Urolophidae
Sign in to saveThe Urolophidae are a family of rays in the order Myliobatiformes, commonly known as stingarees or round stingrays. This family formerly included the genera Urobatis and Urotrygon of the Americas, which are presently recognized as forming their own family Urotrygonidae. Stingarees are found in the Indo-Pacific region, with the greatest diversity off Australia. They are sluggish, bottom-dwelling fish that have been recorded from shallow waters close to shore to deep waters over the upper continental slope. Measuring between long, these rays have oval to diamond-shaped pectoral fin discs and rel
Species
round rays
FAMILY
- KingdomAnimalia
- PhylumChordata
- ClassElasmobranchii
- OrderMyliobatiformes
- FamilyUrolophidae
Die Rundstechrochen (Urolophidae) sind in warmen Bereichen im Atlantik und im Indopazifik verbreitet. Inhaltsverzeichnis 1 Merkmale 2 Systematik 3 Literatur 4 Einzelnachweise 5 Weblinks Merkmale Die eher kleinen Rochen werden 11 bis 80 Zentimeter lang. Sie haben eine kleine Schwanzflosse, die einen gesägten Stachel trägt. Einige australische Arten der Gattung Trygonoptera besitzen auch eine Rückenflosse. Ihre Körperscheibe ist ungefähr 1,3 mal breiter als lang. Rundstechrochen sind lebendgebärend. Systematik Trygonoptera imitata Urolophus gigas Urolophus kapalensis Es gibt drei Gattungen mit 24 Arten: Gattung Spinilophus Yearsley & Last, 2016[1] Spinilophus armatus (Müller & Henle, 1841). Gattung Trygonoptera Trygonoptera galba Last & Yearsley, 2008 Trygonoptera imitata Yearsley, Last & Gomon, 2008 Trygonoptera mucosa (Whitley, 1939). Trygonoptera ovalis Last & Gomon, 1987. Trygonoptera personata Last & Gomon, 1987. Trygonoptera testacea Müller & Henle, 1841. Gattung Urolophus Urolophus aurantiacus Müller & Henle, 1841. Urolophus bucculentus Macleay, 1884. Urolophus circularis McKay, 1966. Urolophus cruciatus (Lacépède, 1804). Urolophus deforgesi Sér
via GBIF
Museum specimens
- Specimen records
- 23
- Family
- Urolophidae
- Collections
- SDNHM, NMV, ANSP, SAMA, ODU, QM
- Recorded in
- United States, Australia, Mexico, Panama
~8 min read
Encyclopedic overview
6 sectionsContents
- Taxonomy and phylogeny
- Distribution and habitat
- Description
- Biology and ecology
- Human interactions
- References
The Urolophidae are a family of rays in the order Myliobatiformes, commonly known as stingarees or round stingrays. This family formerly included the genera Urobatis and Urotrygon of the Americas, which are presently recognized as forming their own family Urotrygonidae. Stingarees are found in the Indo-Pacific region, with the greatest diversity off Australia. They are sluggish, bottom-dwelling fish that have been recorded from shallow waters close to shore to deep waters over the upper continental slope. Measuring between long, these rays have oval to diamond-shaped pectoral fin discs and relatively short tails that terminate in leaf-shaped caudal fins, and may also have small dorsal fins and lateral skin folds. Most are smooth-skinned, and some have ornate dorsal color patterns.
Stingarees feed on or near the sea floor, consuming small invertebrates and occasionally bony fishes. They are aplacental viviparous, meaning their embryos emerge from eggs inside the uterus, and are sustained to term first by yolk and later by maternally produced histotroph ("uterine milk"). As far is known, the gestation period lasts around a year and litter sizes tend to be small. Stingarees have one or two relatively large, venomous stinging spines on their tail for defense, with which they can inflict a painful wound on humans. Generally, stingarees have no economic value. Some species form a substantial component of the bycatch of commercial trawl fisheries.
Excerpted from Wikipedia’s “Urolophidae” article, available under the CC BY-SA 4.0 licence.