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Common eagle ray

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disc with a pair of large, triangular pectoral fins projecting on either side, and a single dorsal fin. The blunt snout is rounded and the tail is long and slender, with a large spine at its base but no tail fin. On average, males have 72 spine serrations and females have 66 spine serrations. The spine makes about 70% of the male's length and 65% of the female's length. The mid dorsal groove, which contains the glandular tissue necessary for venom injection, extends along 10-40% the tail. It has one or two excretory channels for the venom.
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in the northwestern Mediterranean Sea, populations declined in the 1970s, and there and elsewhere in the Mediterranean, the fish is under threat from intensive fishing. The population has also been declining in the Atlantic Ocean off the coast of Europe, where it was once one of the most common skate
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showed that, on average, the fisheries in the region catch one common eagle ray every 20 hauls. About 79% of these are released alive after capture. The frequency is impacted by the depth of trawling, the season and the area being trawled. Most individuals were caught between April and September in
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Juvenile females have whitish membranous ovaries and thread-like oviducts. The oviducal glands are inconspicuous. Sub-adults have white translucent follicles and a well differentiated genital duct. The oviducal glands are slightly rounded. Adult females captured in January and March off the coast of
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on the testes or sperm in the seminal vesicles. The superior surface of the orbit has a conspicuous protrusion. Adult males have elongated calcified claspers that are larger than the pelvic fins. The testes are well developed with visible external spermatocysts, a twisted genital duct and sperm in
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The common eagle ray reaches up to 183 cm (6.0 ft) in total length and has a disc width up to 80 cm (2.6 ft). Most specimens are, however, smaller. Females grow to be larger than males. The dorsal surface is brown or black while the ventral surface is white. It has a rhomboidal
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in both ovaries. The uteri were thick and muscular. They contained uterine fluid, which is probably sectreted from the villi that cover the internal wall. Females caught in August and September in the same region had between eight and ten yolky oocytes of a similar size and mass. Both uteri were
677:. This is likely due to its diet as both the other two species feed on higher trophic levels (compared to the invertebrates that make up this eagle ray's diet). It also had the lowest methylmercury concentration (an average of 72%). This species does, however, appear to have higher levels of 1298:
Capapé, Christian & Guélorget, Olivier & Vergne, Yvan & Jean-pierre, Quignard. (2007). Reproductive biology of the common eagle ray, Myliobatis aquila (Chondrichthyes: Myliobatidae) from the coast cf Languedoc (Southern France, northern Mediterranean). Vie et Milieu. 53.
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Kumar, R & Vennila, R & Palani, Damotharan & Shankar, Kanchana & Muthuvel, Arumugam & Thangavel, Balasubramanian. (2010). Abundance of stingrays in parangipettai coast and the importance of exploring properties of their venom. Inter. Jour. of Recent Scientific
464:. It occurs both close to the shore and further out, at depths down to about 800 m (2,600 ft), but much of its time is spent in shallower water at less than 50 m (160 ft). It typically prefers more open sandy areas. It has also been found in a semi-enclosed 1378: 571:, which plays an important role in stingray gestation. Fertilised eggs surrounded by a diaphanous and a yellowish capsule that tapered to a small filament at either end were found in a female captured in October. The ovary contained atretic oocytes. 740:
Jabado, R.W.; Chartrain, E.; Cliff, G.; Da Silva, C.; Derrick, D.; Dia, M.; Diop, M.; Doherty, P.; Leurs, G.H.L.; Metcalfe, K.; Pacoureau, N.; Porriños, G.; Seidu, I.; Soares, A.-L.; Tamo, A.; VanderWright, W.J.; Williams, A.B.; Winker, H. (2021).
509:. Larger individuals consume more fish than smaller individuals. Instead of having pointed teeth, it has flattened hexagonal bars and plates arranged in a mosaic pattern on its jaws; with these, it crushes the shells of its prey. 512:
Mollusks and teleost fish were found to be the most important food items for individuals living in the Sea of Marmara, although polychaetas and crustaceans were also frequently found amongst the stomach contents.
