Stingrays and sharks belong to … [16] Like other stingrays, the longtail stingray is aplacental viviparous with the developing embryos sustained initially by yolk and later by histotroph ("uterine milk") produced by the mother. Their disc has flattened pectoral fins that are continuous and extend from their head to their tail base with broadly rounded outer corners and straight front margins. The front margins are nearly straight, meeting the tip of the snout at a blunt angle. Longtail Stingray, Hypanus longa. [8] The dorsal coloration varies from plain reddish-brown to dark gray, and the underside is light. I believe they will soon be reclassified as Near Threatened as females give birth in shallow waters, they are subject to heavy fishing pressure at certain times of the year, they have slow growth rates, long reproduction cycles with low productivity, and there is on-going habitat destruction of coastal bays and mangrove lagoons within their nursery areas. They are a dimorphic species with females being larger than males. This species inhabits sandy or muddy flats to a depth of 90 m (300 ft), often near rocky or coral reefs, or in estuaries. Other language common names are gladde pijlstaartrog (Dutch), ignelivatoz (Turkish), isokeihäsrausku (Finnish), kortstert-pylstert (Afrikaans), oru (Maori), pastinaca (Italian/Spanish), peitschenrochen (German), pigrokke (Danish), pilrokke (Danish/Norwe… Measuring up to 1.56 m (5.1 ft) across, this species has a rhomboid pectoral fin disc, a lower (but not upper) fin fold on the tail, and numerous dermal denticles along the back and behind the stinging spine. This fish has very recently been reclassified from Dasyatis longa. After a gestation period of 10 to 11 months one to five miniature adults are born that have disc widths of approximately 40 cm (16 inches). The short-tail stingray or smooth stingray (Bathytoshia brevicaudata) is a common species of stingray in the family Dasyatidae.It occurs off southern Africa, typically offshore at a depth of 180–480 m (590–1,570 ft), and off southern Australia and New Zealand, from the intertidal zone to a depth of 156 m (512 ft). Elasmobranch landing in Mexico are poorly monitored and lack species specific details. They have a maximum total length of 2.6 meters (8 feet 5 inches) and disc width of 1.58 meters (5 feet 2 inches), and 46.4 kg (102 lbs) in weight. Antonyms for long-tailed stingray. The tail may also be used to maneuver in the water, but its primary purpose is protection. [6] The longtail stingray closely resembles the diamond stingray (D. dipterura), which is found in the same region, but can be distinguished by its lack of an upper tail fold. A stingray’s tail is long, thin, and tapered, much like a whip. Globally, there are thirty-eight species in the genus Hypanus, of which five are found in Mexican waters, three in the Atlantic and two in the Pacific Ocean. The tail can be about two and a half times the length of the ray’s body and is long, slender and whip-like. Stingrays are ovoviviparous, … Each spine contains venom, and the stingray’s tail … In most cases, when the sting enters a person's body, the pressure causes the protective sheath to tear. The longest tail found at the depths of the ocean belongs to the whiptail stingray family, which inhabits warm to tropical waters all over the world from the Pacific Ocean to the Mediterranean Sea. The Longtail Stingray is poorly studied and very limited information is available pertaining to their biology, distribution, and fisheries. These two species may have evolutionarily diverged with the formation of the Isthmus of Panama (c. 3 Ma). It has a diamond-shaped pectoral fin disc about a sixth wider than long, with the outer corners broadly rounded. The longtail stingray feeds mainly on bottom-dwelling bony fishes and crustaceans. These animals have a large, flat-like body that measures up to an average of 6.6 feet in width, although some species are much smaller. 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They spend the majority of their time in deeper waters but females migrate to shallow waters in the spring to deliver their offspring. The cowtail stingray is a species of stingray in the family Dasyatidae, widespread in the Indo-Pacific region and occasionally entering freshwater habitats. Adult females have a single functional ovary. It is caught for food, likely throughout its range, but specific fishery data is lacking. It is found off southern Africa, Australia, and New Zealand from the intertidal zone to a depth of 440 m (1,440 ft). The Longtail Stringray is a rare deep water species found within soft and sandy bottoms and within coral and rocky reefs on the continental shelf and in estuaries at depths up to 90 m (300 feet). [3], The longtail stingray is found along the tropical Pacific coast of the Americas, from central Baja California (though it may occur as far north as San Diego, California) to Colombia, including the Revillagigedo and Galapagos Islands. The longtail stingray (now Bathytoshia lata, previously Dasyatis thetidis) goes by many multiple names, including the thorntail stingray and black stingray. Tail length: 58 cm (23 inches). The Longtail Stingray is a resident of Mexican waters of the Pacific Ocean but has a limited distribution being found from Magdalena Bay, Baja California Sur, southward along the southwest coast of Baja, in the lower half of the Sea of Cortez, and along the coast of the mainland south to Guatemala. 5 out of 5 stars (16) 16 reviews. Stingrays ripple the outer edges of their disc-like bodies to thrust forward. This bottom-dwelling species typically inhabits sandy or muddy areas with patches of invertebrate cover, at a depth of 15–50 m. It is seasonally migratory, overwintering in offshore waters and moving into coastal habitats for summer. The stinger, or spine near the base of the tail, is hard and sharp with backward pointing barbs (retroserrations) that can cause a jagged cut. They feed on decapods, molluscs, stomatopods, and bony fish. Synonyms for long-tailed stingray in Free Thesaurus. A litter contains 1–5 young, each measuring about 40 cm (16 in) across. Stingrays range in size from about as small as a dinner plate to as big as 16.5 feet (5 meters) long including the tail, according to National Geographic. Numerous small dermal denticles are also found between the eyes and on the tail behind the spine. [1], The tail spine of the longtail stingray is potentially dangerous to humans. [1], International Union for Conservation of Nature, 10.2305/IUCN.UK.2016-3.RLTS.T60157A104126060.en, 10.1643/0045-8511(2001)001[0615:PRWTSG]2.0.CO;2, "Feeding ecology of elasmobranch fishes in coastal waters of the Colombian Eastern Tropical Pacific", "First record of a morphological abnormality in the longtail stingray, https://en.wikipedia.org/w/index.php?title=Longtail_stingray&oldid=984926850, Taxonbars with automatically added original combinations, Creative Commons Attribution-ShareAlike License, This page was last edited on 22 October 2020, at 22:44. The ray doesn't have direct control over the sting mechanism, only over the tail. The Longtail Stingrays are a minor species of the artisanal elasmobranch fishery along the Pacific coast of Mexico and the Gulf of California. It’s a large bird where the male bird has an exceptionally long tail. Stingrays have a flattened body that has pectoral fins and a long tail. They are solitary in nature. 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