分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); kwalensis: The name kwalensis is an allusion to the occurrence of the new species in the County of Kwala, coastal province of Kenya (Ref. 119668).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性.
Africa: Ramisi River basin in the coastal plain of south-eastern Kenya (Ref. 119668).
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 4.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 119668)
簡短描述
型態特徵 | 形態測量圖
背棘 (總數): 0; 背的軟條 (總數): 14-16; 臀棘 0; 臀鰭軟條: 16 - 18. Diagnosis: Nothobranchius kwalensis is distinguished from all other congeners of the N. melanospilus complex by the combination of the following morphological character states: lower jaw not anteriorly projecting beyond upper jaw vs. anteriorly projecting in N. prognathus; dorsal-fin origin anterior to anal fin origin in females vs. posterior in both sexes in N. melanospilus; pelvic fins medially in contact vs. bases medially united in males of N. prognathus; presence of two longitudinal series of scales on frontal region vs. three in N. prognathus; anterior supraorbital series of neuromasts divided in two sections vs. arranged in a single continuous row in N. melanospilus; mandibular neuromasts 14-16 vs. 17-21 in N. melanospilus; in females, few rounded black dots on anterior portion of flank vs. dots absent on anterior portion of flank in N. melanospilus; body depth 28.7-30.9% of standard length in males, 25.8% of standard length in female, vs. 32.7-35.5% and 32.1-33.4% of standard length respectively in N. prognathus; dorsal-fin base length 24.1-27.3% of standard length in males vs. 27.9-29.9% of standard length in N. prognathus; head depth 79.0-82.9% of head length in males, 69.5% in female, vs. 90.4-99.2% and 85.6-90.3% of head length respectively in N. prognathus; eye diameter 26.8-28.4% of head length in males, 27.1% in female vs. 20.9-25.9% and 21.1-24.4% respectively in N. prognathus (Ref. 119668).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Costa, W.J.E.M., 2019. Two new species of seasonal killifishes of the Nothobranchius melanospilus species complex from the East Africa biodiversity hotspot (Cyprinodontiformes: Aplocheilidae). Vert. Zool. 69(1):73-82. (Ref. 119668)
IUCN 瀕危狀態 (Ref. 130435)
瀕危 (EN) (B1ab(iii)+2ab(iii)); Date assessed: 18 May 2020
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俗名同種異名新陳代謝捕食者生態毒物學繁殖成熟度產卵場產卵群集孕卵數卵卵發育
年龄/大小成長長度-重量長度-長度長度-頻率形態測量圖型態特徵仔魚稚魚動力學入添量豐度BRUVS
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).