Myliobatidae


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Related to Myliobatidae: family Myliobatidae, eagle ray

Myliobatidae

 

(eagle rays), a family of fishes of the order Batoidea. The rhomboid body has acute angles; the head is easily distinguished from the rest of the body. The tail resembles a long knout and, in some species, is equipped with dentate needles. There are five genera of eagle rays, embracing about 25 species. Some species measure as much as 2.5 m across and reach a length, including the tail, of 4.5 m. Eagle rays weigh up to 300 kg. They are ovoviviparous, producing six or seven young. The fishes are distributed in warm littoral waters of the World Ocean. They feed predominantly on mollusks. When eagle rays move, they wave their large fins and seem to fly in the water. Sometimes they leap to the surface and jump above the water. The flesh of eagle rays is edible, but the fishes are not commercially valuable.

REFERENCE

Zhizn’zhivotnykh, vol. 4, part 1. Moscow, 1971.
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A revised generic arrangement for the eagle ray family Myliobatidae, with definitions for the valid genera.
For now, scientists have limited data on the Myliobatidaes. But they estimate that species such as manta rays have declined by 30 percent in the past couple of years.
Of less to more poisonous, they are: Gymnuridae, Myliobatidae, Dasyatidae y Urolophidae.
11), Dalatias licha (from 25 t to 5 t, a decrease of 80%), Myliobatidae (from 15 t to 9 t, a decrease of 43%), and Squatinidae (from 8 t to 1 t, a decrease of 92%) (Fig.
Sequences from Myliobatis ridens Ruocco, Lucifora, Diaz de Astarloa, Mabragana & Delpiani, 2012 (Myliobatidae), Gymnura mycrura (Bloch & Schneider, 1801) (Gymnuridae), Himantura gerrardi (Gray, 1851) and Urobatis jamaicensis (Cuvier, 1816) (Urotrygonidae) were used as outgroups to root the phylogeny.
Clarification of Aetobatus ocellatus (Kuhl, 1823) as a valid species, and a comparison with Aetobatus narinari (Euphrasen, 1790) (Rajiformes: Myliobatidae).
En cuanto a la presencia de dientes de Rhinopteridae y Myliobatidae, son organismos bentonicos, cuya dieta consiste de moluscos y son visitantes habituales de las aguas someras de las plataformas y los fondos blandos y duros del neritico, ricos en ostras y bivalvos tanto sesiles como epi y endo bentonicos, por lo que su asociacion con los sedimentos conglomeradicos del abanico deltaico pudo deberse al acarreo originado por la sedimentacion de alguno de los lobulos.
De las 74 especies de batoideos descritas para el Atlantico centro occidental (McEachran & Notabartolo-Di-Sciara, 1995), 33 han sido registradas en aguas del Caribe de Colombia y se agrupan principalmente en las familias Narcinidae, Rhinobatidae, Dasyatidae, Urolophidae y Myliobatidae (Rey & Acero, 2002).
Analyses of fisheries data for 1994 to 1999 showed that the bycatch species Heterodontus portusjacksoni (Heterodontidae) and Myliobatis australis (Myliobatidae) are abundant in catches of the temperate demersal gillnet and longline fisheries of southwestern Australia (McAuley and Simpfendorfer, 2003).
III,IV ORDEN MYLIOBATIFORMES FAMILIA UROLOPHIDAE Urobatis maculatus raya redonda I (Garman, 1913) de Cortes FAMILIA DASYATIDAE Dasyatis dipterura raya latigo I (Jordan y Gilbert, 1880) diamante Dasyatis longa (Garman, 1880) raya latigo largo I FAMILIA GYMNURIDAE Gymnura marmorata raya mariposa III (Cooper, 1864) californiana FAMILIA MYLIOBATIDAE Myliobatis californica tecolote II,III Gill, 1865 Myliobatis longirostris Aguila picuda II,III Applegate y Fitch, 1964 CLASE ACTINOPTERYGII SUBCLASE NEOPTERYGII DIVISION TELEOSTEI ORDEN ELOPIFORMES FAMILIA ELOPIDAE Elops affinis Regan, 1909 machete del II Pacifico ORDEN ALBULIFORMES FAMILIA ALBULIDAE Albula esuncula macabi de Cortes I (Garman, 1899) Albula pacifica macabi de hebra I (Beebe, 1942) sp.
Seven families were restricted to tidal-creek habitats: minnows (Cyprinidae), sunfishes (Centrarchidae), killifishes (Cyprinodontidae), gars (Lepisosteidae), eagle rays (Myliobatidae), pikes (Esocidae), and livebearers (Poeciliidae; Table 2).