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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Deuterodon: Greek, deuter = second + Greek, odous = teeth (Ref. 45335); aphos: Specific name from the Greek aphos, meaning dark, obscure, in allusion to the dark color of the water of rio Lençois, the type locality..
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
South America: Rio Lençois in Bahia, Brazil.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 5.6 cm SL ذكر/ مختلط الجنس; (Ref. 54751)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
فقرات: 36. Distinguished from all other characid fishes by the following combination of characters: infraorbitals fused uniquely, resulting in less than six autogenous bones; presence of a single tooth row in the premaxilla; presence of cheirodontin-like teeth, somewhat pedunculated, expanded and compressed distally, with cusps similar in shape and perfectly aligned along dorsal margin; ventral margin of toothed portion of maxillary curved towards the ventral margin of the premaxilla and maxillary teeth forming a continuous series with premaxillary teeth; margins of pre- and postzygapophyses with projections anteriorly and posteriorly directed; accumulation of epithelial cells forming globular structures distributed over head and scales; and base of anal-fin without scales covering basal portion of unbranched and anterior branched rays (Ref. 54751).
Found in shallow, headwater stream with fast water current over a rocky bottom and margin, with a small amount of riparian or submerged vegetation (Ref. 54751). Feeds on filamentous algae, terrestrial vegetal fragments and insects (Ref. 54751).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Terán, G.E., M.F. Benitez and J.M. Mirande, 2020. Opening the Trojan house: phylogeny of Astyanax, two genera and resurrection of Psalidodon (Teleostei: Characidae). Zool. J. Lin. Soc. 190(4):1217-1234. (Ref. 123753)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [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): 2.5 ±0.25 se; based on food items.
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).
