Gymnura micrura. Bloch & Schneider, Synonyms. Aetoplatea Valenciennes in Müller & Henle, ; Phanerocephalus Gratzianov, ; Pteroplatea Müller & Henle, The butterfly rays are the rays forming the genus Gymnura and the family Gymnuridae. Gymnura micrura. This diamond-shaped ray is much wider than it is long, usually 3 to 4 feet wide, and its short tail lacks the ray’s usual spine. PDF | An extensive taxonomic revision of Gymnura micrura based on external and internal morphology, and considering specimens from its entire geographical .
|Published (Last):||4 July 2012|
|PDF File Size:||2.89 Mb|
|ePub File Size:||17.32 Mb|
|Price:||Free* [*Free Regsitration Required]|
Moderate to high vulnerability 50 of Upper surface gray, brown, light green or purple with round spots. The ventral side is lightly colored while the dorsal side is variable in color. The dorsal spine on the tail is absent; therefore, no stinging can occur to harm humans. The body of butterfly rays is flattened and surrounded by an extremely broad disc formed by the pectoral finswhich merge in front of the head. Discover Fishes Gymnura micrura.
The absence of a tail spine and the presence of a keel on the upper surface of the micrhra separates G.
Last; and Yearsley, eds. Synonyms for Gymnura micrura include Pteroplatea micrura, Raja micrura and Gymnura micura.
They are found in warm oceans worldwide, and ggymnura in estuaries. Dentition The upper jaw generally has 60 to teeth and lower jaw generally has 52 to teeth, with each tooth having one short sharp conical cusp on a somewhat swollen base. May enter brackish estuaries or hyper-saline lagoons Ref.
Phylogenetic diversity index Ref. The gymnur strategy that these rays use is dependent on the abundance of prey in their environments. This page was last edited on 22 Augustat Distinctive Features This is a broad, diamond-shaped ray with a very short tail lacking a dorsal spine and a protruding snout. Reproduction Exhibits ovoviparity aplacental viviparitywith 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 specialized structures.
Short description Morphology Morphometrics Broad, diamond-shaped ray with a very short tail lacking a dorsal spine Ref.
Prefers neritic waters of the continental shelf and usually found on soft bottoms. This species is known to enter brackish estuaries or hyper-saline lagoons. Rays of the World. Gymnuridae Fowler gumnura, They are most commonly found in neritic waters, but are also known to enter brackish estuaries and hypersaline lagoons.
The species is currently classified as data deficient by the IUCNas not information about population dynamics is known to assess its conservation status. There are currently 10 species in this genus others are considered synonyms: The IUCN is a global union of states, governmental agencies, and non-governmental organizations in a partnership that micrra the conservation status of species.
The dorsal surface of this ray varies greatly in color, either gray, brown, or light green. Danger to Humans This is a small ray that does not possess a spine. Ggymnura by Froese, Rainer. Modified by Capuli, Estelita Emily. In the western Atlantic it occurs from Maryland to Brazil. Add your observation in Fish Watcher Native range All suitable habitat Gynmura map Year This map was computer-generated and has not yet been reviewed.
WoRMS – World Register of Marine Species – Gymnura micrura (Bloch & Schneider, )
They have a very short, thread-like, tail. Journal of Gymnurs Biology. It is tolerant of a variety of salt content, from brackish river mouths to highly saline lagoons, as long as there is a muddy or sandy bottom to hunt small fish and invertebrates.
Uses authors parameter CS1 maint: Species of Gymnura in FishBase.
Exhibit ovoviparity aplacental viviparitywith embryos feeding initially on yolk, then miccrura additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures Ref. Geographical Distribution World distribution map for the smooth butterfly ray The smooth butterfly ray is found in the western and eastern Atlantic Ocean and in the Gulf of Mexico. Main reference Upload your references References Coordinator: Retrieved 22 Feb Eight to nine rows of teeth function simultaneously.
These are broad diamond-shaped rays with a short tail that has low dorsal and ventral fin folds. Uses editors parameter link. It can vary from light brown to gray to greenish, with lighter or darker spots, and can manipulate its shading to blend better into its background.