Knowledge (XXG)

Polyxenida

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1329: 1964: 1959: 151: 489: 312: 1996: 1281: 1716: 129: 1308: 1986: 1296: 480:, then develop through a series of seven molts and emerge as adults with 13 leg pairs and 10 tergites in the eighth stage. In this process, this millipede goes through stages with 3, 4, 5, 6, 8, 10, 12, and 13 leg pairs. Species in which adults have a different number of legs deviate from this common pattern. 1153: 422:
Bristly millipedes lack the chemical defenses and hard exoskeleton of other millipedes. Instead, these millipedes employ a unique defense mechanism: Bristles at the rear end of these millipedes feature hooks and barbs. These distinctive barbed bristles can easily detach and become entangled in the
392:, fewer legs (no more than 17 pairs), and an absence of copulatory appendages in males. Individuals are small, usually 1.5 to 4 millimeters (0.06 to 0.16 inches) long and not exceeding 7 millimeters (0.28 inches) long. Adults in most species have 13 pairs of legs, but in one species ( 464:
Millipedes in this order grow and develop through a series of molts, adding segments and legs until they reach a fixed number in the adult stage, which is the same in a given species. Adults continue to molt, but they do not add segments or legs. This mode of development is known as
1200: 756:. Linnean Society of London, Estuarine and Brackish-water Sciences Association. London: Published for the Linnean Society of London and the Estuarine and Brackish-Water Sciences Association by E.J. Brill. 974:"Morphological comparison of bisexual and parthenogenetic Polyxenus lagurus (Linne, 1758) (Diplopoda Polyxenidae) in Denmark and Southern Sweden, with notes on taxonomy, distribution and ecology" 1222:
Kraus, O; C. Brauckman (2003). "Fossil giants and surviving dwarfs. Arthropleurida and Pselaphognatha (Ateolocerata, Diplopoda): characters, phylogenetic relationships and construction".
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to Polyxenida. Others consider these extinct orders to be a sister group to Penicillata. Still others deem these extinct orders to be a sister group to the subclass Chilognatha instead.
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readily distinguished by a unique body plan consisting of a soft, non-calcified body ornamented with tufts of bristles. These features have inspired the common names
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into webs that they construct. Females then find these spermatophores by following threads spun by the males and pick up the spermatophores with their genitalia.
2472: 2256: 2546: 726:"A revised comprehensive checklist, relational database, and taxonomic system of reference for the bristly millipedes of the world (Diplopoda, Polyxenida)" 2191: 2459: 2230: 452:
have found males scarce or absent in parts of northeastern Europe. Authorities suspect that in these populations, this species reproduces by
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Sierwald, Petra; Bond, Jason E. (2007). "Current Status of the Myriapod Class Diplopoda (Millipedes): Taxonomic Diversity and Phylogeny".
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In 2003, the order Polyxenida contained 159 valid species and/or subspecies. At least eight new species have been described since 2010.
973: 761: 640: 2508: 2328: 1003:"Anamorphosis in Millipedes (Diplopoda) — The Present State of Knowledge with Some Developmental and Phylogenetic Considerations" 1002: 792:"Two remarkable new species of Penicillata (Diplopoda, Polyxenida) from Table Mountain National Park (Cape Town, South Africa)" 2464: 2235: 372:. This order includes about 148 species in four families worldwide, which represent the only living members of the subclass 1963: 1201:"The oldest records of Polyxenida (Myriapoda, Diplopoda): New discoveries from the Cretaceous ambers of Lebanon and France" 2243: 1958: 1312: 924: 608:
in France. These fossils indicate that the families Polyxenidae and Synxenidae already existed in the Cretaceous period.
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Zhang, Z.-Q.(ed.) Animal biodiversity : an outline of higher-level classification and survey of taxonomic richness"
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of all other living millipedes, which form the subclass Chilognatha. The subclass Chilognatha contains the infraclasses
2384: 2100: 2077: 150: 2477: 2425: 2170: 1979: 446:, wherein females lay eggs without mating and males are absent or rare. For example, studies of the common species 2261: 2541: 2438: 2183: 217: 838: 339: 1354: 333: 2017: 693: 466: 2105: 1300: 1241:
Shear, William A.; Edgecombe, Gregory D. (2010). "The geological record and phylogeny of the Myriapoda".
