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Pontobdella muricata

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57: 33: 358:). It is found attached to the gills, the abdomen, and the bases of the fins of the host, where it feeds by sucking blood. It is quiescent during the day, holding itself motionless and partially coiled, attached by its posterior sucker, but becomes active at night, when it feeds. It can separate from its host and swim by flattening its body. It is the intermediate host for the 386:. The sphere is filled with a thick, gelatinous material with the developing embryo spirally coiled within. When it is nearly 2.5 cm (1 in) long and ready to hatch, a pair of small, rounded protuberances at the side of the sphere fall off, allowing the juvenile leech to emerge, and search for a suitable host fish. 278:
The anterior end has a sucker with which it feeds, and the posterior end bears another sucker with which it adheres to its host. The skin is rough and covered with small warts; the colour varies, juveniles are usually black or dark green with small speckles, while adults are pale grey, tan, or olive-green.
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is a long, cylindrical, somewhat flattened leech, narrowing at both ends. It has a number of annulations, which do not correspond to its internal segmentation, and is one of the largest sea leeches, with a length up to 10 cm (4 in) long when at rest, and double that length when stretched.
382:, where each is enclosed in a spherical cocoon. These are attached to empty bivalve or gastropod shells on the seabed and are pale at first, but darken with age. They are often irregularly grouped together, each with a slender, twisted stalk connecting it to a spreading, membranous 290:, to the Mediterranean Sea. It has also been reported from the United States, Canada, Namibia, and Pakistan, but some of these records may be due to misidentification. It is found on the seabed at depths down to about 100 m (330 ft) and attached to large 633: 672: 607: 749: 646: 685: 531: 769: 744: 764: 594: 754: 711: 419: 651: 659: 56: 677: 451: 759: 549: 187: 363: 286:
Native to the northeastern Atlantic Ocean, the species ranges from the Arctic, the Baltic Sea, and the
716: 581: 407: 307: 703: 383: 343: 213: 164: 51: 638: 477: 527: 521: 504: 263: 739: 351: 335: 315: 144: 101: 303: 251: 733: 375: 323: 291: 204: 44: 32: 247: 154: 698: 664: 620: 572: 255: 124: 114: 599: 379: 287: 259: 68: 566: 359: 612: 331: 239: 88: 625: 78: 543: 243: 134: 690: 586: 547: 250:. It is a parasite of fishes and is native to the northeastern 378:, and fertilisation is internal. The eggs pass through the 367:, which it carries in its gut and transmits to rays. 556: 8: 544: 31: 20: 446: 444: 442: 440: 438: 436: 401: 399: 395: 302:This leech is an external parasite of 7: 14: 526:. CSIRO Publishing. p. 185. 16:Species of annelid (marine leech) 506:The Edinburgh Journal of Science 420:World Register of Marine Species 55: 750:Fauna of the Mediterranean Sea 509:. Blackwood. pp. 160–161. 1: 770:Taxa named by Carl Linnaeus 745:Fauna of the Atlantic Ocean 786: 765:Animals described in 1758 219: 212: 193: 186: 52:Scientific classification 50: 39: 30: 23: 755:Animal parasites of fish 503:Brewster, David (1827). 282:Distribution and habitat 452:"Sangsue verruqueuse: 520:Rohde, Klaus (2005). 406:Kolb, Jürgen (2019). 340:Pleuronectes platessa 330:), and less often of 558:Pontobdella muricata 480:Pontobdella muricata 454:Pontobdella muricata 410:Pontobdella muricata 308:marbled electric ray 304:cartilagenous fishes 275:Pontobdella muricata 235:Pontobdella muricata 197:Pontobdella muricata 25:Pontobdella muricata 523:Marine Parasitology 458:(in French). DORIS 370:Like all leeches, 344:black scorpionfish 320:Dasyatis pastinaca 727: 726: 550:Taxon identifiers 533:978-0-643-09927-2 456:(Linnaeus, 1758)" 412:(Linnaeus, 1758)" 364:Trypanosoma raiae 312:Torpedo marmorata 264:Mediterranean Sea 231: 230: 226: 777: 720: 719: 707: 706: 694: 693: 681: 680: 668: 667: 665:NBNSYS0000177431 655: 654: 642: 641: 629: 628: 616: 615: 603: 602: 590: 589: 577: 576: 575: 545: 538: 537: 517: 511: 510: 500: 494: 493: 491: 489: 474: 468: 467: 465: 