分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Otopharynx: Greek, ous = hear + Greek, pharyngx = pharynx (Ref. 45335); styrax: From the Greek masculine noun στύραξ (styrax), a metal spike at the lower end of a spear shaft, for the resemblance of this elongate cichlid with pointed head to the shape of that classical object; a noun in apposition (Ref. 119408).
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の漂泳性. Tropical
Africa: Lake Malawi in Malawi and Tanzania (Ref. 119408).
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 11.7 cm SL オス/雌雄の選別がない; (Ref. 119408)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 16 - 17; 背鰭 (合計) : 12 - 14; 肛門の骨: 3; 臀鰭: 9 - 10. Diagnosis: A medium-sized, laterally spotted haplochromine distinguishable from all previously described Otopharynx species by its more elongate body, its depth 24.3-28.6% of standard length; the next-most-elongate species are Otopharynx decorus, depth 29.4-33.3% of standard length, and O. lithobates, depth 29.5-34.4% of standard length; all others have a body depth larger than 31% (Ref. 119408). Otopharynx styrax is further separated from O. decorus by its longer caudal peduncle, length/depth 2.0-2.3 vs. 1.5-1.6 in O. decorus, and its narrower lower pharyngeal bone, the lateral edges of the horns diverging at about 70° vs. 79-87° in O. decorus; it is further distinguished from O. lithobates by the absence of dark spots on the dorsum below the dorsal-fin base vs. 4-6 distinct dorsal midline spots in O. lithobates, and longer caudal peduncle, length/depth 2.0-2.3 vs. 1.3-1.7 in O. lithobates (Ref. 119408).
Body shape (shape guide): fusiform / normal.
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Oliver, M.K., 2018. Six new species of the Cichlid genus Otopharynx from Lake Malaŵi (Teleostei: Cichlidae). Bulletin of the Peabody Museum of Natural History 59(2):159-197. (Ref. 119408)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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 (参照 69278) |
3.4 ±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.). |
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (16 of 100). 🛈 |