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specimen has been recorded. This specimen was classified as an abnormal hermaphrodite - one which is unable to perform as a functioning male or female as the reproductive organs were underdeveloped.
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This species is sometimes caught as bycatch, including in the pelagic trawl fishery. Due to declining numbers, the levels of bycatch are not nearly as high as they were historically. A study in the
665:(the most common organic mercury compound) concentrations in three cartilaginous fish species. The common eagle ray was found to have lower mercury concentrations (0.67-1.01 mg/kg) than 1215:"Summer aggregation of common eagle ray, Myliobatis aquila (Chondrichthyes: Myliobatidae), in the Marine Protected Area of the Egadi Islands (southwestern Tyrrhenian Sea)" 541:. A clutch of three to seven young develop inside the mother, receiving nourishment at first from their egg yolks, but later from fluids secreted by their mother into her 1356:
Annales: Anali za istrske in mediteranske študije = annali di Studi istriani e mediterranei = annals for Istrian and Mediterranean studies. Series historia naturalis
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The taxonomic position of this fish is unclear as populations in the Mediterranean Sea may be a different species from those in the southeastern Atlantic. In the
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Schwartz, Frank J (2005). "Tail spine characteristics of stingrays (order Myliobatiformes) found in the northeast Atlantic, Mediterranean, and Black Seas".
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and ray bycatch species (which collectively made up a total of about a quarter of the total catch by mass in 1881). The species is now rare in the region.
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Whitehead, P.J.P., Bauchot, M.-L., Hureau, J. and Tortonese E. 1984. Fishes of the Northeastern Atlantic and the Mediterranean, Vol. I. UNESCO, Paris.
1938: 690: 1990: 1379:"Spermatophores in the Monogenean Entobdella diadema Monticelli from the skin of sting-rays, with a note on the taxonomy of the parasite" 624:
While it does contain venom, this species is not considered to pose a risk to humans as stings typically don't have any strong effects.
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Juvenile males have thread-like testes and genital ducts. The orbits have a smooth surface. Sub-adult males have no externally visible
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RAFRAFI-NOUIRA, Sihem; EL KAMEL-MOUTALIBI, Olfa; OUNIFI-BEN AMOR, Khadija; BEN AMOR, Mohamed Mourad; CAPAPÉ, Christian (2017).
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Ponte, Dário Dinis Sousa; Barcelos, Luís Miguel Duarte; Santos, Cristina Sousa; Medeiros, João; Barreiros, João P. (2016).
1662:Ĺ lejkovec, Zdenka; Stajnko, Anja; Falnoga, Ingrid; Lipej, Lovrenc; Mazej, Darja; Horvat, Milena; Faganeli, Jadran (2014). 2126: 2166: 1886: 1730: 2136: 891: 17: 2078: 1995: 799: 537:
This species is known to gather in groups of dozens of individuals during the reproductive period. Reproduction is
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GĂĽl, GĂĽzin; Demirel, Nazli (2020). "Trophic interactions of uncommon batoid species in the Sea of Marmara".
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Bonanomi, Sara; Pulcinella, Jacopo; Fortuna, Caterina Maria; Moro, Fabrizio; Sala, Antonello (2018-01-29).
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Benthic invertebrates form an important part of the common eagle ray's diet. The species largely feeds on
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This species has gained economic importance through underwater photographers and other
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Last, P., White, W., de Carvalho, M., SĂ©ret, B., Stehmann, M. and Naylor, G. 2016.
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enlarged and contained uterine fluid. The villi were well-developed and formed the
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Coastal fishes of the Cape Peninsula and False Bay: a divers' identification guide
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the seminal vesicles. They have well-developed conical supra-orbital vesicles.
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Storelli, M.M; Giacominelli-Stuffler, R; Marcotrigiano, G.O (December 2002).
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Buxton, C.D.; Smale, M.J.; Wallace, J.H.; Cockcroft, V.G. (1984-01-01).
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activities but these are less intensive and populations may be steady.
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the more northern areas at depths of 20–40 m (66–131 ft).
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that it excavates from the seabed. Other items in its diet include
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Tuya, Fernando; Asensio, Maite; Navarro, Alberto (2020-05-01).
