21:
250:
267:
1999:
233:
79:
69:
64:
2004:
1974:
1957:
1940:
1923:
1906:
1889:
1872:
1855:
1838:
1821:
1804:
1787:
1770:
1753:
1736:
1719:
1702:
1685:
1668:
1651:
1634:
1617:
1600:
1583:
1566:
1549:
1532:
1515:
1498:
1481:
1464:
1447:
1430:
1413:
1396:
1379:
1362:
1345:
1328:
1311:
1294:
1277:
1260:
1243:
1226:
1209:
1192:
1175:
1158:
1141:
1124:
1107:
1090:
1073:
1056:
1039:
1022:
1005:
988:
971:
954:
937:
920:
903:
886:
869:
852:
835:
818:
801:
784:
767:
750:
733:
716:
699:
682:
665:
648:
631:
614:
597:
580:
563:
546:
529:
512:
495:
478:
461:
444:
427:
410:
393:
376:
359:
342:
325:
308:
291:
28:
36:
117:
1993:
271:
254:
237:
1978:
1944:
1927:
1876:
1842:
1825:
1808:
1774:
1757:
1740:
1723:
1689:
1672:
1621:
1604:
1553:
1502:
1485:
1434:
1366:
1332:
1298:
1230:
1213:
1196:
1179:
1128:
1111:
1026:
992:
958:
907:
890:
856:
839:
822:
788:
771:
754:
737:
720:
686:
669:
652:
635:
618:
601:
584:
550:
533:
516:
499:
482:
465:
448:
431:
414:
397:
380:
363:
312:
295:
1961:
1910:
1706:
1655:
1587:
1570:
1468:
1451:
1400:
1349:
1281:
1247:
1145:
1094:
1043:
975:
805:
703:
567:
346:
329:
1893:
1859:
1536:
1383:
1315:
1264:
1077:
1060:
1009:
941:
873:
1791:
1638:
1519:
1417:
1162:
924:
108:
217:
This category has the following 103 subcategories, out of 103 total.
15:
202:
199:
196:
193:
190:
187:
184:
181:
178:
175:
172:
169:
166:
163:
160:
157:
154:
151:
148:
145:
142:
139:
136:
133:
130:
127:
122:
44:
8:
251:Cephalopods described in the 20th century
268:Gastropods described in the 20th century
2000:Molluscs by year of formal description
234:Bivalves described in the 20th century
32:. Due to its scope, it should contain
2005:Animals described in the 20th century
7:
1971:
1954:
1937:
1920:
1903:
1886:
1869:
1852:
1835:
1818:
1801:
1784:
1767:
1750:
1733:
1716:
1699:
1682:
1665:
1648:
1631:
1614:
1597:
1580:
1563:
1546:
1529:
1512:
1495:
1478:
1461:
1444:
1427:
1410:
1393:
1376:
1359:
1342:
1325:
1308:
1291:
1274:
1257:
1240:
1223:
1206:
1189:
1172:
1155:
1138:
1121:
1104:
1087:
1070:
1053:
1036:
1019:
1002:
985:
968:
951:
934:
917:
900:
883:
866:
849:
832:
815:
798:
781:
764:
747:
730:
713:
696:
679:
662:
645:
628:
611:
594:
577:
560:
543:
526:
509:
492:
475:
458:
441:
424:
407:
390:
373:
356:
339:
322:
305:
288:
264:
247:
230:
219:
211:
14:
19:
1:
2021:
1975:Molluscs described in 2000
1958:Molluscs described in 1999
1941:Molluscs described in 1998
1924:Molluscs described in 1997
1907:Molluscs described in 1996
1890:Molluscs described in 1995
1873:Molluscs described in 1994
1856:Molluscs described in 1993
1839:Molluscs described in 1992
1822:Molluscs described in 1991
1805:Molluscs described in 1990
1788:Molluscs described in 1989
1771:Molluscs described in 1988
1754:Molluscs described in 1987
1737:Molluscs described in 1986
1720:Molluscs described in 1985
1703:Molluscs described in 1984
1686:Molluscs described in 1983
1669:Molluscs described in 1982
1652:Molluscs described in 1981
