Neblinichthys Ferraris, Isbrucker & Nijssen 1986
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2013
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| _version_ | 1866901732699668480 |
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| author | Armbruster, Jonathan W. Taphorn, Donald C. |
| author_facet | Armbruster, Jonathan W. Taphorn, Donald C. |
| contents | <p><b>Key to the species of <i>Neblinichthys</i></b></p><p>1a. Four or more preadipose plates; 10 or fewer elongate cheek odontodes ................................................... <i>........ N. roraima</i></p><p>1b. Three or fewer preadipose plates, 20 or more elongate cheek odontodes ................................................................... 2</p><p>2a. Abdomen with irregular gray spots and vermiculations on a dark background; no (occasionally one) odontodes on the exposed portion of the opercle; iris operculum absent, internares width 5.0-8.5% HL .............................................. 3</p><p>2b. Abdomen usually white or with dark spots or short vermiculations on a light background; 10 or more odontodes on the exposed portion of the opercle, iris operculum present; internares width 7.6-15.5% HL ......... 4</p><p>3a. Dorsal-fin base length 18.1-22.8% SL; dorsal-anal distance 13.7-18.3% SL, snout decreasing in steep arc just anterior to eyes and then flattening in area anterior of nares; adpressed dorsal fin not reaching anterior preadipose plate ...................................................................... <i>N. brevibracchium</i></p><p>3b. Dorsal-fin base length 24.3-27.0% SL; dorsal-anal distance 11.9-12.5% SL, snout tapering shallowly and continuously from eyes to snout tip; adpressed dorsal fin reaching anterior preadipose plate .................................... <i>N. echinasus</i></p><p>4a. Usually four anal-fin rays (one examined with five), spots on fins small dashes confined to rays; six to seven columns of spots on caudal fin ................................................. <i>N. yaravi</i></p><p>4b. Five anal-fin rays; spots on fins large and round, extending onto membranes; three to five bands or columns of spots on caudal fin .......................................................................... 5</p><p>5a. Caudal peduncle with dark blotches forming mottling; head usually with spots (absent in nuptial males); rectangular blotch at base of caudal fin; nuptial males with relatively short odontodes directed largely upwards (see discussion); internares width 10.5-12.4% HL; postanal length 28.5-30.6% SL ........................................................................ <i>N.peniculatus</i></p><p>5b. Caudal peduncle brown; head without spots; no rectangular blotch at base of caudal fin; nuptial males with very long odontodes directed anteriorly (see discussion); internares width 17.3-20.1% HL; postanal length 32.8-34.9% SL ................................................................................. <i>N. pilosus</i></p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_14422474 |
| institution | Zenodo |
| language | |
| publishDate | 2013 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Neblinichthys Ferraris, Isbrucker & Nijssen 1986 Armbruster, Jonathan W. Taphorn, Donald C. Biodiversity Taxonomy Animalia Chordata Actinopterygii Siluriformes Loricariidae Neblinichthys <p><b>Key to the species of <i>Neblinichthys</i></b></p><p>1a. Four or more preadipose plates; 10 or fewer elongate cheek odontodes ................................................... <i>........ N. roraima</i></p><p>1b. Three or fewer preadipose plates, 20 or more elongate cheek odontodes ................................................................... 2</p><p>2a. Abdomen with irregular gray spots and vermiculations on a dark background; no (occasionally one) odontodes on the exposed portion of the opercle; iris operculum absent, internares width 5.0-8.5% HL .............................................. 3</p><p>2b. Abdomen usually white or with dark spots or short vermiculations on a light background; 10 or more odontodes on the exposed portion of the opercle, iris operculum present; internares width 7.6-15.5% HL ......... 4</p><p>3a. Dorsal-fin base length 18.1-22.8% SL; dorsal-anal distance 13.7-18.3% SL, snout decreasing in steep arc just anterior to eyes and then flattening in area anterior of nares; adpressed dorsal fin not reaching anterior preadipose plate ...................................................................... <i>N. brevibracchium</i></p><p>3b. Dorsal-fin base length 24.3-27.0% SL; dorsal-anal distance 11.9-12.5% SL, snout tapering shallowly and continuously from eyes to snout tip; adpressed dorsal fin reaching anterior preadipose plate .................................... <i>N. echinasus</i></p><p>4a. Usually four anal-fin rays (one examined with five), spots on fins small dashes confined to rays; six to seven columns of spots on caudal fin ................................................. <i>N. yaravi</i></p><p>4b. Five anal-fin rays; spots on fins large and round, extending onto membranes; three to five bands or columns of spots on caudal fin .......................................................................... 5</p><p>5a. Caudal peduncle with dark blotches forming mottling; head usually with spots (absent in nuptial males); rectangular blotch at base of caudal fin; nuptial males with relatively short odontodes directed largely upwards (see discussion); internares width 10.5-12.4% HL; postanal length 28.5-30.6% SL ........................................................................ <i>N.peniculatus</i></p><p>5b. Caudal peduncle brown; head without spots; no rectangular blotch at base of caudal fin; nuptial males with very long odontodes directed anteriorly (see discussion); internares width 17.3-20.1% HL; postanal length 32.8-34.9% SL ................................................................................. <i>N. pilosus</i></p> |
| title | Neblinichthys Ferraris, Isbrucker & Nijssen 1986 |
| topic | Biodiversity Taxonomy Animalia Chordata Actinopterygii Siluriformes Loricariidae Neblinichthys |
| url | https://doi.org/10.5281/zenodo.14422474 |