Common name: Mottled Stingray

Scientific name: Urogymnus asperrimus (Bloch & Schneider, 1801)
Close-up of a Porcupine Ray (Urogymnus asperrimus) over the ocean sandy bottom. SeychellesA Porcupine Stingray hiding in the sand on a coral reef
Porcupine ray - Urogymnus asperrimus. Komodo National Park, Indonesia.Porcupine ray (Urogymnus asperrimus) close up. Rare stingray, also known as Porcupine whipray or Thorny ray.

General information

The Mottled Stingray, also known as the Roughskin Stingray or Mangrove Whipray (Urogymnus asperrimus), is a unique species of stingray that is not commonly found in the aquarium trade due to its large size and conservation status. It is distinguished by its mottled appearance and rough-textured skin, which is covered in small thorny denticles. This species is part of the Dasyatidae family and is known for its wide, diamond-shaped pectoral fin disc and long, slender tail equipped with a venomous stinger.

Details

Recommended minimum tank volume
10,000 liter (2,600 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8 to 8.4
Average size
3 m (10′)
Care level
Very difficult Needs very large systems
Diet
Carnivore Feeds on mollusks and crustaceans
Social
Solo Territorial, best kept alone
Reefsafe
No May harm small fish/inverts
Aggression
Aggresive Can be aggressive to tankmates
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Sharks and Rays
    Elasmobranchii
  4. Order
    Stingrays
    Myliobatiformes
  5. Family
    Stingrays
    Dasyatidae
  6. Genus
    Cowtail Stingray
    Urogymnus
  7. Species
    Mottled Stingray
    Urogymnus asperrimus (Bloch & Schneider, 1801)
  8. Synonyms
    Anacanthus africanus (Bloch & Schneider, 1801)
    Rachinotus africanus (Bloch & Schneider, 1801)
    Raja africana Bloch & Schneider, 1801
    Raja asperrima Bloch & Schneider, 1801
    Rhachinotus africanus (Bloch & Schneider, 1801)
    Urogymnosus africanus (Bloch & Schneider, 1801)
    Urogymnus africanus (Bloch & Schneider, 1801)
    Urogymnus aperrimus (Bloch & Schneider, 1801)
    Urogymnus asperrimus solanderi Whitley, 1939
    Urogymnus rhombeus Klunzinger, 1871

Care

Due to their potential size and specialized habitat requirements, Mottled Stingrays are not recommended for the average home aquarium. They require very large systems with plenty of open sand or mud substrate to mimic their natural mangrove and estuarine environments. These rays are sensitive to water quality and require pristine conditions with efficient filtration. They are carnivorous, feeding on a diet of mollusks, crustaceans, and small fish in the wild, so a varied diet of meaty foods is essential in captivity.

Reproduction

Mottled Stingrays are ovoviviparous, meaning they give birth to live young after the eggs hatch inside the female's body. Little is known about their reproductive habits in the wild, and breeding them in captivity is extremely rare and challenging due to their size and specific requirements.

Habitat

The Mottled Stingray is found in shallow coastal waters, often associated with mangrove forests and estuaries. They are benthic dwellers, spending most of their time on the bottom. Their range extends across the Indo-West Pacific, from the eastern coast of Africa to the western Pacific Ocean, including the Red Sea and the Persian Gulf.