分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers)
鱂形目 (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines)
溪鱂科 (Rivulines) > Cynolebiinae
Etymology: nigromaculatus: From the Latin adjective 'nigromaculatus', meaning with black spots, in reference to the color pattern of dorsal fin in males, a condition unique among congeners.
Eponymy: Charles J Simpson, California, was a friend of the author. We have been unable to find further details. (Ref. 128868), visit book page.
More on author: Costa.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 底中水層性; pH range: 5.5 - ?; 深度上下限 0 - ? m (Ref. 75131).
South America: seasonal canals in the floodplains of rio da Prata, rio Aporé drainage, upper rio Paraná basin in Brazil.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 2.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 75131); 2.2 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 15 - 19; 臀鰭軟條: 17 - 22; 脊椎骨: 24 - 25. Differs from all other species of the genus by possessing 2-4 black spots on posterobasal portion of dorsal fin in males. In addition, it can be separated from all congeners by the unique combination of the following characters: absence of pelvic fin and pelvic girdle; vertebrae 24-25; absence of second pharyngobranchial teeth; absence of ventral process of posttemporal; anal fin with 17-20 rays in females; body depth 33.5-36.0% SL in males; maximum adult size 25.6 mm SL; bright blue bars on flank in males much narrower than interspace; side of head in males with five alternating bright blue and pink to red bars; short postorbital pink strike connecting pink bars 2 and 3; anterior and posterior margins of iris bright blue; dark gray band bordered by a bright blue line on distal margin of dorsal and anal fins, and posterior margin of caudal fin in males; ground color of dorsal and anal fins orange in males; absence of bars on unpaired fins in males; and presence of yellow dots on the caudal fin in males (Ref. 75131).
Body shape (shape guide): short and / or deep.
Inhabits temporary shallow canals (about 50 cm deep) in the floodplains, with light yellow water (Ref. 75131).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Costa, W.J.E.M., 2007. Simpsonichthys nigromaculatus, a new miniature seasonal killifish from the upper rio Paraná basin, central Brazil (Teleostei: Cyprinidontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 18(3):199-203. (Ref. 75131)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
易受傷害 (VU) (D2); Date assessed: 07 November 2018
人類使用
工具
特別的報告
下載 XML
網路資源
基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |