Classification / Names
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Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Pseudomystus: Greek, pseudes = false + Greek, mystax = whiskered, used by Belon in 1553 to describe all fishes with whiskers (Ref. 45335); heokhuii: Named for Heok Hui Tan.
Eponymy: Dr Heok Hui Tan is an ichthyologist who is a lecturer at the National University of Singapore which awarded all his degrees: bachelor’s (1996) master’s (1999) and Doctorate (2003). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
; Nước ngọt gần đáy; pH range: 3.5 - 4.5. Tropical
Asia: Batang Hari and Indragiri River drainages in Sumatra, Indonesia.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Chín muồi sinh dục: Lm ? range ? - ? cm
Max length : 6.4 cm SL con đực/không giới tính; (Ref. 74936)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các tia vây lưng cứng (tổng cộng) : 1; Các vây lưng mềm (tổng cộng) : 7; Tia mềm vây hậu môn: 12 - 14; Động vật có xương sống: 35 - 36. Differs from its congeners in possessing a color pattern consisting of a pale midlateral stripe and two pale oblique bands on the sides of the body; no other congener exhibits a distinct pale midlateral stripe. Can be differentiated further from all congeners except Pseudomystus breviceps, Pseudomystus bomboides, Pseudomystus flavipinnis, Pseudomystus myersi, Pseudomystus siamensis, Pseudomystus robustus, Pseudomystus sobrinus and Pseudomystus stenomus in having a deeper body (17.8-21.0% SL vs. 9.0-17.0). Differs from Pseudomystus leiacanthus in having two (vs. one) dark narrow irregular bars on the caudal fin, longer pectoral spine (19.3-22.4% SL vs. 15.2-18.6), longer caudal fin (33.5-40.0% SL vs. 25.7-31.9) with pointed (vs. rounded) lobes, longer nasal and maxillary barbels (63.1-81.1% HL vs. 31.3-51.5 and 86.2-125.3% HL vs. 70.9-91.3 respectively; nasal barbel reaching to dorsal insertion of opercular flap vs. to just beyond posterior orbital margin and maxillary barbel reaching just beyond base of last pectoral-fin ray vs. to base of pectoral spine), a straight ( vs. crescentic) premaxillary tooth patch, a more sharply tapering snout when viewed dorsally and an even (vs. slightly convex) predorsal profile (Ref. 74936).
Body shape (shape guide): elongated.
Occurs in floodplain channels and peat swamps with very acidic (pH 3.5-4.5), tannin-stained water (Ref. 74936).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Lim, K.K.P. and H.H. Ng, 2008. Pseudomystus heokhuii, a new species of bagrid catfish from Sumatra (Teleostei:Bragidae). Zootaxa 1686:37-47. (Ref. 74936)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Các công cụ
Special reports
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Estimates based on models
Phylogenetic diversity index (Tài liệu tham khảo
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00408 - 0.01859), b=2.94 (2.76 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Tài liệu tham khảo
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Thích nghi nhanh (Tài liệu tham khảo
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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