Rays Codexery

Bluntnose stingray

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Bluntnose stingray

big-ashb · via Wikipedia: Bluntnose stingray · CC BY 2.0

The bluntnose stingray is a bottom-dwelling species found in coastal habitats of the western Atlantic Ocean.[1][2] It is listed as near threatened by the International Union for Conservation of Nature.[3]

Scientific classification

  1. KingdomAnimalia
  2. PhylumChordata
  3. ClassChondrichthyes
  4. SubclassElasmobranchii
  5. OrderMyliobatiformes
  6. FamilyDasyatidae
  7. GenusHypanus
  8. SpeciesHypanus say

Named by (Lesueur, 1817)

Close relatives

Other species of Hypanus with a Codexery entry.

Sources: Wikipedia taxobox: Bluntnose stingray (CC BY-SA 4.0) · order, family and genus agree with WoRMS AphiaID 1042865 (CC BY 4.0)

Conservation status

Near Threatened (NT)

  1. LC
  2. NT▲ this species
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX
Population trend
Not held in our sources — see the assessment
Assessment published
2020

Source: IUCN Red List assessment

How big is it?

Size comparison: Bluntnose stingray and a personA 0.78 m long bluntnose stingray drawn to scale next to a 1.8 m tall person. Schematic shapes, not a likeness.0.78 m1.8 m

Largest length in the source, 0.78 m, next to a 1.8 m person.

Diagram: drawn by Codexery, schematic shapes to scale (not a likeness). Length: Wikipedia: Bluntnose stingray

Where the bluntnose stingray has been recorded

Where the bluntnose stingray has been recordedPlaces named in the text; marked places: Atlantic Ocean, Long Island, Florida KeysAtlantic OceanLong IslandFlorida Keys

Map: drawn by Codexery. Data: Natural Earth basemap (public domain) · place coordinates: Wikipedia (CC BY-SA 4.0)

Biology and range

The bluntnose stingray ranges from Long Island, New York south through the Florida Keys and the northern Gulf of Mexico to the Greater and Lesser Antilles, rarely reaching as far north as Massachusetts or as far south as Venezuela.[2] This species inhabits sandy or muddy flats in bays, lagoons, and estuaries at depths of 1 to 10 m, preferring salinities of 25–43 ppt and temperatures of 12 to 33 °C.[1] Adult rays seldom occur in seagrass meadows, though young rays use shoals as habitat.[1] Buried in sediment for most of daylight hours, the bluntnose stingray becomes more active after dark.[3][4]

Crustaceans, annelid worms, molluscs, and small bony fishes make up the diet of this benthic predator.[3][4] After an 11–12 month gestation that includes a period of arrested embryonic development, females deliver 1–6 pups each May.[3][5]

What the specialist sources record

The World Register of Marine Species accepts the scientific name Hypanus say (Lesueur, 1817) within the family Dasyatidae.[6] According to the Fishes of the Gulf of Mexico, the bluntnose stingray's disc is diamond-shaped, roughly a sixth wider than long, with outer corners that are broadly rounded.[7][8] The Fishes of the Gulf of Mexico further reports that dorsal coloration ranges from grayish to reddish or greenish brown, occasionally with bluish spots or a thin white margin on the disc.[9][8]