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Tazerouti, Fadila; Neifar, Lassad; Euzet, Louis (2011-01-01).
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Muus, B., J. G. Nielsen, P. Dahlstrom and B. Nystrom (1999).
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Several parasites live in and on this species. These include
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http://www.ciesm.org/Guide/skatesandrays/Myliobatis-aquila
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Along the coast of West Africa it is also the subject of
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Biogeographia – the Journal of Integrative Biogeography
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are the most common prey species off the coast off the
1052:). October 2022. Mendez L., Bacquet A. and F. Briand. 1748: 1423: 1212: 1067: 886:. Cape Town: Southern Underwater Research Group. 2098: 766:10.2305/IUCN.UK.2021-1.RLTS.T161569A124508353.en 532: 1376: 691:International Union for Conservation of Nature 1213:Grancagnolo, Desiree; Arculeo, Marco (2021). 2157:Fish of the Democratic Republic of the Congo 2107:IUCN Red List critically endangered species 1668:International Journal of Molecular Sciences 619: 435: 1159: 824: 822: 820: 818: 816: 140: 121: 1697: 1679: 1591: 1573: 1524: 1441: 1326: 1240: 1230: 1101: 919: 879: 764: 681:in its tissues than pelagic ray species. 1139:. Marshall Cavendish. pp. 729–731. 1133:Burton, Maurice; Burton, Robert (1969). 1048:Guide of Mediterranean Skates and Rays ( 961: 1472: 980: 813: 14: 2099: 1479:Arhiv Za Higijenu Rada I Toksikologiju 1162:J. Black Sea/Mediterranean Environment 1126: 1799: 1798: 1506: 1502: 1500: 1377:Llewellyn, J.; Euzet, L. (May 1964). 1294: 1292: 1290: 1177: 1175: 1063: 1061: 1044: 1042: 552: 2061:92C0B34E-58DD-61D4-BF4B-653FE967DDDF 957: 955: 915: 913: 911: 875: 873: 871: 780: 1136:International Wildlife Encyclopedia 848: 752:IUCN Red List of Threatened Species 574: 480: 440:This species occurs in the eastern 24: 1497: 1287: 1172: 1074:Regional Studies in Marine Science 1058: 1039: 652: 25: 2233: 1718: 1507:Quero, Jean-Claude (1998-01-01). 964:Electronic Journal of Ichthyology 952: 908: 868: 1782: 1770: 1758: 1736: 1724: 1315:South African Journal of Zoology 800:World Register of Marine Species 587: 165: 46: 1655: 1608: 1541: 1466: 1417: 1370: 1343: 1302: 1274: 1265: 1206: 1153: 2222:Fish of Bosnia and Herzegovina 1328:10.1080/02541858.1984.11447880 1029: 974: 926:ICES Journal of Marine Science 562:were found to have developing 426: 13: 1: 2142:Fish of the Mediterranean Sea 1641:10.1016/S0025-326X(02)00223-0 715: 1575:10.1371/journal.pone.0191647 1284:. CSIRO Publishing, Clayton. 1007:10.1016/0041-0101(82)90241-0 920:Christian, C. (1976-05-01). 599: 533:Reproduction and development 7: 2122:Taxa named by Carl Linnaeus 10: 2238: 2127:Fish of the Atlantic Ocean 1513:Italian Journal of Zoology 1094:10.1016/j.rsma.2020.101342 981:Maretic, Z. (1982-01-01). 