Two New Species of the Akysis Variegatus Species Group (Siluriformes: Akysidae) from Southern Sumatra and a Redescription of Akysis Variegatus Bleeker, 1846

Page, Lawrence M.; Hadiaty, Renny Kurnia; López, J. Andrés; Rachmatika, Ike; Robins, R. H.

doi:10.1643/0045-8511(2007)7[292:tnsota]2.0.co;2

Cited by 6 publications

(1 citation statement)

References 5 publications

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“…The genus had been divided ino two species groups (the A. variegatus and the A. pseudobagarius species groups) by Ng & Kottelat (1998), with members of the A. pseudobagarius group being reassigned to the genus Pseudobagarius by Ferraris (2007). There is considerable hidden diversity within the genus; more than half of the 20 valid species have been described in the last decade (Ng & Kottelat 1998, 2004Ng & Tan 1999;Arunkumar 2000;Ng & Freyhof 2003;Ng & Rainboth 2005;Ng 2006Ng , 2007Page et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Akysis portellus sp. nov., a new species of catfish (Teleostei: Akysidae) from the Sittang River drainage, Myanmar

Ng¹

2009

J.Threat.Taxa

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MATERIAL AND METHODSMeasurements were made point-to-point with dial calipers and recorded to 0.1mm. Ng & Kottelat (1998) are followed for all measurements and counts, with the following additions: dorsal-spine length, which is measured from the base to the tip of the dorsal spine, head depth, which is measured at the base of the supraoccipital process (defined as the posterior margin of the supraoccipital excluding the supraoccipital process), and gape width, which is the horizontal distance of the mouth measured from one rictus to another. Meristic values with an asterisk indicate those for the holotype.

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Section: Introductionmentioning

confidence: 99%

Akysis portellus sp. nov., a new species of catfish (Teleostei: Akysidae) from the Sittang River drainage, Myanmar

Ng¹

2009

J.Threat.Taxa

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show abstract

Bibliography

2016

Fishes of the World

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Akysis pulvinatus, a new species of catfish (Siluriformes: Akysidae) from southern Thailand

2007

Zootaxa

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Akysis pulvinatus, new species, is described from southern Thailand. It can be distinguished from congeners in having a combination of: length of adipose-fin base 23.0-25.2% SL, body depth at anus 13.2-16.0% SL, caudal peduncle depth 9.4-10.3% SL, head length 27.6-29.8% SL, head width 21.9-25.1% SL, length of nasal barbel 13.9-57.5% HL, length of maxillary barbel 78.5-105.0% HL, smooth posterior edge of pectoral spine, gently forked caudal fin with lower lobe longer than upper, yellow snout, and rounded pale colored patches on body. A possible case of Müllerian mimicry with the syntopic Pseudobagarius leucorhynchus is mentioned and briefly discussed.

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Two New Species of the Akysis Variegatus Species Group (Siluriformes: Akysidae) from Southern Sumatra and a Redescription of Akysis Variegatus Bleeker, 1846

Cited by 6 publications

References 5 publications

Akysis portellus sp. nov., a new species of catfish (Teleostei: Akysidae) from the Sittang River drainage, Myanmar

Akysis portellus sp. nov., a new species of catfish (Teleostei: Akysidae) from the Sittang River drainage, Myanmar

Bibliography

Akysis pulvinatus, a new species of catfish (Siluriformes: Akysidae) from southern Thailand

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