分類 / Names
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Pleuronectiformes (Flatfishes) >
Cynoglossidae (Tonguefishes) > Symphurinae
Etymology: Symphurus: Greek, syn, symphysis = grown together + Greek, oura = tail (Ref. 45335); polylepis: Name from Greek 'poly' meaning many, and 'lepis' for scale, referring to the greater number of longitudinal scale rows compared with that of similar species of shallow-water tonguefishes.
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
海 底生の; 深さの範囲 0 - 23 m (Ref. 126065), usually 0 - 10 m (Ref. 126065). Tropical
Western Pacific: Papua New Guinea.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 5.0 cm SL オス/雌雄の選別がない; (Ref. 126065); 3.5 cm SL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 84 - 87; 臀鰭: 68 - 74; 脊つい: 46 - 48. is distinguished from all congeners by the combination of: ID pattern1-2-2-2-2 ; caudal-fin rays 12; vertebrae, 9 (3 +6) abdominal, 46-48 total; hypurals 4; D 84-87, A 68-74; longitudinal scale rows 88-94; transverse scale rows 32-34; scale rows on head posterior to lower orbit 17-19; fleshy ridge well developed on posterior part of ocular-side lower jaw; fleshy membrane covering both eyes; anterior margin of upper eye usually slightly in advance of anterior margin of lower eye; with fleshy flap continuous between ocular-side anterior nostril and anterior region of lower eye; upper head lobe is usually wider than lower head lobe; head length moderately long (HL = 21.9-23.8% of SL) and relatively large postorbital length (POL = 15.7-16.6% of SL, 69.3-73.3% of HL); preanal length relatively short (PAL = 23.5-24.6% of SL); snout short (SNL = 16.0-18.3% of HL, SNL/ED = 1.44-1.86), rounded to obliquely blunt anteriorly; head length usually shorter than head width (HW/HL= 1.02-1.14); dorsal-fin origin in posterior position at, or slightly posterior to, vertical through posterior margin of upper eye; predorsal length moderately long (PDL = 5.7-7.1% of SL; 24.4-31.4% of HL). Colouration: ocular side uniformly yellow to light-brown, blind side uniformly white, both sides with obvious dermal spots on bases of anteriormost dorsal- and anal-fin rays, and peritoneum bluish-black (Ref. 126065).
Cross section: flattened.
More accurate information about geographic distribution, bathymetric distribution and substrata where this species is found needed to better understand the ecology, distribution and life history of this species (Ref. 126065).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Lee, M.-Y. and T.A. Munroe, 2021. Unraveling cryptic diversity among shallow-water tonguefishes (Pleuronectiformes: Cynoglossidae: Symphurus) from the Indo-West Pacific region, with descriptions of five new species. Zootaxa 5039(1):1-5.5 (Ref. 126065)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
用具
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00190 - 0.00797), b=3.17 (3.00 - 3.34), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (参照
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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