A new species of catfish, Pterocryptis vorax (Actinopterygii: Siluridae), from northern Borneo

被引：0

作者：

Ng, Heok hee ^{[1
]}

Kahar, Rafhiah ^{[2
]}

Tan, Heok hui ^{[3
]}

机构：

[1] Natl Univ Singapore, Lee Kong Chian Nat Hist Museum, 2 Conservatory Way, Singapore 117377, Singapore

[2] Univ Brunei Darussalam, Inst Biodivers & Environm Res, Jalan Tungku Link, BE-1410 Gadong, Brunei

[3] Natl Univ Singapore, Lee Kong Chian Nat Hist Museum, 2 Conservatory Dr, Singapore 117377, Singapore

来源：

ZOOTAXA | 2025年 / 5575卷 / 04期

关键词：

Siluriformes; Brunei Darussalam; Belalong River; Temburong River; FRESH-WATER FISHES; CATFISH TELEOSTEI; BRUNEI-DARUSSALAM; REDESCRIPTION;

D O I：

10.11646/zootaxa.5575.4.3

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

This study describes Pterocryptis vorax, a new species of silurid catfish from the upper reaches of the Temburong River drainage in Brunei Darussalam, northern Borneo. Pterocryptis vorax is distinguished from congeners in having a unique combination of the following characters: rictal lobe ending at vertical posterior to posterior orbital margin, deep lower jaw with a more gently curved anteroventral margin, a color pattern of densely distributed dark brown patches on the flanks that coalesce to form a reticulate pattern, a dark vertical band at the caudal-fin base, 46-57 anal-fin rays and 48-49 vertebrae. Sexual dichromatism in Pterocryptis is also reported for the first time here.

引用

页码：535 / 544

页数：10

共 17 条

[1] Bleeker P., De visschen van den Indischen Archipel beschreven en toegelicht. Deel I. Siluri, Acta Societatis Regiae Scientiarum Indo-Neêrlandicae, 4, (1858)
[2] Bornbusch A.H., Redescription and reclassification of the silurid catfish Apodoglanis furnessi Fowler (Siluriformes: Siluridae), with diagnoses of three intrafamilial silurid subgroups, Copeia, 1991, pp. 1070-1084, (1991)
[3] Choy S., Chin P.K., Freshwater fishes from the headwaters of the Belalong-Temburong River system, Brunei Darussalam, Borneo, The Raffles Bulletin of Zoology, 42, pp. 757-774, (1994)
[4] Fowler H.W., Some fishes from Borneo, Proceedings of the Academy of Natural Sciences of Philadelphia, 57, pp. 455-523, (1905)
[5] Kottelat M., Lim K.K.P., Freshwater fishes of Sarawak and Brunei Darussalam: a preliminary annotated check-list, The Sarawak Museum Journal, New Series, 48, pp. 227-256, (1995)
[6] Miller E.C., Mesnick S.L., Wiens J.J., Sexual dichromatism is decoupled from diversification over deep time in fishes, American Naturalist, 198, pp. 232-252, (2021)
[7] Ng H.H., Pterocryptis inusitata, a new species of silurid catfish from Laos (Teleostei: Siluriformes), Ichthyological Exploration of Freshwaters, 10, pp. 371-374, (1999)
[8] Ng H.H., ompok supernus, a new catfish (Teleostei: Siluridae) from Borneo, Zootaxa, 1877, 1, pp. 59-68, (2008)
[9] Ng H.H., Chan B.P.-L., Revalidation and redescription of Pterocryptis anomala (Herre, 1933), a catfish (Teleostei: Siluridae) from southern China, Zootaxa, 1060, 1, pp. 51-64, (2005)
[10] Ng H.H., Freyhof J., A review of the catfish genus Pterocryptis (Siluridae) in Vietnam, with the description of two new species, Journal of Fish Biology, 59, pp. 624-644, (2001)

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