33:
905:
53:
915:
910:
429:
974:
398:
454:
With a typical head-and-body length of about 15 cm (5.9 in) and a 12 cm (4.7 in) long tail, dwarf squirrels are relatively small. However, the
319:
405:
590:
PeÄŤnerová, P. & MartĂnková, N. (February 2012). "Evolutionary history of tree squirrels (Rodentia, Sciurini) based on multilocus phylogeny reconstruction".
384:
391:
627:"Museomics of tree squirrels: A dense taxon sampling of mitogenomes reveals hidden diversity, phenotypic convergence, and the need of a taxonomic overhaul"
474:. Estimates of their abundance are limited. The IUCN lists the conservation status as "Least Concern" for three of the species and "Data Deficient" for
1504:
32:
1543:
625:
De Abreu-Jr, Edson
Fiedler; Pavan, Silvia E.; Tsuchiya, Mirian T. N.; Wilson, Don E.; Percequillo, Alexandre R.; Maldonado, JesĂşs E. (2020).
784:
1478:
1617:
1517:
1535:
520:
1522:
762:
1607:
1612:
757:
219:
analysis has shown that there is some confusion regarding the traditional classification of the species in the genus
498:
1548:
867:
777:
334:
235:
1301:
1292:
1278:
1270:
1530:
1439:
476:
52:
1444:
904:
770:
455:
458:, not in this genus, is much smaller than these species, as are certain squirrels in Africa and Asia.
313:
into three genera, one currently unnamed. The paper included genetic sampling from all species except
1340:
1182:
982:
891:
314:
288:
568:
510:
1602:
1574:
1417:
1379:
1022:
933:
924:
883:
358:
271:
1509:
1597:
1569:
1561:
1348:
1150:
1142:
1134:
1086:
1030:
875:
420:
252:
1066:
792:
1465:
1426:
1206:
1190:
1158:
638:
471:
8:
1214:
1166:
1126:
1106:
990:
168:
642:
1363:
1250:
1038:
966:
661:
626:
607:
47:
1556:
1452:
1431:
1174:
998:
753:
666:
603:
526:
516:
611:
545:
1457:
1332:
1230:
701:
656:
646:
599:
563:
261:
244:
151:
1014:
1006:
367:
280:
1058:
651:
439:
706:
685:
1591:
1402:
1315:
914:
554:
506:
530:
1222:
1198:
839:
670:
266:
160:
1491:
1411:
1483:
1496:
798:
305:
224:
124:
64:
1373:
1396:
909:
821:
802:
794:
204:
134:
114:
84:
515:(3rd ed.). Johns Hopkins University Press. pp. 757–758.
947:
721:
512:
Mammal
Species of the World: A Taxonomic and Geographic Reference
376:
228:
833:
827:
815:
104:
94:
74:
1470:
624:
543:
200:
589:
216:
207:
from the tropical regions of
Central and South America.
323:. It suggests several new species, not all described.
462:
species have gray or brown backs, and white bellies.
249:, Costa Rica, Nicaragua, Panama, northern Colombia
496:
1589:
544:Amori, G.; Koprowski, J. & Roth, L. (2008).
778:
437:from Peru and Brazil (previously assigned to
683:
583:
569:10.2305/IUCN.UK.2008.RLTS.T13412A3904007.en
497:Thorington, R.W. Jr; Hoffman, R.S. (2005).
465:
210:
785:
771:
470:All dwarf squirrels in this genus live in
303:A 2020 paper published on the taxonomy of
31:
722:"The IUCN Red List of Threatened Species"
705:
684:Jessen, T.G.; et al. (August 2016).