References

  1. Wikipedia, "Bluntnose stingray" (CC BY-SA 4.0), which cites: Carlson, J., "Hypanus say", 2020; Collins, J. Biological Profiles: Bluntnose Stingray . Florida Museum of Natural History Ichthyology Department. Retrieved on January 14, 2010.; "Life in the Chesapeake Bay", JHU Press, 1997, p. 174–175 (we also read that source) en.wikipedia.org
  2. Wikipedia, "Bluntnose stingray" (CC BY-SA 4.0), which cites: Carlson, J., "Hypanus say", 2020; "Fishes of the Gulf of Mexico: Myxiniformes to Gasterosteiformes", University of Texas Press, 1998, p. 179–180; Carlson, J., "Hypanus say", 2020 (we also read that source) en.wikipedia.org
  3. Wikipedia, "Bluntnose stingray" (CC BY-SA 4.0), which cites: Carlson, J., "Hypanus say", 2020 (original not read by us) en.wikipedia.org
  4. Wikipedia, "Bluntnose stingray" (CC BY-SA 4.0), which cites: Snelson, F.F. (Jr.), "Biology of the bluntnose stingray, Dasyatis sayi, in Florida coastal lagoons", Bulletin of Marine Science, 1989, p. 15–25; Hess, P.W., "Food Habits of Two Dasyatid Rays in Delaware Bay", Copeia, June 19, 1961, p. 239–241; "Fishes of the Sea: The North Atlantic and Mediterranean", MIT Press, 1991, p. 43; Collins, J. Biological Profiles: Bluntnose Stingray . Florida Museum of Natural History Ichthyology Department. Retrieved on January 14, 2010. (original not read by us) en.wikipedia.org
  5. Wikipedia, "Bluntnose stingray" (CC BY-SA 4.0), which cites: Carlson, J., "Hypanus say", 2020; Collins, J. Biological Profiles: Bluntnose Stingray . Florida Museum of Natural History Ichthyology Department. Retrieved on January 14, 2010.; Morris, J.A., J. Wyffels, F.F. Snelson (Jr.) (1999). "Confirmation of embryonic diapause in the bluntnose stingray Dasyatis say". Abstract from the American Ela (original not read by us) en.wikipedia.org
  6. World Register of Marine Species, Hypanus say (AphiaID 1042865). CC BY 4.0. marinespecies.org
  7. Wikipedia, "Bluntnose stingray" (CC BY-SA 4.0), which cites: "Fishes of the Gulf of Mexico: Myxiniformes to Gasterosteiformes", University of Texas Press, 1998, p. 179–180; Bean, T.H., "Catalogue of the Fishes of New York", University of the State of New York, 1903, p. 55–56 (we also read that source) en.wikipedia.org
  8. Open Library record, ISBN 0292752067 ("Fishes of the Gulf of Mexico"). CC0 (metadata); book content not read. openlibrary.org
  9. Wikipedia, "Bluntnose stingray" (CC BY-SA 4.0), which cites: "Fishes of the Gulf of Mexico: Myxiniformes to Gasterosteiformes", University of Texas Press, 1998, p. 179–180; Collins, J. Biological Profiles: Bluntnose Stingray . Florida Museum of Natural History Ichthyology Department. Retrieved on January 14, 2010.; Bean, T.H., "Catalogue of the Fishes of New York", University of the State of New York, 1903, p. 55–56; Snelson, F.F. (Jr.), "Biology of the bluntnose stingray, Dasyatis sayi, in Florida coastal lagoons", Bulletin of Marine Science, 1989, p. 15–25; Collins, J. Biological Profiles: B en.wikipedia.org

Each numbered sentence above was checked against the source it cites before publication. Sentences citing Wikipedia adapt text from the English Wikipedia article Bluntnose stingray (contributors), used under CC BY-SA 4.0; this entry is available under the same licence. Other sources were used for facts only; no text or images are copied from them.

Related entries

Same family (Dasyatidae)

Roughtail stingray Bathytoshia centroura, Bennett's stingray Hemitrygon bennetti, Black-spotted whipray Maculabatis astra, Blackedge whipray Himantura marginata, Blackish stingray Hemitrygon navarrae

More in Rays

Broad stingrayCommon stingrayGiant stumptail stingrayGroovebelly stingrayDasyatis marmorataPitted stingrayShort-tail stingraySouthern stingrayThorntail stingrayMarbled whiprayRoughback whiprayWhite-edge freshwater whipray

Test yourself

Three questions drawn from this entry’s sources. Pick an answer to check it.

1. What is the scientific name of the bluntnose stingray?

Correct.

Not quite. The answer is Hypanus say.

2. Who first scientifically described the bluntnose stingray?

Correct.

Not quite. The answer is Charles Alexandre Lesueur.

3. To which biological family does the bluntnose stingray belong?

Correct.

Not quite. The answer is Dasyatidae.

Answers checked against the source article

Sources

Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.

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