分類 / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Fluviphylacidae (American lampeyes)
Etymology: Fluviphylax: Latin, fluvius = river + Greek,phylax, -akos = guardian (Ref. 45335); gouldingi: Named for the American ichthyologist Michael Goulding..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; 深さの範囲 0 - 1 m (Ref. 123788). Tropical
South America: Brazil.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 1.4 cm SL オス/雌雄の選別がない; (Ref. 123788); 1.4 cm SL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 5 - 6; 臀鰭: 7 - 8; 脊つい: 27 - 28. This species is distinguished from its congeners by having a sharp ventral process on the opercle (vs. absent); subopercle narrow (vs. wide); interopercle narrow (vs. wide); filamentous second pelvic-fin ray (vs. not filamentous); all cephalic lateral line system opened in males and females (vs. closed); no mesethemoid (vs. present); presence of an orange bright blotch on the preorbital region of both males and females (vs. absent); similar to F. wallacei and differs from all other congeners by having a slender retroarticular (vs. deep); opercle triangular-shaped (vs. scale-shaped); males with an orange colouration on the posterior region of the pectoral fin (vs. hyaline); head neuromasts not placed inside shallow groves (vs. in shallow grooves). Other characters not unique but useful to identify tis species include: second and fourth pharyngobranchial tooth plates not enlarged (vs. enlarged); no teeth on second pharyngobranchial plate (vs. present); ventral process of posttemporal short (vs. long); with rostral cartilage (vs. absent); anterodorsal process of opercle non-existent (vs. present); an elongate and pointed anal fin reaching vertical to dorsal-fin tip (vs. short and rounded) (Ref. 123788).
Collected close to the deadwood in a shallow, slow flowing, high transparency black-water stream, about 30-50 cm deep with dense vegetation. In the small stream they were found in small shoals of about 3-5 individuals swimming near the surface, while in the Lago Tiburiari this species formed larger shoals of about 20 individuals. Found sympatrically was the miniature scoloplacid, Scoloplax dolicholophia (Ref. 123788),
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Bragança, P.H.N., 2018. Fluviphylax gouldingi and F. wallacei, two new miniature killifishes from the middle and upper Rio Negro drainage, Brazilian Amazon (Teleostei, Cyprinodontiformes, Cyprinodontoidei). Spixiana (München) 41(1):133-146. [German translation appeared in DKG-Journal, 52(1):Feb. 2020:1-18.] (Ref. 123788)
Human uses
用具
特記事項
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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 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00207 - 0.01392), b=3.08 (2.86 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