677:
660:
650:
567:
752:. Johns Hopkins University Press, 1999
1590:
1378:
1377:
766:
726:IUCN Red List of Threatened Species
555:IUCN Red List of Threatened Species
537:
490:
13:
14:
1629:
913:
908:
903:
868:Central American dwarf squirrel
604:10.1111/j.1463-6409.2011.00528.x
51:
742:
335:Central American dwarf squirrel
236:Central American dwarf squirrel
1618:Taxa named by Joel Asaph Allen
714:
618:
449:
1:
1279:Southern Amazon red squirrel
1271:Northern Amazon red squirrel
894:(Microsciurus santanderensis)
750:Walker's Mammals of the World
483:
227:. Currently, there are four
223:, and that the genus may be
7:
548:Microsciurus santanderensis
477:Microsciurus santanderensis
293:Microsciurus santanderensis
285:, Ecuador, Colombia, Panama
10:
1634:
1608:Rodents of Central America
1341:Southwestern red squirrel
1302:Bangs's mountain squirrel
975:South Yungas red squirrel
936:(Rheithrosciurus macrotis)
878:(Microsciurus flaviventer)
652:10.1186/s12862-020-01639-y
456:Neotropical pygmy squirrel
435:"Microsciurus" "species 2"
1386:
1360:
1351:(Tamiasciurus hudsonicus)
1313:
1290:
1183:Calabrian black squirrel
1007:Atlantic Forest squirrel
983:Yellow-throated squirrel
945:
922:
901:
892:Santander dwarf squirrel
848:
810:
793:Extant species of family
430:"Microsciurus" sabanillae
399:Leptosciurnus boquetensis
181:
176:
166:
159:
48:Scientific classification
46:
39:
30:
23:
1613:Mammals of South America
1335:(Tamiasciurus douglasii)
1304:(Syntheosciurus brochus)
688:Microsciurus flaviventer
631:BMC Evolutionary Biology
466:Distribution and habitat
344:Microsciurus "species 1"
315:Santander dwarf squirrel
289:Santander dwarf squirrel
257:Microsciurus flaviventer
211:Taxonomy and systematics
41:Microsciurus flaviventer
1343:(Tamiasciurus fremonti)
1217:(Sciurus variegatoides)
934:Tufted ground squirrel
884:Western dwarf squirrel
707:10.1093/mspecies/sew006
297:Hernández-Camacho, 1957
1349:American red squirrel
1233:(Sciurus yucatanensis)
1193:(Sciurus nayaritensis)
1185:(Sciurus meridionalis)
1153:(Sciurus carolinensis)
1151:Eastern gray squirrel
1143:Mexican gray squirrel
1135:Arizona gray squirrel
1087:Western gray squirrel
985:(Sciurus gilvigularis)
886:(Microsciurus mimulus)
876:Amazon dwarf squirrel
690:(Rodentia: Sciuridae)"
509:; Reeder, D.M (eds.).
359:Western dwarf squirrel
320:(Microsciurus) simonsi
272:Western dwarf squirrel
1570:Paleobiology Database
1273:(Sciurus igniventris)
1191:Mexican fox squirrel
1145:(Sciurus aureogaster)
1137:(Sciurus arizonensis)
993:(Sciurus granatensis)
977:(Sciurus argentinius)
870:(Microsciurus alfari)
472:tropical rain forests
421:Amazon dwarf squirrel
406:Leptosciurus isthmius
253:Amazon dwarf squirrel
1215:Variegated squirrel
1041:(Sciurus stramineus)
1023:Richmond's squirrel
1017:(Sciurus pucheranii)
991:Red-tailed squirrel
562:: e.T13412A3904007.
