Classification / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Geophaginae
Etymology: Dicrossus: Greek, di = two + Greek, krossoi = tassel (Ref. 45335); gladicauda: The specific name is derived from the Latin gladius, meaning sword, and cauda, meaning tail, alluding to the sword-like streamer of the dorsal lobe of the caudal fin in adult males..
Issue
Species name erroneously spelled gla*u*dicauda in CofF (February, 2010).
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Sống nổi và đáy; pH range: 4.4 - ?. Tropical; 24°C - ? (Ref. 76847)
South America: lower río Atabapo drainage in Colombia.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.2 cm SL con đực/không giới tính; (Ref. 76847)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các tia vây lưng cứng (tổng cộng) : 14 - 15; Các vây lưng mềm (tổng cộng) : 8; Tia cứng vây hậu môn: 3; Tia mềm vây hậu môn: 6 - 7. Distinguished from all congeners by the conspicuously asymmetrical caudal fin characterized by the long filamentous streamer of its dorsal lobe in adult males. Most similar to Dicrossus filamentosus, but can be differentiated by having a lyreate caudal fin, both the marginal rays of the dorsal and the ventral part of caudal fin are distally produced into a filamentous streamer (Ref. 76847).
Found in a typical blackwater habitat with clear, acidic and very soft tea-colored water, with total and temporary hardness <1° dH (Ref. 76847). Encountered along the bank of small rivulet in zones of extremely shallow water, approximately between 10 and 50 cm depth, where this species occurs either in a layer of dead leaves covering the bottom of the bank side or among the submerged terrestrial vegetation (Ref. 76847).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Schindler, I. and W. Staeck, 2008. Dicrossus gladicauda sp. N.- a new species of crenicarine dwarf cichlids (Teleostei: Perciformes: Cichlidae) from Colombia, South- America. Vertebrate Zoology 58(1):67-73. (Ref. 76847)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00283 - 0.01852), b=3.13 (2.91 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).