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Narcinidae

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are just forward of the mouth and connected to it by a broad groove; the nasal flaps are short, but merged into a broad nasal curtain that overlaps the mouth. The small teeth have a single moderate cusp; the teeth and tooth bands are exposed when the mouth is closed (except in
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off the bottom; their protrusible jaws aid in removing prey from the substrate. They can generate a moderate shock if disturbed and contact is made with the electric organs; the electrical discharges of narcinids have been measured at 8-37
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Numbfishes vary in color from whitish or yellowish to brownish, grey-brown, greenish, reddish, or black above, either plain or with small to large spots, blotches, bars or lines, sometimes forming complex eye-shaped spots or
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Members of this family are commonly known as the numbfishes, and are found almost worldwide in warm temperate and tropical continental and continental insular waters. They are strictly marine, so are absent from
245:-shaped pectoral discs and stout tails of equal or longer length. The snout is moderately elongated, rounded, or rounded-angular, differing from the narkids in being supported by broad rostral 631: 657: 605: 644: 378: 249:. The mouth is straight, with stout, elongated, and highly protrusible jaws and a prominent groove around its periphery. The 649: 374: 777: 241:, adult numbfishes range from 15 to 66 cm long, though most are less than 50 cm. They have oval, rounded, or 425:
Compagno, L.J.V. and Last, P.R. (1999). Narcinidae. Numbfishes. p. 1433-1437. In: K.E. Carpenter and V.H. Niem (eds.)
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FAO identification guide for fishery purposes. The living marine resources of the Western Central Pacific.
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on the pectoral fins. They are usually white underneath, or black in deep-water species. The large,
762: 698: 493: 772: 721: 693: 636: 685: 592: 540: 531: 8: 757: 38: 30: 278:-shaped electric organs at the base of the pectoral fins are visible through the skin. 178: 170: 49: 680: 579: 448: 226: 584: 545: 558: 305: 182: 163: 516: 186: 106: 96: 751: 468: 310: 141: 295: 174: 159: 126: 618: 525: 326: 333: 263: 259: 222: 623: 354: 340: 246: 218: 66: 610: 487: 510: 477: 116: 86: 347: 287: 250: 167: 275: 271: 242: 238: 76: 706: 597: 210: 199: 445:
Sharks, Skates, and Rays: The Biology of Elasmobranch Fishes
300: 291: 207: 203: 214: 442: 421: 419: 417: 415: 749: 412: 303:, much less than the electric rays of the genus 189: 321:These genera are included in this family: 177:discs and long tails. They can produce an 29: 397: 395: 313:, with eggs hatching inside the mother. 467: 379:Integrated Taxonomic Information System 750: 436: 281: 492: 491: 392: 712:865687AC-8E6A-4405-FF0F-0E9CFC307CA6 673:b59b05aa-c023-4297-9b4b-504d4e77fb1d 407:ReefQuest Centre for Shark Research. 447:. Baltimore and London: JHU Press. 225:and river mouths, and on the upper 13: 262:of roughly equal size and a large 14: 789: 431:Food and Agriculture Organization 53: 461: 409:Retrieved on October 12, 2008. 367: 232: 181:for defense, from which their 16:Family of cartilaginous fishes 1: 361: 286:Numbfishes are slow-swimming 443:Hamlett, William C. (1999). 7: 778:Taxa named by Theodore Gill 190: 10: 794: 500: 316: 50:Scientific classification 48: 37: 28: 23: 471:; Pauly, Daniel (eds.). 194:, meaning 'paralysis'). 481:. October 2012 version. 229:to a depth of 1,071 m. 237:Small to medium-sized 694:Paleobiology Database 768:Marine fish families 173:with large, rounded 171:cartilaginous fishes 473:"Family Narcinidae" 290:that feed on small 282:Biology and ecology 39:Lesser electric ray 401:Martin, R. Aidan. 