385:Leptosciurus similis
276:Microsciurus mimulus
1281:(Sciurus spadiceus)
1251:Caucasian squirrel
1069:(Sciurus pyrrhinus)
1067:JunĂn red squirrel
1061:(Sciurus flammifer)
1039:Guayaquil squirrel
1031:Sanborn's squirrel
1025:(Sciurus richmondi)
967:Brazilian squirrel
643:2020BMCEE..20...77D
392:Leptosciurus otinus
240:Microsciurus alfari
1253:(Sciurus anomalus)
1225:(Sciurus vulgaris)
1209:(Sciurus oculatus)
1207:Peters's squirrel
1175:Japanese squirrel
1161:(Sciurus colliaei)
1159:Collie's squirrel
1033:(Sciurus sanborni)
999:Bolivian squirrel
969:(Sciurus aestuans)
299:, central Colombia
1585:
1584:
1557:Open Tree of Life
1380:Taxon identifiers
1371:
1370:
1333:Douglas squirrel
1231:Yucatan squirrel
1167:Deppe's squirrel
1127:Allen's squirrel
1107:Abert's squirrel
1089:(Sciurus griseus)
1009:(Sciurus ingrami)
1001:(Sciurus ignitus)
858:(Dwarf squirrels)
748:Ronald M. Nowak:
694:Mammalian Species
592:Zoologica Scripta
522:978-0-8018-8221-0
298:
284:
264:
248:
188:
187:
155:
1625:
1578:
1577:
1565:
1564:
1552:
1551:
1539:
1538:
1526:
1525:
1513:
1512:
1500:
1499:
1487:
1486:
1474:
1473:
1461:
1460:
1448:
1447:
1435:
1434:
1422:
1421:
1420:
1407:
1406:
1405:
1375:
1374:
1326:
1325:
1324:
1323:(Pine squirrels)
1267:
1247:
1169:(Sciurus deppei)
1129:(Sciurus alleni)
1123:
1109:(Sciurus aberti)
1103:
1083:
1055:
1015:Andean squirrel
963:
917:
912:
907:
861:
860:
859:
787:
780:
773:
764:
763:
736:
735:
733:
732:
718:
712:
711:
709:
681:
675:
674:
664:
654:
622:
616:
615:
587:
581:
580:
578:
576:
571:
541:
535:
534:
494:
425:"M." flaviventer
296:
279:
260:
243:
150:
56:
55:
35:
21:
20:
16:Genus of rodents
1633:
1632:
1628:
1627:
1626:
1624:
1623:
1622:
1588:
1587:
1586:
1581:
1573:
1568:
1560:
1555:
1547:
1542:
1534:
1529:
1521:
1516:
1508:
1503:
1495:
1490:
1482:
1477:
1469:
1464:
1456:
1451:
1443:
1438:
1430:
1425:
1416:
1415:
1410:
1401:
1400:
1395:
1382:
1372:
1367:
1356:
1322:
1321:
1320:
1319:
1309:
1286:
1260:
1240:
1201:(Sciurus niger)
1116:
1096:
1076:
1059:Fiery squirrel
1048:
956:
941:
925:Rheithrosciurus
918:
899:
857:
856:
855:
854:
844:
806:
791:
745:
740:
739:
730:
728:
720:
719:
715:
682:
678:
623:
619:
588:
584:
574:
572:
542:
538:
523:
495:
491:
486:
468:
452:
368:Andean squirrel
213:
197:dwarf squirrels
172:
149:
50:
17:
12:
11:
5:
1631:
1621:
1620:
1615:
1610:
1605:
1600:
1583:
1582:
1580:
1579:
1566:
1553:
1540:
1527:
1514:
1501:
1488:
1475:
1462:
1449:
1436:
1423:
1408:
1392:
1390:
1384:
1383:
1369:
1368:
1361:
1358:
1357:
1355:
1354:
1346:
1338:
1329:
1327:
1311:
1310:
1308:
1307:
1298:
1296:
1293:Syntheosciurus
1288:
1287:
1285:
1284:
1276:
1268:
1257:
1256:
1248:
1237:
1236:
1228:
1220:
1212:
1204:
1196:
1188:
1180:
1172:
1164:
1156:
1148:
1140:
1132:
1124:
1113:
1112:
1104:
1093:
1092:
1084:
1080:Hesperosciurus
1073:
1072:
1064:
1056:
1045:
1044:
1036:
1028:
1020:
1012:
1004:
996:
988:
980:
972:
964:
953:
951:
943:
942:
940:
939:
930:
928:
920:
919:
902:
900:
898:
897:
889:
881:
873:
864:
862:
846:
845:
843:
842:
836:
830:
824:
818:
811:
808:
807:
790:
789:
782:
775:
767:
761:
760:
744:
741:
738:
737:
713:
700:(935): 59–65.
676:
617:
598:(3): 211–219.
