Elasmobranchii (hajar och rockor) (sharks and rays) >
Myliobatiformes (Stingrays) >
Dasyatidae (Stingrays) > Urogymninae
Etymology: colarensis: Named for its type locality, from the proximities of Colares Island, Marajó Bay, close to Colares I., district of Colares, Pará State, Brazil.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina; djupintervall 6 - ? m (Ref. 56441). Tropical
Southwest Atlantic: endemic to Brazil.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 207 cm TL hane/ej könsbestämd; (Ref. 56441)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Diagnosis: Disc diamond-shaped (rhomboid). Snout elongated, preorbital distance 35.7-37.7% in DW. Lower lip outline with a dark, well-defined band. Shoulder region to base of tail with a row of small tubercles along the midline of disc, tubercles somewhat randomly distributed. Posterior margin of the pectoral fins uniformly rounded; of the triangular-shaped pelvic fins, almost straight or slightly sinuous, with its tips exceeding posterior margin of disc. Dorsal caudal keel absent in the holotype, vestigial in the 2 paratypes (Ref. 56441).
Minimum depth from Ref. 58018.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Santos, H.R.S., U.L. Gomes and P. Charvet-Almeida, 2004. A new species of whiptail stingray of the genus Dasyatis Rafinesque, 1810 from the Southwestern Atlantic ocean (Chondrichthyes: Myliobatiformes: Dasyatidae). Zootaxa 492:1-12. (Ref. 56441)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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=0.01023 (0.00486 - 0.02155), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.7 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).