463: 448: 431: 430: 428: 426: 403: 352:red scorpionfish 348:Scorpaena porcus 224: 199: 179:P. muricata 60: 59: 35: 21: 785: 784: 780: 779: 778: 776: 775: 774: 730: 729: 728: 723: 715: 710: 702: 697: 689: 684: 676: 671: 663: 658: 650: 645: 637: 632: 624: 619: 611: 606: 598: 593: 585: 580: 571: 570: 565: 552: 542: 541: 534: 519: 518: 514: 502: 501: 497: 487: 485: 482:Linnaeus, 1758" 476: 475: 471: 461: 459: 450: 449: 434: 424: 422: 405: 404: 397: 392: 336:European plaice 332:ray-finned fish 316:common stingray 300: 284: 272: 222:Hirudo muricata 208: 201: 195: 182: 145:Rhynchobdellida 102:Pleistoannelida 54: 17: 12: 11: 5: 783: 781: 773: 772: 767: 762: 757: 752: 747: 742: 732: 731: 725: 724: 722: 721: 708: 695: 682: 669: 656: 643: 630: 617: 604: 591: 578: 562: 560: 554: 553: 548: 540: 539: 532: 512: 495: 469: 432: 394: 393: 391: 388: 299: 296: 283: 280: 271: 268: 252:Atlantic Ocean 246:in the family 229: 228: 225:Linnaeus, 1758 217: 216: 210: 209: 202: 191: 190: 184: 183: 176: 174: 170: 169: 162: 158: 157: 152: 148: 147: 142: 138: 137: 132: 128: 127: 122: 118: 117: 112: 105: 104: 99: 92: 91: 86: 82: 81: 76: 72: 71: 66: 62: 61: 48: 47: 37: 36: 28: 27: 15: 13: 10: 9: 6: 4: 3: 2: 782: 771: 768: 766: 763: 761: 760:Ectoparasites 758: 756: 753: 751: 748: 746: 743: 741: 738: 737: 735: 718: 713: 709: 705: 700: 696: 692: 687: 683: 679: 674: 670: 666: 661: 657: 653: 648: 644: 640: 635: 631: 627: 622: 618: 614: 609: 605: 601: 596: 592: 588: 583: 579: 574: 568: 564: 563: 561: 559: 555: 551: 546: 535: 529: 525: 524: 516: 513: 508: 507: 499: 496: 484:. SeaLifeBase 483: 481: 473: 470: 457: 455: 447: 445: 443: 441: 439: 437: 433: 421: 417: 413: 411: 402: 400: 396: 389: 387: 385: 381: 377: 376:hermaphrodite 373: 368: 366: 365: 361: 357: 353: 349: 345: 341: 337: 333: 329: 325: 324:thornback ray 321: 317: 313: 309: 305: 297: 295: 293: 289: 281: 279: 276: 269: 267: 265: 261: 257: 253: 249: 245: 241: 237: 236: 227: 223: 218: 215: 211: 206: 200: 198: 192: 189: 188:Binomial name 185: 181: 180: 175: 172: 171: 168: 167: 163: 160: 159: 156: 153: 150: 149: 146: 143: 140: 139: 136: 133: 130: 129: 126: 123: 120: 119: 116: 113: 110: 107: 106: 103: 100: 97: 94: 93: 90: 87: 84: 83: 80: 77: 74: 73: 70: 67: 64: 63: 58: 53: 49: 46: 45:thornback ray 42: 38: 34: 29: 26: 22: 19: 557: 522: 515: 505: 498: 486:. Retrieved 479: 472: 460:. Retrieved 453: 423:. Retrieved 415: 409: 371: 369: 362: 355: 347: 339: 334:such as the 328:Raja clavata 327: 319: 311: 306:such as the 301: 285: 274: 273: 248:Piscicolidae 234: 233: 232: 221: 220: 196: 194: 178: 177: 165: 155:Piscicolidae 108: 95: 40: 24: 18: 699:SeaLifeBase 621:iNaturalist 488:25 December 462:27 December 425:25 December 372:P. muricata 350:), and the 322:), and the 270:Description 166:Pontobdella 41:P. muricata 734:Categories 390:References 262:, and the 256:Baltic Sea 242:of marine 131:Subclass: 125:Clitellata 115:Sedentaria 380:clitellum 360:protozoan 356:S. scrofa 288:North Sea 260:North Sea 173:Species: 135:Hirudinea 75:Kingdom: 69:Eukaryota 639:10927460 573:Q5155311 567:Wikidata 384:holdfast 292:demersal 214:Synonyms 205:Linnaeus 151:Family: 89:Annelida 85:Phylum: 79:Animalia 65:Domain: 740:Leeches 613:2307823 342:), the 314:), the 298:Ecology 240:species 207:, 1758) 161:Genus: 141:Order: 121:Class: 717:116986 691:116986 626:479819 587:401371 530:  294:fish. 258:, the 254:, the 712:WoRMS 704:40389 678:83990 652:69312 634:IRMNG 600:36986 595:EUNIS 416:WoRMS 374:is a 244:leech 238:is a 109:Clade 96:Clade 43:on a 686:OBIS 673:NCBI 647:ITIS 608:GBIF 528:ISBN 490:2019 464:2019 427:2019 660:NBN 582:EoL 736:: 714:: 701:: 688:: 675:: 662:: 649:: 636:: 623:: 610:: 597:: 584:: 569:: 435:^ 418:. 414:. 398:^ 266:. 111:: 98:: 536:. 492:. 478:" 466:. 429:. 408:" 354:( 346:( 338:( 326:( 318:( 310:( 203:(

Index


thornback ray
Scientific classification
Edit this classification
Eukaryota
Animalia
Annelida
Pleistoannelida
Sedentaria
Clitellata
Hirudinea
Rhynchobdellida
Piscicolidae
Pontobdella
Binomial name
Linnaeus
Synonyms
species
leech
Piscicolidae
Atlantic Ocean
Baltic Sea
North Sea
Mediterranean Sea
North Sea
demersal
cartilagenous fishes
marbled electric ray
common stingray
thornback ray

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