640: 627: 475: 460:. It is also found in the 403:. It inhabits the eastern 2167:Fish of Equatorial Guinea 1807: 1621:Marine Pollution Bulletin 1526:10.1080/11250009809386873 1443:10.2478/s11686-011-0056-4 1395:10.1017/S0031182000067962 880:Zsilavecz, Guido (2005). 684: 661:examined the mercury and 317: 310: 287: 280: 162:Scientific classification 160: 138: 129: 120: 34: 2137:Fish of the Indian Ocean 620:Relationship with humans 436:Distribution and habitat 938:10.1093/icesjms/37.1.29 759:: e.T161569A124508353. 516:Calliostoma lusitanicum 2117:Fish described in 1758 419:and the south-western 2132:Fish of the Black Sea 2043:Paleobiology Database 1681:10.3390/ijms151222073 1364:10.19233/ASHN.2017.06 695:critically endangered 613:Monocotyle myliobatis 522:Stramonita haemastoma 147:Critically Endangered 2197:Fish of South Africa 1733:at Wikimedia Commons 1473:Maretić, Z. (1982). 1674:(12): 22073–22091. 1633:2002MarPB..44.1354S 1566:2018PLoSO..1391647B 1430:Acta Parasitologica 1232:10.21426/B636051230 1086:2020RSMS...3701342T 999:1982Txcn...20..345M 834:: Common eagle ray" 549:Island in October. 470:Gran Canaria Island 456:, extending to the 132:Conservation status 41:2.588–Present  2187:Fish of Mozambique 2182:Fish of Madagascar 668:Chimaera monstrosa 607:Entobdella diadema 553:Female development 499:gastropod molluscs 395:) is a species of 345:Myliobatis noctula 2094: 2093: 2030:Open Tree of Life 1839:Myliobatis aquila 1809:Myliobatis aquila 1801:Taxon identifiers 1743:Myliobatis aquila 1731:Myliobatis aquila 1729:Media related to 1627:(12): 1354–1358. 1519:(sup1): 493–499. 1282:Rays of the World 1146:978-0-7614-7266-7 1050:Myliobatis aquila 832:Myliobatis aquila 790:Myliobatis aquila 745:Myliobatis aquila 710:artisanal fishing 674:Torpedo nobiliana 659:Mediterranean Sea 462:Mediterranean Sea 417:Mediterranean Sea 392:Myliobatis aquila 379: 378: 373: 365: 357: 353:Myliobatus aquila 349: 341: 337:Myliobatis equila 333: 329:Myliobatis cervus 325: 291:Myliobatis aquila 155: 18:Myliobatis aquila 16:(Redirected from 2229: 2202:Fish of Tanzania 2152:Fish of Cameroon 2087: 2086: 2074: 2073: 2064: 2063: 2051: 2050: 2038: 2037: 2025: 2024: 2012: 2011: 1999: 1998: 1986: 1985: 1983:NBNSYS0000184409 1973: 1972: 1960: 1959: 1947: 1946: 1934: 1933: 1921: 1920: 1908: 1907: 1895: 1894: 1882: 1881: 1869: 1868: 1856: 1855: 1843: 1842: 1841: 1828: 1827: 1826: 1796: 1795: 1787: 1786: 1775: 1774: 1763: 1762: 1761: 1754: 1741:Data related to 1740: 1728: 1712: 1711: 1701: 1683: 1659: 1653: 1652: 1612: 1606: 1605: 1595: 1577: 1545: 1539: 1538: 1528: 1504: 1495: 1494: 1470: 1464: 1463: 1445: 1421: 1415: 1414: 1374: 1368: 1367: 1347: 1341: 1340: 1330: 1306: 1300: 1296: 1285: 1278: 1272: 1269: 1263: 1262: 1244: 1234: 1210: 1204: 1203: 1179: 1170: 1169: 1157: 1151: 1150: 1130: 1124: 1123: 1105: 1065: 1056: 1046: 1037: 1033: 1027: 1026: 978: 972: 971: 959: 