2495: 2292: 508: 394: 318: 234: 1989: 2310: 2513: 2487: 2407: 2333: 2271: 2139: 2064: 1323: 877: 2536: 2000: 1347: 1715: 274: 145: 2500: 2297: 2279: 2126: 1286: 1258: 1181: 1154:"Four new species of Unixenus Jones, 1944 (Diplopoda, Penicillata, Polyxenida) from Australia" 1134: 1049: 905: 819: 767: 757: 692:
Enghoff, Henrik; Golovatch, Sergei; Short, Megan; Stoev, Pavel; Wesener, Thomas (2015-01-01).
448: 137: 39: 2375: 2284: 1339: 2320: 2222: 1820: 1250: 1171: 1161: 1124: 1114: 1087: 1041: 1014: 895: 885: 809: 799: 701: 616: 589: 488: 2055: 435:) found in most other millipede groups. Instead, sperm transfer is indirect: Males deposit 1848: 1747: 1587: 1545: 1514: 1045: 520: 443: 357: 1328: 1068: 881: 311: 2433: 2420: 2178: 2165: 1898: 1838: 1810: 1765: 1760: 1635: 1592: 1533: 1496: 1176: 1129: 1018: 814: 791: 612: 585: 544: 324: 255: 2530: 1908: 1881: 1863: 1658: 900: 865: 593: 536: 436: 250: 86: 2389: 2131: 2069: 1933: 1871: 1755: 1668: 1577: 1564: 1280: 725: 620: 597: 512: 504: 496: 456:, that is, parthenogenisis in which unfertilized females produce female offspring. 400: 346: 128: 37:"Bristle millipede" redirects here. Not to be confused with the bristly millipede, 2082: 1107:"The genus Unixenus Jones, 1944 (Diplopoda, Penicillata, Polyxenida) in Australia" 2360: 842: 17: 2446: 2369: 2248: 2204: 2049: 1876: 1779: 1686: 1663: 1653: 1630: 1582: 1458: 790:
Nguyen Duy - Jacquemin, Monique; Uys, Charmaine; Geoffroy, Jean-Jacques (2011).
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Proceedings of the National Academy of Sciences of the United States of America
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limbs and mouth-parts of predatory insects, effectively immobilizing them.
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Treatise on Zoology - Anatomy, Taxonomy, Biology. The Myriapoda, Volume 2
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Polyxenida differ from other millipedes in having a soft, non-calcified
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Millipedes : keys and notes for the identification of the species
1625: 1386: 961:(5th ed.). Philadelphia: Saunders College Pub. pp. 674–683. 477: 288: 172: 2196: 2011: 476:. In this species, millipedes hatch with only 3 pairs of legs and 4 472:
The typical pattern in this order is observed in the common species
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Male Polyxenidans lack the modified sperm-transferring appendages (
2305: 487: 389: 310: 1318: 925:"Centipedes and Millipedes with Emphasis on North American Fauna" 619:(each represented by a single genus) within the Penicillata as a 592:
period. The fossil records also include representatives found in
2412: 866:"Millipede defense: use of detachable bristles to entangle ants" 2015: 1731: 1417: 1343: 2144: 1001:
Enghoff, Henrik; Dohle, Wolfgang; Blower, J. Gordon (1993).
