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The bat ray (Myliobatis californica) is a euryhaline eagle ray found in muddy or sandy sloughs, estuaries and bays, kelp beds and rocky-bottomed shoreline in the eastern Pacific Ocean, between the Oregon coast and the Gulf of California. It is also found in the area around the Galápagos Islands.[2] The largest specimens can grow to a wingspan of 1.8 m and a mass of 91 kg.[3] Image File history File links Bat-ray-NOAA-Tony-Chess. ...
Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ...
Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anenomes) Placozoa (trichoplax) Subregnum Bilateria (bilateral symmetry) Acoelomorpha (basal) Orthonectida (flatworms, echinoderms, etc. ...
Typical Classes Subphylum Urochordata - Tunicatas Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with...
Orders see text The Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nostrils, scales, two-chambered hearts, and skeletons made of cartilage. ...
Superorders Galeomorpha Batoidea Selachimorpha Elasmobranchii is the subclass of cartilaginous fishes that includes skates, rays and sharks. ...
Families Anacanthobatidae Dasyatidae Gymnuridae Hexatrygonidae Myliobatidae Plesiobatidae Potamotrygonidae Rajidae Rhinobatidae Urolophidae Rajiformes is the order of true rays and skates, flat-bodied cartilaginous fishes related to sharks. ...
Genera Myliobatis Rhinoptera Pteromylaeus Aetobatus Aetomylaeus Eagle rays (Myliobatidae) are a family of mostly large rays living in the open sea rather than at the bottom of the sea. ...
Charles Lucien Jules Laurent Bonaparte (May 24, 1803 – July 29, 1857) was a French naturalist and ornithologist. ...
Georges Cuvier Baron Georges Léopold Chrétien Frédéric Dagobert Cuvier (August 23, 1769 - May 13, 1832) was a French naturalist and zoologist. ...
In biology, binomial nomenclature is the formal method of naming species. ...
Genera Myliobatis Rhinoptera Pteromylaeus Aetobatus Aetomylaeus Eagle rays (Myliobatidae) are a family of mostly large rays living in the open sea rather than at the bottom of the sea. ...
An estuary is a semi-enclosed coastal body of water which has a free connection with the open sea and within which sea water mixes with fresh water. ...
Families Alariaceae Chordaceae Laminariaceae Lessoniaceae Phyllariaceae Pseudochordaceae Kelp are large seaweeds, belonging to the brown algae and classified in the order Laminariales. ...
State nickname: Beaver State Official languages None Capital Salem Largest city Portland Governor Ted Kulongoski (D) Senators Ron Wyden (D) Gordon Smith (R) Area - Total - % water Ranked 9th 255,026 km² 2. ...
The Gulf of California (also known as the Sea of Cortez or Sea of Cortés; locally known in the Spanish language as Mar de Cortés or, much less frequently, Golfo de California) is a body of water that separates the Baja California Peninsula from the Mexican mainland. ...
Orthographic projection centred over the Galapagos For the novel Galapagos by Kurt Vonnegut, see: Galápagos (book) The Galápagos Islands are an archipelago of 13 volcanic islands, and associated islets and rocks located in the Pacific Ocean about 1,000 kilometers west of the coast of South America. ...
Diet
Bat rays feed on mollusks, crustaceans and small fish on the seabed, using their winglike pectoral fins to move sand and expose prey animals. They may also dig trenches up to 20 cm deep to expose buried prey, such as clams. Bat ray teeth are flat and pavementlike, forming tightly-packed rows that are used for crushing and grinding prey--the crushed shells are ejected and the flesh consumed. As with all elasmobranchs, these teeth fall out and grow continuously.[3][2] Classes Caudofoveata Aplacophora Polyplacophora Monoplacophora Bivalvia Scaphopoda Gastropoda Cephalopoda The molluscs or mollusks are the large and diverse phylum Mollusca, which includes a variety of familiar creatures well-known for their decorative shells or as seafood. ...
Classes Class Branchiopoda Subclass Phyllopoda Subclass Sarsostraca Class Remipedia Order Enantiopoda Order Nectiopoda Class Cephalocarida Order Brachypoda Class Maxillopoda Subclass Mystacocarida Subclass Copepoda Subclass Branchiura Subclass Pentastomida Subclass Tantulocarida Subclass Thecostraca Infraclass Cirripedia Class Ostracoda Order Metacopina Subclass Myodocopa Subclass Podocopa Class Malacostraca Subclass Eumalacostraca Subclass Hoplocarida Subclass Phyllocarida The...
Relation to humans While the bat ray has a venomous spine in its tail, like other stingrays, it is not considered dangerous and uses the spine only when attacked.
Currently, the bat ray is fished commercially in Mexico but not the United States. However, it is sometimes fished for sport for its fighting characteristics. Prehistorically, native tribes on the California coast (probably Ohlone), especially in the San Francisco Bay area, fished bat rays in large numbers, presumably for food.[4] Map of the Costanoan languages The Ohlone (formerly Costanoan) are an ethnic group whose members lived in what is now the San Francisco Bay Area and Monterey Bay areas of California until after the European discovery and settling of this area. ...
San Francisco Bay, San Pablo Bay, and the Golden Gate The San Francisco Bay is a shallow, productive estuary through which water draining of approximately forty percent of California, flowing in Sacramento and San Joaquin rivers from the Sierra Nevada mountains, enters the Pacific Ocean. ...
Commercial oyster growers have long believed bat rays (which inhabit the same estuarine areas favored for the industry) prey on oysters, and trapped them in large numbers. In fact, crabs (which are preyed upon by bat rays) are principally responsible for oyster loss. Bat rays are not considered endangered or threatened.[3] Ostrea edulis, Marennes dOléron Ostrea edulis, Marennes dOléron The name oyster is used for a number of different groups of mollusks which grow for the most part in marine or brackish water. ...
Life cycle Bat ray reproduction is ovoviviparous. They mate annually, in the spring or summer, and have a gestation period of nine to twelve months. Litter sizes range from two to ten — pups emerge with their pectoral fins wrapped around the body, and the venomous spine is flexible and covered in a sheath which sloughs off within hours of birth. Bat rays live up to 23 years.[3][5] Image File history File links Download high resolution version (1357x628, 63 KB) Summary Map created by me to show range of bat ray (Myliobatis californica). ...
Image File history File links Download high resolution version (1357x628, 63 KB) Summary Map created by me to show range of bat ray (Myliobatis californica). ...
Ovoviviparous animals develop within eggs that remain within the mother up until they hatch or are about to. ...
Bat rays copulate while swimming with synchronized wingbeats--the male under the female. The male inserts a clasper into the female's cloaca, channeling semen into the orifice to fertilize her eggs.[5] In biology, clasper is a body part of male insects that is used to hold the female during copulation. ...
References - ^ 1.1 1.2 Gill, T.N. (1865). "Note on the family of myliobatoids, and on a new species of Aetobatis". Ann. Lyc. Nat. Hist. N. Y. 8, 135–138.
- ^ 2.1 2.2 Florida Museum of Natural History. Bat Ray Biological Profile. Retrieved 2006-01-16.
- ^ 3.1 3.2 3.3 3.4 Monterey Bay Aquarium Online Field Guide. Bat Ray. Retrieved 2006-01-16.
- ^ 4.1 Gobalet, Kenneth W., Peter D. Schulz, Thomas A. Wake and Nelson Siefkin (2004). "Archaeological perspectives on native American fisheries of California, with emphasis on steelhead and salmon". Transactions of the American Fisheries Society 133 (4), 801–833.
- ^ 5.1 5.2 MarineBio.org. Bat Ray. Retrieved 2006-01-16
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