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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Leptolebias: Greek, leptos = thin + Greek,lebias, -ou = a kind of fish (Ref. 45335); itanhaensis: The specific name itanhaensis denotes the presence of this species in the Itanhaém river basin, an isolated small coastal drainage of southeastern Brazil.
More on author: Costa.
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة; pH range: 3.5 - 4.0; نطاق العمق 0 - ? m (Ref. 75888). Tropical
South America: seasonal pools in the Itanhaém river basin in southeastern Brazil.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 2.2 cm SL ذكر/ مختلط الجنس; (Ref. 75888)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشعة الظهرية الناعمة (المجموع) : 13 - 16; أشعه شرجية لينه: 16 - 19. Diagnosed from other species of the genus Leptolebias except Leptolebias aureoguttatus by having four caudal neuromasts (vs. two), and horizontal golden lines on caudal fin in males (vs. no similar color pattern). Differs from Leptolebias aureoguttatus by possessing the following characters: two dark-red stripes on dorsal and ventral submarginal portion of caudal restricted to anterior portion of fin in males (vs. along all fin extension); male caudal-fin stripes parallel to fin rays, not branching posteriorly (vs. branching posteriorly); basal portion of dorsal fin with dark-orange small spots in males (vs. dark-red to dark-brown short transverse bars); and five or six lateral mandibular neuromasts (vs. three or four). Can also be differentiated from all congeners in the number of caudal fin rays, 27-31 vs. 25-28 (Ref. 75888).
Occurs in shallow (about 10-40 cm deep), temporary channels within dense rainforest, in tea-colored and acidic (pH 3.5-4.0) water with litter at the bottom (Ref. 75888).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Costa, W.J.E.M., 2008. Monophyly and taxonomy of the Neotropical seasonal killifish genus Leptolebias (Teleostei: Aplocheiloidei: Rivulidae), with the description of a new genus. Zool. J. Linn. Soc. 153:147-160. (Ref. 75888)
IUCN Red List Status (Ref. 130435: Version 2024-2)
استخدامات بشرية
أدوات
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [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).
مستوى غذائي (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