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Segmentation of Polyxenida millipedes. From top to bottom:
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The earliest representatives of Polyxenida are found in
408:) in which they (along with those in one other species, 404:), they have 17 pairs of legs, except for one species ( 398:), they have only 11 pairs of legs, and in one genus ( 2344: 2024: 1926: 1917: 1895: 1862: 1847: 1829: 1807: 1778: 1746: 1677: 1644: 1614: 1605: 1563: 1544: 1526: 1495: 1486: 1457: 1432: 442:At least two species reproduce asexually by way of 1069:"Class Diplopoda de Blainville in Gervais, 1844. 724:Nguyen Duy-Jacquemin, M.; J.-J. Geoffroy (2003). 957:Barnes, Robert D. (1987). "15. The myriapods". 719: 717: 715: 648:. Ohio Division of Wildlife. pp. 3, 16–17. 1355: 8: 785: 783: 781: 511:subclass of millipedes. Penicillata is the 2012: 1923: 1859: 1804: 1743: 1739: 1728: 1611: 1560: 1556: 1492: 1483: 1429: 1425: 1414: 1362: 1348: 1340: 1327: 127: 47: 1175: 1165: 1128: 1118: 1007:Zoological Journal of the Linnean Society 899: 889: 813: 803: 864:Eisner, T; Eisner, M; Deyrup, M (1996). 660:"Order Polyxenida - Bristly Millipedes" 631: 507:order of the subclass Penicillata, the 996: 994: 611:Some authors place the extinct orders 1243:Arthropod Structure & Development 1046:10.1146/annurev.ento.52.111805.090210 7: 2488:0993649a-22d3-45f6-a9ca-220edb85f0e8 2439:83f5c846-9aaf-4647-b58f-ef552da12c49 2311:8E248799-FFBE-FFA0-FF39-E352777BECAB 2272:a801c654-5719-4384-89e9-997163decf77 2184:a1a358b0-4df4-4a41-956c-74dee0c5555d 1985: 745: 743: 687: 685: 683: 681: 679: 2547:Taxa named by Karl Wilhelm Verhoeff 1199:Duy-Jacquemin, MN; Azar, D (2004). 1152:Short, Megan; Huynh, Cuong (2013). 1105:Short, Megan; Huynh, Cuong (2011). 1019:10.1111/j.1096-3642.1993.tb00305.x 25: 1995: 1994: 1984: 1962: 1957: 1714: 1306: 1294: 1279: 694:"Diplopoda — taxonomic overview" 149: 388:, unique tufts of bristles or 1: 1224:Verh. Naturwiss. Ver. Hamburg 495:(Synxenidae), a species from 929:The Kansas School Naturalist 923:Shelley, Rowland M. (1999). 293:Schizocephala Verhoeff, 1926 1034:Annual Review of Entomology 639:Henen, Derek; Brown, Jeff. 2563: 1092:10.11646/zootaxa.3148.1.32 750:Blower, J. Gordon (1985). 493:Phryssonotus brevicapensis 406:Phryssonotus brevicapensis 340:Phryssonotus brevicapensis 36: 29: 1975: 1955: 1742: 1738: 1727: 1712: 1559: 1428: 1424: 1413: 1381: 1255:10.1016/j.asd.2009.11.002 981:Entomologiske Meddelelser 935:(3): 1–16. Archived from 706:10.1163/9789004188273_017 530:Superfamily Polyxenoidea 414:) have 15 pairs of legs. 280: 273: 247: 242: 146:Scientific classification 144: 135: 126: 50: 1689:(flat-backed millipedes) 1167:10.3897/zookeys.278.4765 1120:10.3897/zookeys.156.2168 972:Enghoff, Henrik (1976). 