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899: 895: 893:0-620-34230-7 889: 885: 884: 876: 874: 872: 865: 861: 857: 851: 835: 833: 825: 823: 821: 819: 817: 801: 797: 793: 791: 783: 767: 762: 758: 754: 753: 748: 746: 736: 734: 732: 730: 728: 726: 721: 713: 711: 706: 703: 698: 696: 692: 682: 680: 676: 675: 670: 669: 664: 663:methylmercury 660: 650: 648: 638: 635: 625: 617: 615: 614: 609: 608: 597: 595: 592:At least one 588:Hermaphrotism 585: 582: 581:spermatocysts 572: 570: 565: 561: 550: 548: 544: 540: 539:oviviviparous 530: 528: 524: 523: 518: 517: 510: 508: 504: 500: 496: 492: 488: 473: 471: 467: 463: 459: 455: 451: 450:British Isles 447: 443: 433: 424: 422: 418: 414: 410: 406: 402: 398: 394: 393: 388: 384: 370: 367: 362: 359: 354: 351: 346: 343: 338: 335: 330: 327: 322: 319: 318: 316: 313: 309: 304: 300: 294: 292: 286: 283: 282:Binomial name 279: 275: 274: 269: 266: 265: 262: 261: 257: 254: 253: 250: 247: 244: 243: 240: 237: 234: 233: 230: 227: 224: 223: 220: 217: 214: 213: 210: 207: 204: 203: 200: 197: 194: 193: 190: 187: 184: 183: 180: 177: 174: 173: 168: 163: 159: 153: 148: 137: 133: 128: 124: 119: 105: 100: 95: 90: 85: 80: 75: 70: 65: 60: 55: 50: 44: 33: 30: 19: 1808: 1671: 1667: 1657: 1624: 1620: 1610: 1557: 1553: 1543: 1516: 1512: 1482: 1478: 1468: 1433: 1429: 1419: 1386: 1383:Parasitology 1382: 1372: 1355: 1345: 1318: 1314: 1304: 1281: 1276: 1267: 1242:10447/547067 1222: 1218: 1208: 1191: 1187: 1165: 1161: 1155: 1135: 1128: 1077: 1073: 1049: 1031: 990: 986: 976: 967: 963: 932:(1): 29–35. 929: 925: 882: 855: 850: 838:. Retrieved 831: 803:. Retrieved 795: 789: 782: 770:. Retrieved 756: 750: 744: 707: 702:Gulf of Lion 699: 688: 672: 666: 656: 644: 634:Adriatic Sea 631: 623: 611: 605: 603: 591: 578: 569:trophonemata 556: 547:Gran Canaria 536: 520: 514: 511: 484: 458:Indian Ocean 454:South Africa 439: 430: 421:Indian Ocean 413:South Africa 401:Myliobatidae 391: 390: 386: 382: 380: 368: 361:Raia rhombus 360: 352: 344: 336: 328: 320: 290: 288: 272: 271: 259: 249:Myliobatidae 225:Superorder: 29: 1926:iNaturalist 1833:Wikispecies 1103:10553/73658 772:20 November 487:crustaceans 448:, from the 427:Description 369:Raja aquila 332:Smith, 1935 2112:Myliobatis 2101:Categories 1080:: 101342. 864:8790787005 836:. FishBase 716:References 505:and small 260:Myliobatis 215:Subclass: 1690:1422-0067 1584:1932-6203 1535:1125-0003 1491:0004-1254 1452:1896-1851 1403:1469-8161 1337:0254-1858 1259:234245830 1251:1594-7629 1200:0399-0974 1120:225914133 1112:2352-4855 1036:Research. 1015:0041-0101 946:1054-3139 856:Sea Fish. 600:Parasites 446:North Sea 409:North Sea 267:Species: 185:Kingdom: 179:Eukaryota 1944:10760611 1900:FishBase 1879:46561008 1818:Wikidata 1708:25470025 1649:12523539 1602:29377920 1554:PLOS ONE 1460:25272145 1411:84808479 1358:(27–1). 902:70133147 649:divers. 