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					 			      	Butterfly Ray - Wikipedia, the Free Encyclopedia
					 			      	 
 Wikipedia's information about the butterfly ray. https://en.wikipedia.org/wiki/Butterfly_ray
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					 			      	Spiny Butterfly Ray - Wikipedia, the Free Encyclopedia
					 			      	 
 Wikipedia's information about the spiny butterfly ray. https://en.wikipedia.org/wiki/Spiny_butterfly_ray
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					 			      	ADW: Butterfly Rays - Gymnuridae
					 			      	 
 As their name indicates, butterfly rays have extremely wide pectoral fins that resemble butterfly wings. These fins create a disc that is more than 1.5 times as broad as it is long and extends forward to include the head, ending in a blunt, angular, short snout. http://animaldiversity.org/accounts/Gymnuridae/
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					 			      	Gymnura Micrura (Smooth Butterfly Ray)
					 			      	 
 The IUCN Red list of threatened species information about the smooth butterfly ray. http://www.iucnredlist.org/details/60115/0
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					 			      	Gymnura altavela (Spiny Butterfly Ray)
					 			      	 
 Find population statistics and information about the Spiny Butterfly Ray from IUCN Red List of Threatened Species http://www.iucnredlist.org/details/63153/0
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					 			      	Spiny Butterfly Ray - Gymnura altavela - Elasmodiver
					 			      	 
 Spiny butterfly ray information and images of Gymnura altavela http://www.elasmodiver.com/SpinyButterflyRay.htm
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					 			      	Huge Butterfly Ray (71-inch) Caught Surf Fishing! - YouTube
					 			      	 
 Surfcasting catch of a large Butterfly Ray caught while surf fishing on a Long Island NY beach. https://www.youtube.com/watch?v=OyrRTVQR4kY
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					 			      	Spiny Butterfly Ray - Gymnura Altavela - ARKive
					 			      	 
 Learn more about the Spiny butterfly ray with amazing Spiny butterfly ray  photos and facts. http://www.arkive.org/spiny-butterfly-ray-/gymnura-altavela/
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					 			      	FLMNH Ichthyology Department: Smooth Butterfly Ray
					 			      	 
 Florida Museum of Natural History Ichthyology Department. This page contains educational sections about the biology, ecology and conservation of the Smooth Butterfly Ray. http://www.flmnh.ufl.edu/fish/discover/species-profiles/gymnura-micrura
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					 			      	FLMNH Ichthyology Department: Spiny Butterfly Ray
					 			      	 
 Florida Museum of Natural History Ichthyology Department. This page contains educational sections about the biology, ecology and conservation of the Spiny Butterfly Ray. http://www.flmnh.ufl.edu/fish/discover/species-profiles/gymnura-altavela
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					 			      	California Butterfly Ray - MexFish
					 			      	 
 The California Butterfly Ray, Gymnura marmorata, whose common Spanish name is raya mariposa californiana, is a species in the family Gymnuridae, the Butterfly Rays, known as raya mariposas in Mexico. http://www.mexfish.com/mexico/california-butterfly-ray/