891:10.1073/pnas.93.20.10848 805:10.3897/zookeys.156.2211 562:Superfamily Synxenoidea 30:Not to be confused with 1517:(giant pill millipedes) 503:Polyxenida is the only 411:Condexenus biramipalpus 334:Condexenus biramipalpus 1853:(worm-like millipedes) 1568:(suctorial millipedes) 1550:(worm-like millipedes) 500: 350: 2496:Paleobiology Database 2293:Paleobiology Database 730:African Invertebrates 491: 395:Lophoturus madecassus 370:pincushion millipedes 319:Lophoturus madecassus 314: 2434:Fauna Europaea (new) 2179:Fauna Europaea (new) 1444:(bristle-millipedes) 1370:Orders of the class 1335:Photos of Polyxenida 1324:Encyclopedia of Life 1303:at Wikimedia Commons 959:Invertebrate zoology 837:Shelley, Rowland M. 882:1996PNAS...9310848E 27:Order of millipedes 845:on 30 October 2013 642:Millipedes of Ohio 501: 366:bristly millipedes 351: 2524: 2523: 2280:Open Tree of Life 2018:Taxon identifiers 2009: 2008: 1971: 1970: 1953: 1952: 1949: 1948: 1945: 1944: 1941: 1940: 1855: 1774: 1773: 1766:Microdecemplicida 1723: 1722: 1710: 1709: 1706: 1705: 1702: 1701: 1698: 1697: 1690: 1601: 1600: 1570: 1552: 1540: 1539: 1518: 1502: 1500:(pill millipedes) 1453: 1452: 1445: 1375: 1299:Media related to 1287:Arthropods portal 1067:Shear, W (2011). 573: 565: 557: 549: 541: 533: 499:described in 2011 474:Polyxenus lagurus 449:Polyxenus lagurus 309: 308: 304: 238: 221: 138:Polyxenus lagurus 57:Barremian–Present 40:Polyxenus lagurus 18:Bristle millipede 16:(Redirected from 2554: 2542:Millipede orders 2517: 2516: 2504: 2503: 2491: 2490: 2481: 2480: 2468: 2467: 2455: 2454: 2442: 2441: 2429: 2428: 2416: 2415: 2403: 2402: 2393: 2392: 2380: 2379: 2378: 2365: 2364: 2363: 2337: 2336: 2324: 2323: 2314: 2313: 2301: 2300: 2288: 2287: 2275: 2274: 2265: 2264: 2252: 2251: 2249:NBNSYS0100004812 2239: 2238: 2226: 2225: 2213: 2212: 2200: 2199: 2187: 2186: 2174: 2173: 2161: 2160: 2148: 2147: 2135: 2134: 2122: 2121: 2109: 2108: 2096: 2095: 2086: 2085: 2073: 2072: 2060: 2059: 2058: 2045: 2044: 2043: 2013: 1998: 1997: 1988: 1987: 1980:List of families 1966: 1961: 1929: 1924: 1920: 1902: 1860: 1854: 1851: 1814: 1805: 1761:Eoarthropleurida 1744: 1740: 1729: 1718: 1688: 1680: 1647: 1619: 1612: 1608: 1569: 1566: 1561: 1557: 1551: 1548: 1529: 1516: 1515:Sphaerotheriida 1501: 1498: 1493: 1484: 1443: 1430: 1426: 1415: 1373: 1364: 1357: 1350: 1341: 1331: 1311:Data related to 1310: 1298: 1289: 1284: 1283: 1267: 1266: 1249:(2–3): 174–190. 1238: 1232: 1231: 1219: 1213: 1212: 1196: 1190: 1189: 1179: 1169: 1149: 1143: 1142: 1132: 1122: 1113:(156): 105–122. 1102: 1096: 1095: 1077: 1064: 1058: 1057: 1029: 1023: 1022: 998: 989: 988: 978: 969: 963: 962: 954: 948: 947: 945: 944: 920: 914: 913: 903: 893: 876:(20): 10848–51. 861: 855: 854: 852: 850: 841:. Archived from 834: 828: 827: 817: 807: 787: 776: 775: 747: 738: 737: 721: 710: 709: 689: 674: 673: 671: 670: 656: 650: 649: 647: 636: 617:Eoarthropleurida 590:Early Cretaceous 571: 563: 555: 547: 539: 531: 467:hemianamorphosis 282: 233: 216: 154: 153: 131: 121: 58: 54:Temporal range: 48: 21: 2562: 2561: 2557: 2556: 2555: 2553: 2552: 2551: 2527: 2526: 2525: 2520: 2512: 2507: 2499: 2494: 2486: 2484: 2476: 2471: 2463: 2458: 2450: 2445: 2437: 2432: 2424: 2419: 2411: 2406: 2398: 2396: 2388: 2383: 2374: 2373: 2368: 2359: 2358: 2353: 2340: 2332: 2327: 2319: 2317: 2309: 2304: 2296: 2291: 2283: 2278: 2270: 2268: 2260: 2255: 2247: 2242: 2234: 2229: 2221: 2216: 2208: 2203: 2195: 