分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps) >
Gastromyzontidae (Hillstream loaches)
Etymology: diardi: Named for Diard, naturalist-explorer of Indo-China and Indonesia.
Eponymy: Lieutenant-Colonel Robert Beresford Seymour Sewell CIE. [...] Pierre-Medard Diard (1794–1863) was a French explorer and naturalist. [...] (Ref. 128868), visit book page.
More on author: Roberts.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 熱帶
Asia: Se Kong watershed, the southern-most large tributary of Mekong in Laos.
亞洲: Se Kong 分水嶺, 在寮國湄公河的最南之大支流。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 7.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 38650)
简单描述
检索表 | 型态特徵 | 形态测量图
脊椎骨: 35 - 36. Differs from members of the genus by the following combination of characters: absence of dark stripes on body; absence of bold concentric bands on posterior part of paired fins; pelvic fin not reaching anal-fin origin; general appearance robust, body width at dorsal-fin origin 24.2-28.0% SL; caudal peduncle depth 10.7-11.2% SL; caudal peduncle length 0.8-0.9 times in its depth; predorsal body length 51.3-53.7% SL; pelvic-fin origin in front of dorsal-fin origin; absence of cavity around mouth; skin-fold between oropectoral membrane and ventral surface of head running from pectoral-fin origin to second rostral barbel; tubercles on dorsal part of head concentrated on lateral part of snout; absence of large tubercles on branched pectoral-fin rays 15-21; and 60-70 lateral line scales (Ref. 40433).
在它的比较微暗颜色，较大中有别于亚属 Sewellia 的成员, 在雄性中的比较不明显胸鳍 tuberculation, 腹鳍失败在后部地延伸到臀鳍起源 , 与更多的脊椎骨.(35-36 对 31-34) Pectoral fin rays i23-26 ，腹鳍鳍条 i 18-20. 从 S. elongata ， Diardichthys 的唯一的其他成员，它在身体上不同之处为它的更加结实的身体，较深的尾柄 , 彩色标志通常更细分开 (没有例外在方式系列), 与通常较少的脊椎骨。
Inhabits hill streams. Occurs sympatrically with S. speciosa.
栖息于丘陵的溪流。 与 S. speciosa 生存分布区重叠。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亞洲: Se Kong 分水嶺, 在寮國湄公河的最南之大支流。
Roberts, T.R., 1998. Systematic revision of the balitorid loach genus Sewellia of Vietnam and Laos, with diagnoses of four new species. Raffles Bull. Zool. 46(2):271-288. (Ref. 38650)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00268 - 0.01421), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.6 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