1635:Molluscs described in 1980
1618:Molluscs described in 1979
1601:Molluscs described in 1978
1584:Molluscs described in 1977
1567:Molluscs described in 1976
1550:Molluscs described in 1975
1533:Molluscs described in 1974
1516:Molluscs described in 1973
1499:Molluscs described in 1972
1482:Molluscs described in 1971
1465:Molluscs described in 1970
1448:Molluscs described in 1969
1431:Molluscs described in 1968
1414:Molluscs described in 1967
1397:Molluscs described in 1966
1380:Molluscs described in 1965
1363:Molluscs described in 1964
1346:Molluscs described in 1963
1329:Molluscs described in 1962
1312:Molluscs described in 1961
1295:Molluscs described in 1960
1278:Molluscs described in 1959
1261:Molluscs described in 1958
1244:Molluscs described in 1957
1227:Molluscs described in 1956
1210:Molluscs described in 1955
1193:Molluscs described in 1954
1176:Molluscs described in 1953
1159:Molluscs described in 1952
1142:Molluscs described in 1951
1125:Molluscs described in 1950
1108:Molluscs described in 1949
1091:Molluscs described in 1948
1074:Molluscs described in 1947
1057:Molluscs described in 1946
1040:Molluscs described in 1945
1023:Molluscs described in 1944
1006:Molluscs described in 1943
989:Molluscs described in 1942
972:Molluscs described in 1941
955:Molluscs described in 1940
938:Molluscs described in 1939
921:Molluscs described in 1938
904:Molluscs described in 1937
887:Molluscs described in 1936
870:Molluscs described in 1935
853:Molluscs described in 1934
836:Molluscs described in 1933
819:Molluscs described in 1932
802:Molluscs described in 1931
785:Molluscs described in 1930
768:Molluscs described in 1929
751:Molluscs described in 1928
734:Molluscs described in 1927
717:Molluscs described in 1926
700:Molluscs described in 1925
683:Molluscs described in 1924
666:Molluscs described in 1923
649:Molluscs described in 1922
632:Molluscs described in 1921
615:Molluscs described in 1920
598:Molluscs described in 1919
581:Molluscs described in 1918
564:Molluscs described in 1917
547:Molluscs described in 1916
530:Molluscs described in 1915
513:Molluscs described in 1914
496:Molluscs described in 1913
479:Molluscs described in 1912
462:Molluscs described in 1911
445:Molluscs described in 1910
428:Molluscs described in 1909
411:Molluscs described in 1908
394:Molluscs described in 1907
377:Molluscs described in 1906
360:Molluscs described in 1905
343:Molluscs described in 1904
326:Molluscs described in 1903
309:Molluscs described in 1902
292:Molluscs described in 1901
29:container category
43:
42:
2012:
1980:
1973:
1963:
1956:
1946:
1939:
1929:
1922:
1912:
1905:
1895:
1888:
1878:
1871:
1861:
1854:
1844:
1837:
1827:
1820:
1810:
1803:
1793:
1786:
1776:
1769:
1759:
1752:
1742:
1735:
1725:
1718:
1708:
1701:
1691:
1684:
1674:
1667:
1657:
1650:
1640:
1633:
1623:
1616:
1606:
1599:
1589:
1582:
1572:
1565:
1555:
1548:
1538:
1531:
1521:
1514:
1504:
1497:
1487:
1480:
1470:
1463:
1453:
1446:
1436:
1429:
1419:
1412:
1402:
1395:
1385:
1378:
1368:
1361:
1351:
1344:
1334:
1327:
1317:
1310:
1300:
1293:
1283:
1276:
1266:
1259:
1249:
1242:
1232:
1225:
1215:
1208:
1198:
1191:
1181:
1174:
1164:
1157:
1147:
1140:
1130:
1123:
1113:
1106:
1096:
1089:
1079:
1072:
1062:
1055:
1045:
1038:
1028:
1021:
1011:
1004:
994:
987:
977:
970:
960:
953:
943:
936:
926:
919:
909:
902:
892:
885:
875:
868:
858:
851:
841:
834:
824:
817:
807:
800:
790:
783:
773:
766:
756:
749:
739:
732:
722:
715:
705:
698:
688:
681:
671:
664:
654:
647:
637:
630:
620:
613:
603:
596:
586:
579:
569:
562:
552:
545:
535:
528:
518:
511:
501:
494:
484:
477:
467:
460:
450:
443:
433:
426:
416:
409:
399:
392:
382:
375:
365:
358:
348:
341:
331:
324:
314:
307:
297:
290:
273:
266:
256:
249:
239:
232:
101:
96:
91:
86:
61:
56:
51:
23:
22:
16:
2020:
2019:
2015:
2014:
2013:
2011:
2010:
2009:
1990:
1989:
1988:
1987:
1986:
1985:
1982:
1981:
1970:
1965:
1964:
1953:
1948:
1947:
1936:
1931:
1930:
1919:
1914:
1913:
1902:
1897:
1896:
1885:
1880:
1879:
1868:
1863:
1862:
1851:
1846:
1845:
1834:
1829:
1828:
1817:
1812:
1811:
1800:
1795:
1794:
1783:
1778:
1777:
1766:
1761:
1760:
1749:
1744:
1743:
1732:
1727:
1726:
1715:
1710:
1709:
1698:
1693:
1692:
1681:
1676:
1675:
1664:
1659:
1658:
1647:
1642:
1641:
1630:
1625:
1624:
1613:
1608:
1607:
1596:
1591:
1590:
1579:
1574:
1573:
1562:
1557:
1556:
1545:
1540:
1539:
1528:
1523:
1522:
1511:
1506:
1505:
1494:
1489:
1488:
1477:
1472:
1471:
1460:
1455:
1454:
1443:
1438:
1437:
1426:
1421:
1420:
1409:
1404:
1403:
1392:
1387:
1386:
1375:
1370:
1369:
1358:
1353:
1352:
1341:
1336:
1335:
1324:
1319:
1318:
1307:
1302:
1301:
1290:
1285:
1284:
1273:
1268:
1267:
1256:
1251:
1250:
1239:
1234:
1233:
1222:
1217:
1216:
1205:
1200:
1199:
1188:
1183:
1182:
1171:
1166:
1165:
1154:
1149:
1148:
1137:
1132:
1131:
1120:
1115:
1114:
1103:
1098:
1097:
1086:
1081:
1080:
1069:
1064:
1063:
1052:
1047:
1046:
1035:
1030:
1029:
1018:
1013:
1012:
1001:
996:
995:
984:
979:
978:
967:
962:
961:
950:
945:
944:
933:
928:
927:
916:
911:
910:
899:
894:
893:
882:
877:
876:
865:
860:
859:
848:
843:
842:
831:
826:
825:
814:
809:
808:
797:
792:
791:
780:
775:
774:
763:
758:
757:
746:
741:
740:
729:
724:
723:
712:
707:
706:
695:
690:
689:
678:
673:
672:
661:
656:
655:
644:
639:
638:
627:
622:
621:
610:
605:
604:
593:
588:
587:
576:
571:
570:
559:
554:
553:
542:
537:
536:
525:
520:
519:
508:
503:
502:
491:
486:
485:
474:
469:
468:
457:
452:
451:
440:
435:
434:
423:
418:
417:
406:
401:
400:
389:
384:
383:
372:
367:
366:
355:
350:
349:
338:
333:
332:
321:
316:
315:
304:
299:
298:
287:
278:
275:
274:
263:
258:
257:
246:
241:
240:
229:
210:
209:
208:
207:
113:
106:
105:
104:
99:
94:
89:
84:
59:
54:
49:
20:
12:
11:
5:
2018:
2016:
2008:
2007:
2002:
1992:
1991:
1984:
1983:
1969:
1968:
1966:
1952:
1951:
1949:
1935:
1934:
1932:
1918:
1917:
1915:
1901:
1900:
1898:
1884:
1883:
1881:
1867:
1866:
1864:
1850:
1849:
1847:
1833:
1832:
1830:
1816:
1815:
1813:
1799:
1798:
1796:
1782:
1781:
1779:
1765:
1764:
1762:
1748:
1747:
1745:
1731:
1730:
1728:
1714:
1713:
1711:
1697:
1696:
1694:
1680:
1679:
1677:
1663:
1662:
1660:
1646:
1645:
1643:
1629:
1628:
1626:
1612:
1611:
1609:
1595:
1594:
1592:
1578:
1577:
1575:
1561:
1560:
1558:
1544:
1543:
1541:
1527:
1526:
1524:
1510:
1509:
1507:
1493:
1492:
1490:
1476:
1475:
1473:
1459:
1458:
1456:
1442:
1441:
1439:
1425:
1424:
1422:
1408:
1407:
1405:
1391:
1390:
1388:
1374:
1373:
1371:
1357:
1356:
1354:
1340:
1339:
1337:
1323:
1322:
1320:
1306:
1305:
1303:
1289:
1288:
1286:
1272:
1271:
1269:
1255:
1254:
1252:
1238:
1237:
1235:
1221:
1220:
1218:
1204:
1203:
1201:
1187:
1186:
1184:
1170:
1169:
1167:
1153:
1152:
1150:
1136:
1135:
1133:
1119:
1118:
1116:
1102:
1101:
1099:
1085:
1084:
1082:
1068:
1067:
1065:
1051:
1050:
1048:
1034:
1033:
1031:
1017:
1016:
1014:
1000:
999:
997:
983:
982:
980:
966:
965:
963:
949:
948:
946:
932:
931:
929:
915:
914:
912:
898:
897:
895:
881:
880:
878:
864:
863:
861:
847:
846:
844:
830:
829:
827:
813:
812:
810:
796:
795:
793:
779:
778:
776:
762:
761:
759:
745:
744:
742:
728:
727:
725:
711:
710:
708:
694:
693:
691:
677:
676:
674:
660:
659:
657:
643:
642:
640:
626:
625:
623:
609:
608:
606:
592:
591:
589:
575:
574:
572:
558:
557:
555:
541:
540:
538:
524:
523:
521:
507:
506:
504:
490:
489:
487:
473:
472:
470:
456:
455:
453:
439:
438:
436:
422:
421:
419:
405:
404:
402:
388:
387:
385:
371:
370:
368:
354:
353:
351:
337:
336:
334:
320:
319:
317:
303:
302:
300:
286:
285:
282:
279:
277:
276:
262:
261:
259:
245:
244:
242:
228:
227:
224:
221:
220:
215:
212:
206:
205:
125:
120:
114:
112:
109:
107:
103:
102:
97:
92:
87:
82:
77:
72:
67:
62:
57:
52:
46:
45:
41:
40:
24:
13:
10:
9:
6:
4:
3:
2:
2017:
2006:
2003:
2001:
1998:
1997:
1995:
1976:
1972:
1967:
1959:
1955:
1950:
1942:
1938:
1933:
1925:
1921:
1916:
1908:
1904:
1899:
1891:
1887:
1882:
1874:
1870:
1865:
1857:
1853:
1848:
1840:
1836:
1831:
1823:
1819:
1814:
1806:
1802:
1797:
1789:
1785:
1780:
1772:
1768:
1763:
1755:
1751:
1746:
1738:
1734:
1729:
1721:
1717:
1712:
1704:
1700:
1695:
1687:
1683:
1678:
1670:
1666:
1661:
1653:
1649:
1644:
1636:
1632:
1627:
1619:
1615:
1610:
1602:
1598:
1593:
1585:
1581:
1576:
1568:
1564:
1559:
1551:
1547:
1542:
1534:
1530:
1525:
1517:
1513:
1508:
1500:
1496:
1491:
1483:
1479:
1474:
1466:
1462:
1457:
1449:
1445:
1440:
1432:
1428:
1423:
1415:
1411:
1406:
1398:
1394:
1389:
1381:
1377:
1372:
1364:
1360:
1355:
1347:
1343:
1338:
1330:
1326:
1321:
1313:
1309:
1304:
1296:
1292:
1287:
1279:
1275:
1270:
1262:
1258:
1253:
1245:
1241:
1236:
1228:
1224:
1219:
1211:
1207:
1202:
1194:
1190:
1185:
1177:
1173:
1168:
1160:
1156:
1151:
1143:
1139:
1134:
1126:
1122:
1117:
1109:
1105:
1100:
1092:
1088:
1083:
1075:
1071:
1066:
1058:
1054:
1049:
1041:
1037:
1032:
1024:
1020:
1015:
1007:
1003:
998:
990:
986:
981:
973:
969:
964:
956:
952:
947:
939:
935:
930:
922:
918:
913:
905:
901:
896:
888:
884:
879:
871:
867:
862:
854:
850:
845:
837:
833:
828:
820:
816:
811:
803:
799:
794:
786:
782:
777:
769:
765:
760:
752:
748:
743:
735:
731:
726:
718:
714:
709:
701:
697:
692:
684:
680:
675:
667:
663:
658:
650:
646:
641:
633:
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214:Subcategories
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38:
37:subcategories
35:
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25:
18:
17:
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74:
33:
27:
1994:Categories
1962:(2 C, 1 P)
1945:(2 C, 3 P)
1928:(2 C, 2 P)
1911:(2 C, 1 P)
1877:(2 C, 2 P)
1860:(1 C, 2 P)
1843:(2 C, 2 P)
1809:(2 C, 2 P)
1792:(1 C, 1 P)
1775:(2 C, 3 P)
1724:(2 C, 3 P)
1707:(2 C, 1 P)
1690:(2 C, 5 P)
1673:(2 C, 3 P)
1656:(2 C, 1 P)
1639:(1 C, 1 P)
1622:(2 C, 2 P)
1588:(3 C, 1 P)
1571:(2 C, 1 P)
1554:(2 C, 2 P)
1520:(1 C, 1 P)
1503:(2 C, 3 P)
1486:(2 C, 2 P)
1469:(2 C, 1 P)
1452:(2 C, 1 P)
1435:(2 C, 2 P)
1418:(1 C, 1 P)
1401:(2 C, 1 P)
1367:(2 C, 3 P)
1350:(2 C, 1 P)
1299:(2 C, 3 P)
1282:(3 C, 1 P)
1248:(2 C, 1 P)
1231:(2 C, 4 P)
1214:(2 C, 3 P)
1197:(2 C, 2 P)
1180:(2 C, 2 P)
1163:(1 C, 1 P)
1146:(2 C, 1 P)
1095:(2 C, 1 P)
1044:(2 C, 1 P)
976:(2 C, 1 P)
959:(2 C, 2 P)
942:(1 C, 3 P)
925:(1 C, 1 P)
908:(2 C, 4 P)
891:(2 C, 2 P)
874:(1 C, 2 P)
857:(2 C, 5 P)
823:(2 C, 2 P)
806:(2 C, 1 P)
789:(3 C, 4 P)
772:(3 C, 3 P)
738:(3 C, 2 P)
721:(2 C, 2 P)
704:(2 C, 1 P)
687:(2 C, 2 P)
670:(2 C, 2 P)
653:(2 C, 4 P)
636:(2 C, 3 P)
585:(3 C, 2 P)
568:(2 C, 1 P)
534:(2 C, 3 P)
517:(2 C, 3 P)
500:(2 C, 3 P)
483:(2 C, 2 P)
466:(2 C, 2 P)
449:(2 C, 9 P)
432:(2 C, 6 P)
415:(2 C, 4 P)
398:(3 C, 6 P)
364:(2 C, 3 P)
347:(2 C, 1 P)
330:(2 C, 1 P)
313:(2 C, 2 P)
26:This is a
111:Contents
272:(100 C)
255:(80 C)
238:(14 C)
1979:(2 C)
1894:(1 C)
1826:(3 C)
1758:(2 C)
1741:(2 C)
1605:(2 C)
1537:(1 C)
1384:(1 C)
1333:(3 C)
1316:(1 C)
1265:(1 C)
1129:(2 C)
1112:(2 C)
1078:(1 C)
1061:(1 C)
1027:(2 C)
1010:(1 C)
993:(2 C)
840:(2 C)
755:(3 C)
619:(2 C)
602:(2 C)
551:(2 C)
381:(3 C)
296:(2 C)
100:25th
95:24th
90:23rd
85:22nd
80:21st
75:20th
70:19th
65:18th
60:17th
55:16th
50:15th
34:only
281:0–9
123:0–9
118:Top
1996::
1977:
1960:
1943:
1926:
1909:
1892:
1875:
1858:
1841:
1824:
1807:
1790:
1773:
1756:
1739:
1722:
1705:
1688:
1671:
1654:
1637:
1620:
1603:
1586:
1569:
1552:
1535:
1518:
1501:
1484:
1467:
1450:
1433:
1416:
1399:
1382:
1365:
1348:
1331:
1314:
1297:
1280:
1263:
1246:
1229:
1212:
1195:
1178:
1161:
1144:
1127:
1110:
1093:
1076:
1059:
1042:
1025:
1008:
991:
974:
957:
940:
923:
906:
889:
872:
855:
838:
821:
804:
787:
770:
753:
736:
719:
702:
685:
668:
651:
634:
617:
600:
583:
566:
549:
532:
515:
498:
481:
464:
447:
430:
413:
396:
379:
362:
345:
328:
311:
294:
270:
253:
236:
223:*
203:Z
200:Y
197:X
194:W
191:V
188:U
185:T
182:S
179:R
176:Q
173:P
170:O
167:N
164:M
161:L
158:K
155:J
152:I
149:H
146:G
143:F
140:E
137:D
134:C
131:B
128:A
39:.
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