2190: 2182: 2177: 2169: 2164: 2156: 2151: 2143: 2138: 2130: 2125: 2117: 2112: 2104: 2099: 2091: 2089: 2081: 2076: 2068: 2063: 2054: 2053: 2048: 2039: 2038: 2033: 2020: 2010: 2005: 1967: 1937: 1927: 1918: 1913: 1896: 1891: 1852: 1850: 1849:Helminthomorpha 1843: 1825: 1821:Zosterogrammida 1808: 1799: 1797: 1795: 1793: 1791: 1789: 1787: 1785: 1783: 1781: 1770: 1748:Arthropleuridea 1734: 1719: 1694: 1678: 1673: 1645: 1640: 1615: 1606: 1597: 1588:Siphonocryptida 1567: 1549: 1547: 1546:Helminthomorpha 1536: 1527: 1522: 1499: 1478: 1476: 1474: 1472: 1470: 1468: 1466: 1464: 1462: 1460: 1449: 1420: 1409: 1377: 1368: 1285: 1278: 1275: 1270: 1240: 1239: 1235: 1221: 1220: 1216: 1198: 1197: 1193: 1151: 1150: 1146: 1104: 1103: 1099: 1075: 1066: 1065: 1061: 1031: 1030: 1026: 1000: 999: 992: 976: 971: 970: 966: 956: 955: 951: 942: 940: 922: 921: 917: 863: 862: 858: 848: 846: 836: 835: 831: 798:(156): 85–103. 789: 788: 779: 764: 749: 748: 741: 723: 722: 713: 691: 690: 677: 668: 666: 658: 657: 653: 645: 638: 637: 633: 629: 582: 572:Silvestri, 1923 564:Silvestri, 1923 548:Silvestri, 1897 521:Helminthomorpha 486: 462: 444:parthenogenesis 429: 420: 382: 343: 331: 322: 316: 298: 294: 292: 287:Pselaphognatha 286: 232: 215: 148: 122: 120: 119: 114: 109: 104: 99: 94: 89: 84: 79: 74: 69: 64: 56: 55: 52: 44: 35: 28: 23: 22: 15: 12: 11: 5: 2560: 2558: 2550: 2549: 2544: 2539: 2529: 2528: 2522: 2521: 2519: 2518: 2505: 2492: 2482: 2469: 2456: 2443: 2430: 2421:Fauna Europaea 2417: 2404: 2394: 2381: 2366: 2350: 2348: 2342: 2341: 2339: 2338: 2325: 2315: 2302: 2289: 2276: 2266: 2253: 2240: 2227: 2214: 2201: 2188: 2175: 2166:Fauna Europaea 2162: 2149: 2136: 2123: 2110: 2097: 2087: 2074: 2061: 2046: 2030: 2028: 2022: 2021: 2016: 2007: 2006: 2004: 2003: 1992: 1982: 1976: 1973: 1972: 1969: 1968: 1956: 1954: 1951: 1950: 1947: 1946: 1943: 1942: 1939: 1938: 1932: 1930: 1921: 1915: 1914: 1912: 1911: 1905: 1903: 1899:incertae sedis 1893: 1892: 1890: 1889: 1887:Palaeosomatida 1884: 1879: 1874: 1868: 1866: 1857: 1845: 1844: 1842: 1841: 1839:Amynilyspedida 1835: 1833: 1827: 1826: 1824: 1823: 1817: 1815: 1811:incertae sedis 1802: 1776: 1775: 1772: 1771: 1769: 1768: 1763: 1758: 1756:Arthropleurida 1752: 1750: 1736: 1735: 1732: 1725: 1724: 1721: 1720: 1713: 1711: 1708: 1707: 1704: 1703: 1700: 1699: 1696: 1695: 1693: 1692: 1683: 1681: 1675: 1674: 1672: 1671: 1666: 1661: 1656: 1650: 1648: 1642: 1641: 1639: 1638: 1636:Spirostreptida 1633: 1628: 1622: 1620: 1609: 1603: 1602: 1599: 1598: 1596: 1595: 1593:Siphonophorida 1590: 1585: 1580: 1574: 1572: 1554: 1542: 1541: 1538: 1537: 1534:Glomeridesmida 1532: 1530: 1524: 1523: 1521: 1520: 1512: 1506: 1504: 1490: 1481: 1455: 1454: 1451: 1450: 1448: 1447: 1438: 1436: 1422: 1421: 1418: 1411: 1410: 1408: 1407: 1401: 1395: 1389: 1382: 1379: 1378: 1369: 1367: 1366: 1359: 1352: 1344: 1338: 1337: 1332: 1316: 1315:at Wikispecies 1304: 1291: 1290: 1274: 1273:External links 1271: 1269: 1268: 1233: 1214: 1191: 1160:(278): 75–90. 1144: 1097: 1059: 1040:(1): 401–420. 1024: 1013:(2): 103–234. 