503:sea pens 312:Synonyms 299:Linnaeus 245:Family: 229:Batoidea 199:Chordata 195:Phylum: 189:Animalia 175:Domain: 152:IUCN 3.1 1918:2419310 1824:Q926676 1789:Biology 1777:Animals 1751:Portals 1699:4284695 1629:Bibcode 1593:5788366 1562:Bibcode 1082:Bibcode 1023:6123162 995:Bibcode 987:Toxicon 858:p. 76. 805:1 April 679:arsenic 641:Tourism 628:Fishing 564:oocytes 476:Ecology 415:), the 387:bullray 255:Genus: 235:Order: 205:Class: 150: ( 110:↓ 2084:105860 2071:132439 2068:uBio: 2048:153955 2035:114274 2022:105860 2009:186028 1996:990611 1970:161569 1957:160983 1892:124506 1706:  1696:  1688:  1647:  1600:  1590:  1582:  1533:  1489:  1458:  1450:  1409:  1401:  1335:  1299:25-30. 1257:  1249:  1198:  1188:Cybium 1143:  1118:  1110:  1021:  1013:  970:: 1–9. 944:  900:  890:  862:  840:5 June 685:Status 560:France 543:uterus 527:Azores 466:lagoon 2079:WoRMS 2056:Plazi 1939:IRMNG 1931:49311 1887:EUNIS 1866:453C6 1853:52096 1456:S2CID 1436:(3). 1407:S2CID 1255:S2CID 1116:S2CID 796:WoRMS 647:SCUBA 2017:OBIS 1991:NCBI 1965:IUCN 1952:ITIS 1913:GBIF 1905:4330 1848:BOLD 1765:Fish 1704:PMID 1686:ISSN 1645:PMID 1598:PMID 1580:ISSN 1531:ISSN 1487:ISSN 1448:ISSN 1399:ISSN 1333:ISSN 1247:ISSN 1196:ISSN 1141:ISBN 1108:ISSN 1019:PMID 1011:ISSN 942:ISSN 898:OCLC 888:ISBN 860:ISBN 842:2016 807:2023 774:2021 757:2021 689:The 519:and 507:fish 489:and 397:fish 381:The 303:1758 49:Preęž’ 1978:NBN 1874:EoL 1861:CoL 1694:PMC 1676:doi 1637:doi 1588:PMC 1570:doi 1521:doi 1438:doi 1391:doi 1360:doi 1323:doi 1237:hdl 1227:doi 1098:hdl 1090:doi 1003:doi 934:doi 761:doi 697:". 671:or 468:on 452:to 411:to 385:or 2103:: 2081:: 2058:: 2045:: 2032:: 2019:: 2006:: 1993:: 1980:: 1967:: 1954:: 1941:: 1928:: 1915:: 1902:: 1889:: 1876:: 1863:: 1850:: 1835:: 1820:: 1702:. 1692:. 1684:. 1672:15 1670:. 1666:. 1643:. 1635:. 1625:44 1623:. 1619:. 1596:. 1586:. 1578:. 1568:. 1558:13 1556:. 1552:. 1529:. 1517:65 1515:. 1511:. 1499:^ 1483:33 1481:. 1477:. 1454:. 1446:. 1434:56 1432:. 1428:. 1405:. 1397:. 1387:54 1385:. 1381:. 1354:. 1331:. 1319:19 1317:. 1313:. 1289:^ 1253:. 1245:. 1235:. 1225:. 1223:36 1221:. 1217:. 1192:40 1190:. 1186:. 1174:^ 1166:26 1164:. 1114:. 1106:. 1096:. 1088:. 1078:37 1076:. 1072:. 1060:^ 1041:^ 1017:. 1009:. 1001:. 991:20 989:. 985:. 966:. 954:^ 940:. 930:37 928:. 924:. 910:^ 896:. 870:^ 815:^ 798:. 794:. 755:. 749:. 724:^ 529:. 501:, 497:, 423:. 301:, 99:Pg 43:Ma 1753:: 1710:. 1678:: 1651:. 1639:: 1631:: 1604:. 1572:: 1564:: 1537:. 1523:: 1493:. 1462:. 1440:: 1413:. 1393:: 1366:. 1362:: 1339:. 1325:: 1261:. 1239:: 1229:: 1202:. 1149:. 1122:. 1100:: 1092:: 1084:: 1025:. 1005:: 997:: 968:1 948:. 936:: 904:. 844:. 830:" 809:. 792:" 788:" 776:. 763:: 747:" 743:" 407:( 389:( 305:) 297:( 154:) 104:N 94:K 89:J 84:T 79:P 74:C 69:D 64:S 59:O 54:ęž’ 20:)

Index

Myliobatis aquila
Ma
Preęž’
ęž’
O
S
D
C
P
T
J
K
Pg
N

Conservation status
Critically Endangered
IUCN 3.1
Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Chondrichthyes
Elasmobranchii
Batoidea
Myliobatiformes
Myliobatidae
Myliobatis
Binomial name

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