeft :
- Amazon basin, Anal, Anterior, Anterior border, Anterior margin, Anterior nostril, Anterior ossification, Barbel, Basal portion, Branchiostegal rays, Catfish, Caudal, Caudal peduncle, Dark chromatophores, Dark pigment, Dorsal, Dorsal expansion, Fewer rays, Genus, Glanapterygines, Holotype, Interopercular, Interopercular patches, Lateral, Malacoglanis, Maxilla, Maxillary, Maxillary barbel, Melanophores, Mesial, Monophyletic group, Mulucoglunis, Myers weitzman, National museum, Natural history, Nostril, Odontodes, Opercular, Other sarcoglanidines, Other trichomycterids, Palatine, Paratype, Pectoral, Peduncle, Pelvic fins, Phylogenetic relationships, Pigmentation, Pinna, Posterior, Posterior nostril, Posterior process, Posteriorly, Premaxilla, Premaxillary, Principal rays, Quadrate, Rictal barbel, Sarcoglanidinae, Sarcoglanidine, Sarcoglanidine catfish, Sarcoglanidines, Sarcoglanis, Sarmientoi, Smithsonian institution, Snout, Starnes, Stenolicmus, Stenolicmus sarmientoi, Subfamily, Synapomorphies, Synapomorphy, Taxon, Trichomycterid, Trichomycterids, Ventral, Weitzman.
Abstract
Stenolicmus sarmientoi is described as a new genus and species of the trichomycterid subfamily Sarcoglanidinae, from the RíAo Mamoré Basin, Bolivia. It can be distinguished from all other sarcoglanidines by: five‐rayed pectoral fin; elongate body shape (HL about 15% of SL); absence of fontanelles on cranial roof; well‐developed patches of opercular and interopercular odontodes (five or six on each bone); numerous accessory caudal‐fin rays (13 dorsal and 11 ventral); and presence of extensive dark pigmentation on the surface of the body. Three synapomorphies support a hypothesis that the new taxon forms a monophyletic group with other sarcoglanidines: presence of an anterior ossification of the palatine cartilage; quadrate with a dorsal expansion directed posteriorly; and premaxilla with a long lateral process. Stenolicmus lacks some synapomorphies shared by Stauroglanis, Malacoglanis and Sarcoglanis, and shares some other synapomorphies exclusively with Sarcoglanis and Malacoglanis. These character distributions make it uncertain whether Stenolicmus is the sister group of all other sarcoglanidines or only of Malacoglanis plus Sarcoglanis, because the two positions imply equally parsimonious cladograms.
Url:
DOI: 10.1111/j.1469-7998.1990.tb04030.x
Affiliations:
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Le document en format XML
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history</term><term>Nostril</term><term>Odontodes</term><term>Opercular</term><term>Other sarcoglanidines</term><term>Other trichomycterids</term><term>Palatine</term><term>Paratype</term><term>Pectoral</term><term>Peduncle</term><term>Pelvic fins</term><term>Phylogenetic relationships</term><term>Pigmentation</term><term>Pinna</term><term>Posterior</term><term>Posterior nostril</term><term>Posterior process</term><term>Posteriorly</term><term>Premaxilla</term><term>Premaxillary</term><term>Principal rays</term><term>Quadrate</term><term>Rictal barbel</term><term>Sarcoglanidinae</term><term>Sarcoglanidine</term><term>Sarcoglanidine catfish</term><term>Sarcoglanidines</term><term>Sarcoglanis</term><term>Sarmientoi</term><term>Smithsonian institution</term><term>Snout</term><term>Starnes</term><term>Stenolicmus</term><term>Stenolicmus sarmientoi</term><term>Subfamily</term><term>Synapomorphies</term><term>Synapomorphy</term><term>Taxon</term><term>Trichomycterid</term><term>Trichomycterids</term><term>Ventral</term><term>Weitzman</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Amazon basin</term><term>Anal</term><term>Anterior</term><term>Anterior border</term><term>Anterior margin</term><term>Anterior nostril</term><term>Anterior ossification</term><term>Barbel</term><term>Basal portion</term><term>Branchiostegal rays</term><term>Catfish</term><term>Caudal</term><term>Caudal peduncle</term><term>Dark chromatophores</term><term>Dark pigment</term><term>Dorsal</term><term>Dorsal expansion</term><term>Fewer rays</term><term>Genus</term><term>Glanapterygines</term><term>Holotype</term><term>Interopercular</term><term>Interopercular patches</term><term>Lateral</term><term>Malacoglanis</term><term>Maxilla</term><term>Maxillary</term><term>Maxillary 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institution</term><term>Snout</term><term>Starnes</term><term>Stenolicmus</term><term>Stenolicmus sarmientoi</term><term>Subfamily</term><term>Synapomorphies</term><term>Synapomorphy</term><term>Taxon</term><term>Trichomycterid</term><term>Trichomycterids</term><term>Ventral</term><term>Weitzman</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Stenolicmus sarmientoi is described as a new genus and species of the trichomycterid subfamily Sarcoglanidinae, from the RíAo Mamoré Basin, Bolivia. It can be distinguished from all other sarcoglanidines by: five‐rayed pectoral fin; elongate body shape (HL about 15% of SL); absence of fontanelles on cranial roof; well‐developed patches of opercular and interopercular odontodes (five or six on each bone); numerous accessory caudal‐fin rays (13 dorsal and 11 ventral); and presence of extensive dark pigmentation on the surface of the body. Three synapomorphies support a hypothesis that the new taxon forms a monophyletic group with other sarcoglanidines: presence of an anterior ossification of the palatine cartilage; quadrate with a dorsal expansion directed posteriorly; and premaxilla with a long lateral process. Stenolicmus lacks some synapomorphies shared by Stauroglanis, Malacoglanis and Sarcoglanis, and shares some other synapomorphies exclusively with Sarcoglanis and Malacoglanis. These character distributions make it uncertain whether Stenolicmus is the sister group of all other sarcoglanidines or only of Malacoglanis plus Sarcoglanis, because the two positions imply equally parsimonious cladograms.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country></list><tree><noCountry><name sortKey="Depinna, Mario C C" sort="Depinna, Mario C C" uniqKey="Depinna M" first="Mário C. C." last="Depinna">Mário C. C. Depinna</name></noCountry><country name="États-Unis"><noRegion><name sortKey="Starnes, Wayne C" sort="Starnes, Wayne C" uniqKey="Starnes W" first="Wayne C." last="Starnes">Wayne C. Starnes</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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