309:. All species are 179:electric discharge 158:, are a family of 43:Narcine bancroftii 745: 744: 681:Open Tree of Life 494:Taxon identifiers 258:). Two prominent 227:continental slope 213:, muddy enclosed 149: 148: 145: 785: 738: 737: 725: 724: 715: 714: 702: 701: 689: 688: 676: 675: 666: 665: 653: 652: 640: 639: 627: 626: 614: 613: 601: 600: 588: 587: 575: 574: 562: 561: 549: 548: 536: 535: 534: 521: 520: 519: 489: 488: 483: 482: 465: 459: 458: 440: 434: 423: 410: 399: 390: 389: 387: 385: 371: 206:. They occur in 193: 140: 58: 57: 33: 21: 20: 793: 792: 788: 787: 786: 784: 783: 782: 763:Torpediniformes 748: 747: 746: 741: 733: 728: 720: 718: 710: 705: 697: 692: 684: 679: 671: 669: 661: 656: 648: 643: 635: 630: 622: 617: 609: 604: 596: 591: 583: 578: 570: 565: 557: 552: 544: 539: 530: 529: 524: 515: 514: 509: 496: 486: 466: 462: 455: 441: 437: 424: 413: 400: 393: 383: 381: 373: 372: 368: 364: 319: 288:bottom-dwellers 284: 235: 183:scientific name 168:bottom-dwelling 164:Torpediniformes 139: 127:Torpediniformes 52: 17: 12: 11: 5: 791: 781: 780: 775: 770: 765: 760: 743: 742: 740: 739: 726: 716: 703: 690: 677: 667: 654: 641: 628: 615: 602: 589: 576: 563: 550: 537: 522: 506: 504: 498: 497: 485: 484: 469:Froese, Rainer 460: 453: 435: 411: 391: 365: 363: 360: 359: 358: 351: 344: 337: 330: 318: 315: 283: 280: 234: 231: 147: 146: 134: 130: 129: 124: 120: 119: 114: 110: 109: 107:Elasmobranchii 104: 100: 99: 97:Chondrichthyes 94: 90: 89: 84: 80: 79: 74: 70: 69: 64: 60: 59: 46: 45: 35: 34: 26: 25: 15: 9: 6: 4: 3: 2: 790: 779: 776: 774: 771: 769: 766: 764: 761: 759: 756: 755: 753: 736: 731: 727: 723: 717: 713: 708: 704: 700: 695: 691: 687: 682: 678: 674: 668: 664: 659: 655: 651: 646: 642: 638: 633: 629: 625: 620: 616: 612: 607: 603: 599: 594: 590: 586: 581: 577: 573: 568: 564: 560: 555: 551: 547: 542: 538: 533: 527: 523: 518: 512: 508: 507: 505: 503: 499: 495: 490: 480: 479: 474: 470: 464: 456: 454:0-8018-6048-2 450: 446: 439: 432: 428: 422: 420: 418: 416: 408: 404: 403:Electric Rays 398: 396: 380: 376: 370: 366: 357: 356: 352: 350: 349: 345: 343: 342: 338: 336: 335: 331: 329: 328: 324: 323: 322: 314: 312: 311:ovoviviparous 308: 307: 302: 297: 296:invertebrates 293: 289: 279: 277: 273: 267: 266:are present. 265: 261: 257: 252: 248: 244: 240: 230: 228: 224: 220: 216: 212: 209: 205: 201: 195: 192: 188: 184: 180: 176: 172: 169: 165: 161: 160:electric rays 157: 153: 143: 138: 135: 132: 131: 128: 125: 122: 121: 118: 115: 112: 111: 108: 105: 102: 101: 98: 95: 92: 91: 88: 85: 82: 81: 78: 75: 72: 71: 68: 65: 62: 61: 56: 51: 47: 44: 40: 36: 32: 27: 22: 19: 773:Ray families 501: 476: 463: 444: 438: 426: 406: 382:. Retrieved 375:"Narcinidae" 369: 353: 346: 339: 332: 325: 320: 304: 285: 268: 255: 236: 196: 185:is derived ( 175:pectoral fin 166:). They are 155: 151: 150: 136: 113:Superorder: 42: 18: 619:iNaturalist 526:Wikispecies 327:Benthobatis 260:dorsal fins 233:Description 223:coral reefs 24:Narcinidae 758:Narcinidae 752:Categories 559:Narcinidae 546:Narcinidae 532:Narcinidae 502:Narcinidae 362:References 334:Diplobatis 264:caudal fin 256:Diplobatis 247:cartilages 156:numbfishes 152:Narcinidae 142:T. N. Gill 137:Narcinidae 103:Subclass: 384:March 20, 355:Narcinops 341:Discopyge 219:estuaries 73:Kingdom: 67:Eukaryota 517:Q2167421 511:Wikidata 478:FishBase 251:nostrils 133:Family: 117:Batoidea 87:Chordata 83:Phylum: 77:Animalia 63:Domain: 722:4783307 348:Narcine 306:Torpedo 211:beaches 162:(order 123:Order: 93:Class: 735:148816 719:uBio: 699:154072 686:818997 670:NZOR: 650:564006 637:113895 451:  429:Rome: 317:Genera 292:fishes 276:kidney 272:ocelli 243:shovel 221:, off 200:rivers 144:, 1862 730:WoRMS 707:Plazi 663:40665 632:IRMNG 624:85914 585:624Q4 572:52971 301:volts 208:sandy 204:lakes 191:narke 187:Greek 154:, or 658:NCBI 645:ITIS 611:2183 606:GBIF 598:8899 567:BOLD 449:ISBN 386:2006 294:and 239:rays 215:bays 202:and 593:EoL 580:CoL 554:AFD 541:ADW 754:: 732:: 709:: 696:: 683:: 660:: 647:: 634:: 621:: 608:: 595:: 582:: 569:: 556:: 543:: 528:: 513:: 475:. 414:^ 405:. 394:^ 377:. 217:, 41:, 457:. 433:. 388:.

Index


Lesser electric ray
Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Chondrichthyes
Elasmobranchii
Batoidea
Torpediniformes
Narcinidae
T. N. Gill
electric rays
Torpediniformes
bottom-dwelling
cartilaginous fishes
pectoral fin
electric discharge
scientific name
Greek
rivers
lakes
sandy
beaches
bays
estuaries
coral reefs
continental slope
rays

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