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Himantura uarnak  (Gmelin, 1789)

Honeycomb stingray
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Himantura uarnak
Picture by Randall, J.E.


Australia country information

Common names: Coachwhip ray, Longtail ray, Longtail stingray
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Western Australia, Northern Territory, Queensland, and New South Wales (Ref. 7300). Museum: CSIRO CA1245. Also Ref. 1602, 5978, 33390, 37816, 116003.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Last, P.R. and J.D. Stevens, 1994
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays)
Etymology: Himantura: Greek, iman, imantos = thong, strap + Greek, oura = tail (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; brackish; reef-associated; amphidromous (Ref. 51243); depth range 20 - 50 m (Ref. 28016).   Subtropical; 23°C - 26°C (Ref. 12468); 38°N - 37°S, 34°E - 149°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: Persian Gulf (Ref.80050); Red Sea (and eastern Mediterranean via Suez Canal) to southern Africa and French Polynesia, north to Taiwan, south to Australia. Also in the Arafura Sea (Ref. 9819). Collected from the estuary of the River Ganges (Ref. 33178). This name has been used for a number of similar spotted species (Ref. 6871). Probably a species complex (Ref. 35766). Its identity has been confused in many publications and Micronesian specimens should be re-examined (Ref. 37816).

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 82 - 84 cm
Max length : 200 cm WD male/unsexed; (Ref. 3263); common length : 45.0 cm TL male/unsexed; (Ref. 5450); max. published weight: 120.0 kg (Ref. 3263)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Huge stingray with conspicuous dark spots on a light brown disc; spots well-spaced in young but crowded to form reticulated pattern in adult; white ventrally; tail marked with bands of black and white; snout sharply pointed; disc with narrowly rounded outer corners, and tail long, slender and nearly three times body length when intact, with no caudal finfolds; disc without thorns but with band of flat denticles along midback (in adults); usually 1 medium-sized sting on tail (Ref. 5578).

Biology     Glossary (e.g. epibenthic)

Common off sandy beaches and in shallow estuaries and lagoons; also found in sandy areas of coral reefs (Ref. 9710). Also offshore down to 50 m depth (Ref. 5578). May enter fresh water (Ref. 5578). Feeds on small fishes, bivalves, crabs, shrimps, worms (Ref. 3263) and jellyfishes (Ref. 37816). Ovoviviparous (Ref. 50449). Common catch of the demersal tangle net, bottom trawl, longline and beach seine fisheries (Ref.58048). Popular angling fish (Ref. 3263). Not esteemed as a food fish (Ref. 3263). Used in Chinese medicine (Ref. 12166). Tail is used as a decorative item (Ref. 27550). Utilized for its meat, skin (high value) and cartilage (Ref.58048).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205). Distinct pairing with embrace (Ref. 205). Bears 3 to 5 young in the summer (Ref. 5578). Size at birth about 21 (Ref.58048) - 28 cm WD (Ref. 6871).

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

Fricke, R., 1999. Fishes of the Mascarene Islands (Réunion, Mauritius, Rodriguez): an annotated checklist, with descriptions of new species. Koeltz Scientific Books, Koenigstein, Theses Zoologicae, Vol. 31:759 p. (Ref. 33390)

IUCN Red List Status (Ref. 115185)

  Vulnerable (VU) (A2bd)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Venomous (Ref. 27550)




Human uses

Fisheries: commercial; gamefish: yes
FAO(Publication : search) | FishSource |

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 24.2 - 28.6, mean 27.8 (based on 334 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00767 - 0.03431), b=3.04 (2.86 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  3.6   ±0.6 se; Based on diet studies.
Resilience (Ref. 69278):  Very Low, minimum population doubling time more than 14 years (Fec=3-5).
Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100) .
Price category (Ref. 80766):   Low.