分類 / Names
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Cypriniformes (Carps) >
Paedocyprididae (Tiny carps)
Etymology: Paedocypris: Name from the Greek words 'Paideios' meaning children and 'Cypris' for Venus, common suffix for cyprinid genera; gender feminine.; micromegethes: Micromegethes (Greek), small in size; a noun in apposition..
More on authors: Kottelat, Britz, Tan & Witte.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
Southeast Asia: Malaysia.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 1.2 cm SL オス/雌雄の選別がない; (Ref. 56152); 1.1 cm SL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
Paedocypris progenetica is distinguished from Paedocypris micromegethes by: a smaller maximum size (male 9.8mm, versus 11.6; female 10.3mm, versus 11.4), keratinized pad in front of male pelvic fins as a projecting knob (versus flat to slightly swollen), breeding tubercles on the dentary arranged in a straight row, without forming a cluster (versus forming a cluster of up to five closely set individual tubercles, subdistally on the lateral side of the dentary, supported by a conspicuous lateral bony extension), pelvic fins of female vestigial, or often missing (versus smaller than in male but similarly shaped), presence of pre-anal-fin-fold in female (a character unique among teleosts; versus absent in both sexes), dense small chromatophores in deep layer on abdomen appearing as a continuous patch, tiny black vermiculations on belly from throat to anus, including on male's pre-pelvic keratinized knob (versus large superficial, isolated chromatophores on belly from throat to anus, absent on male's keratinized pad), numerous small, contiguous chromatophores on middorsal line, organized in 3-5 rows, forming a broad stripe (versus few large isolated chromatophores, forming 1-3 irregular rows), pelvic-fin rays plain brown (versus with rows of spots).
Recorded from peat swamps (Ref. 84801).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Kottelat, M., R. Britz, H.H. Tan and K.-E. Witte, 2005. Paedocypris, a new genus of Southeast Asian cyprinid fish with a remarkable sexual dimorphism, comprises the world's smallest vertebrate. Proc. Royal Soc. Biol. Sci. 273:895-899. (Ref. 56152)
IUCNのレッドリストの状況は (Ref. 130435)
攻撃されやすい (VU) (B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)); Date assessed: 29 January 2019
Human uses
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.0 ±0.2 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