990: 964: 949: 915: 856: 829: 777: 762: 739: 711: 675: 651: 630: 628: 625: 613:Arthropleurida 606:Haute-Provence 586:Lebanese amber 581: 580:Fossil history 578: 577: 576: 575: 574: 560: 559: 558: 550: 545:Lophoproctidae 542: 540:Schubart, 1947 485: 484:Classification 482: 461: 458: 437:spermatophores 428: 425: 419: 416: 381: 378: 325:Lophoproctidae 307: 306: 278: 277: 271: 270: 269: 268: 263: 258: 256:Lophoproctidae 253: 245: 244: 240: 239: 227: 223: 222: 210: 206: 205: 200: 196: 195: 190: 186: 185: 180: 176: 175: 170: 166: 165: 160: 156: 155: 142: 141: 133: 132: 124: 123: 115: 110: 105: 100: 95: 90: 85: 80: 75: 70: 65: 60: 59: 53: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2559: 2548: 2545: 2543: 2540: 2538: 2535: 2534: 2532: 2515: 2510: 2506: 2502: 2497: 2493: 2489: 2483: 2479: 2474: 2470: 2466: 2461: 2457: 2453: 2448: 2444: 2440: 2435: 2431: 2427: 2422: 2418: 2414: 2409: 2405: 2401: 2395: 2391: 2386: 2382: 2377: 2371: 2367: 2362: 2356: 2352: 2351: 2349: 2347: 2343: 2335: 2330: 2326: 2322: 2316: 2312: 2307: 2303: 2299: 2294: 2290: 2286: 2281: 2277: 2273: 2267: 2263: 2258: 2254: 2250: 2245: 2241: 2237: 2232: 2228: 2224: 2219: 2215: 2211: 2206: 2202: 2198: 2193: 2189: 2185: 2180: 2176: 2172: 2167: 2163: 2159: 2154: 2150: 2146: 2141: 2137: 2133: 2128: 2124: 2120: 2115: 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1480: 1456: 1446: 1440: 1439: 1437: 1435: 1431: 1427: 1423: 1416: 1412: 1406: 1402: 1400: 1396: 1394: 1390: 1388: 1384: 1383: 1380: 1376: 1365: 1360: 1358: 1353: 1351: 1346: 1345: 1342: 1336: 1333: 1330: 1326: 1325: 1320: 1317: 1314: 1309: 1305: 1302: 1297: 1293: 1292: 1288: 1282: 1277: 1272: 1264: 1260: 1256: 1252: 1248: 1244: 1237: 1234: 1229: 1225: 1218: 1215: 1211:(4): 631–641. 1210: 1206: 1205:Geodiversitas 1202: 1195: 1192: 1187: 1183: 1178: 1173: 1168: 1163: 1159: 1155: 1148: 1145: 1140: 1136: 1131: 1126: 1121: 1116: 1112: 1108: 1101: 1098: 1093: 1089: 1085: 1081: 1074: 1072: 1063: 1060: 1055: 1051: 1047: 1043: 1039: 1035: 1028: 1025: 1020: 1016: 1012: 1008: 1004: 997: 995: 991: 986: 982: 975: 968: 965: 960: 953: 950: 939:on 2016-11-12 938: 934: 930: 926: 919: 916: 911: 907: 902: 897: 892: 887: 883: 879: 875: 871: 867: 860: 857: 844: 840: 833: 830: 825: 821: 816: 811: 806: 801: 797: 793: 786: 784: 782: 778: 773: 769: 765: 763:90-04-07698-0 759: 755: 754: 746: 744: 740: 735: 731: 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1909:Pleurojulida 1897: 1882:Euphoberiida 1877:Cowiedesmida 1872:Archidesmida 1809: 1687:Polydesmida 1664:Siphoniulida 1578:Platydesmida 1528:Limacomorpha 1441: 1433: 1391:Superphylum 1374:(millipedes) 1322: 1319:"Polyxenida" 1246: 1242: 1236: 1227: 1223: 1217: 1208: 1204: 1194: 1157: 1147: 1110: 1100: 1083: 1079: 1070: 1062: 1037: 1033: 1027: 1010: 1006: 984: 980: 967: 958: 952: 941:. 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Index

Bristle millipede
Polyxenidas
Polyxenus lagurus
PreꞒ

O
S
D
C
P
T
J
K
Pg
N

Polyxenus lagurus
Scientific classification
Edit this classification
Eukaryota
Animalia
Arthropoda
Myriapoda
Diplopoda
Penicillata
Latrielle
Polyxenida
Verhoeff
Hypogexenidae
Lophoproctidae

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