582:
536:
521:
488:
487:
485:
482:
467:
464:
451:
448:
447:
446:
445:
444:
440:Syntheosciurus
432:
427:
415:"Microsciurus"
411:
410:
409:
402:
395:
388:
381:
365:
349:
348:
347:
341:
301:
300:
286:
269:
250:
212:
209:
186:
185:
179:
178:
174:
173:
169:Sciurus alfari
164:
163:
157:
156:
142:
138:
137:
132:
128:
127:
122:
118:
117:
112:
108:
107:
102:
98:
97:
92:
88:
87:
82:
78:
77:
72:
68:
67:
62:
58:
57:
44:
43:
37:
36:
28:
27:
15:
9:
6:
4:
3:
2:
1630:
1619:
1616:
1614:
1611:
1609:
1606:
1604:
1603:Rodent genera
1601:
1599:
1596:
1595:
1593:
1576:
1571:
1567:
1563:
1558:
1554:
1550:
1545:
1541:
1537:
1532:
1528:
1524:
1519:
1515:
1511:
1506:
1502:
1498:
1493:
1489:
1485:
1480:
1476:
1472:
1467:
1463:
1459:
1454:
1450:
1446:
1441:
1437:
1433:
1428:
1424:
1419:
1413:
1409:
1404:
1398:
1394:
1393:
1391:
1389:
1385:
1381:
1376:
1366:
1365:
1359:
1353:
1352:
1347:
1345:
1344:
1339:
1337:
1336:
1331:
1330:
1328:
1318:
1317:
1312:
1306:
1305:
1300:
1299:
1297:
1295:
1294:
1289:
1283:
1282:
1277:
1275:
1274:
1269:
1266:
1265:
1259:
1258:
1255:
1254:
1249:
1246:
1245:
1239:
1238:
1235:
1234:
1229:
1227:
1226:
1223:Red squirrel
1221:
1219:
1218:
1213:
1211:
1210:
1205:
1203:
1202:
1199:Fox squirrel
1197:
1195:
1194:
1189:
1187:
1186:
1181:
1179:
1178:
1177:(Sciurus lis)
1173:
1171:
1170:
1165:
1163:
1162:
1157:
1155:
1154:
1149:
1147:
1146:
1141:
1139:
1138:
1133:
1131:
1130:
1125:
1122:
1121:
1115:
1114:
1111:
1110:
1105:
1102:
1101:
1095:
1094:
1091:
1090:
1085:
1082:
1081:
1075:
1074:
1071:
1070:
1065:
1063:
1062:
1057:
1054:
1053:
1047:
1046:
1043:
1042:
1037:
1035:
1034:
1029:
1027:
1026:
1021:
1019:
1018:
1013:
1011:
1010:
1005:
1003:
1002:
997:
995:
994:
989:
987:
986:
981:
979:
978:
973:
971:
970:
965:
962:
961:
960:Guerlinguetus
955:
954:
952:
950:
949:
944:
938:
937:
932:
931:
929:
927:
926:
921:
916:
911:
906:
896:
895:
890:
888:
887:
882:
880:
879:
874:
872:
871:
866:
865:
863:
853:
852:
847:
841:
837:
835:
831:
829:
825:
823:
819:
817:
813:
812:
809:
804:
800:
796:
788:
783:
781:
776:
774:
769:
768:
765:
759:
758:0-8018-5789-9
755:
751:
747:
746:
727:
723:
717:
708:
703:
699:
695:
691:
689:
680:
672:
668:
663:
658:
653:
648:
644:
640:
636:
632:
628:
621:
613:
609:
605:
601:
597:
593:
586:
570:
565:
561:
557:
556:
551:
549:
540:
532:
528:
524:
518:
514:
513:
508:
504:
502:
493:
489:
481:
479:
478:
473:
463:
461:
457:
442:
441:
436:
433:
431:
428:
426:
422:
419:
418:
417:
416:
412:
408:
407:
403:
401:
400:
396:
394:
393:
389:
387:
386:
382:
379:
378:
373:
372:L. pucheranii
369:
366:
364:
360:
357:
356:
355:
354:
350:
346:from Colombia
345:
342:
340:
336:
333:
332:
331:
330:
326:
325:
324:
322:
321:
316:
312:
308:
307:
294:
290:
287:
282:
277:
273:
270:
268:
263:
258:
254:
251:
246:
241:
237:
234:
233:
232:
230:
226:
222:
218:
208:
206:
202:
198:
194:
193:
184:
180:
175:
171:
170:
165:
162:
158:
153:
148:
147:
143:
140:
139:
136:
133:
130:
129:
126:
123:
120:
119:
116:
113:
110:
109:
106:
103:
100:
99:
96:
93:
90:
89:
86:
83:
80:
79:
76:
73:
70:
69:
66:
63:
60:
59:
54:
49:
45:
42:
38:
34:
29:
26:
22:
19:
1598:Microsciurus
1432:Microsciurus
1418:Microsciurus
1388:Microsciurus
1387:
1362:
1350:
1342:
1334:
1316:Tamiasciurus
1314:
1303:
1291:
1280:
1272:
1263:
1261:
1252:
1243:
1241:
1232:
1224:
1216:
1208:
1200:
1192:
1184:
1176:
1168:
1160:
1152:
1144:
1136:
1128:
1119:
1117:
1108:
1099:
1097:
1088:
1079:
1077:
1068:
1060:
1052:Hadrosciurus
1051:
1049:
1040:
1032:
1024:
1016:
1008:
1000:
992:
984:
976:
968:
959:
957:
946:
935:
923:
893:
885:
877:
869:
851:Microsciurus
850:
849:
840:Sciuromorpha
749:
743:Bibliography
729:. Retrieved
725:
716:
697:
693:
687:
679:
634:
630:
620:
595:
591:
585:
573:. Retrieved
559:
553:
547:
539:
511:
507:Wilson, D.E.
501:Microsciurus
500:
492:
475:
469:
460:Microsciurus
459:
453:
438:
434:
424:
414:
413:
404:
397:
390:
383:
375:
374:(moved from
371:
362:
353:Leptosciurus
352:
351:
343:
338:
329:Microsciurus
328:
327:
318:
311:Microsciurus
310:
304:
302:
292:
275:
267:Amazon basin
256:
239:
231:recognized:
225:polyphyletic
221:Microsciurus
220:
214:
196:
192:Microsciurus
191:
190:
189:
182:
167:
161:Type species
146:Microsciurus
145:
144:
40:
25:Microsciurus
24:
18:
1492:iNaturalist
1412:Wikispecies
797:(subfamily
450:Description
152:J. A. Allen
121:Subfamily:
1592:Categories
1264:Urosciurus
1100:Otosciurus
838:Suborder:
731:2020-05-15
575:12 January
484:References
363:L. mimulus
265:, western
262:Gray, 1867
1262:Subgenus
1242:Subgenus
1118:Subgenus
1098:Subgenus
1078:Subgenus
1050:Subgenus
958:Subgenus
814:Kingdom:
799:Sciurinae
795:Sciuridae
637:(1): 77.
339:M. alfari
306:Sciurinae
205:squirrels
183:See text
125:Sciurinae
115:Sciuridae
71:Kingdom:
65:Eukaryota
1536:12400042
1397:Wikidata
1364:Category
834:Rodentia
828:Mammalia
822:Chordata
820:Phylum:
816:Animalia
803:Sciurini
671:32590930
612:86487063
531:62265494
177:Species
135:Sciurini
111:Family:
105:Rodentia
95:Mammalia
85:Chordata
81:Phylum:
75:Animalia
61:Domain:
1562:1005034
1510:1327832
1484:2437359
1403:Q948353
1120:Sciurus
948:Sciurus
832:Order:
826:Class:
662:7320592
639:Bibcode
499:"Genus
377:Sciurus
229:species
215:Recent
141:Genus:
131:Tribe:
101:Order:
91:Class:
1523:632293
805:tribe)
756:
669:
659:
610:
529:
519:
309:split
283:, 1898
281:Thomas
247:, 1895
154:, 1895
1575:92537
1549:45476
1505:IRMNG
1497:46098
1471:41118
1458:63B8H
1445:73541
1244:Tenes
608:S2CID
505:. In
245:Allen
201:genus
199:is a
1544:NCBI
1518:ITIS
1479:GBIF
1440:BOLD
754:ISBN
667:PMID
577:2018
560:2008
527:OCLC
517:ISBN
317:and
1531:MSW
1466:EoL
1453:CoL
1427:ADW
702:doi
657:PMC
647:doi
600:doi
564:doi
217:DNA
203:of
195:or
1594::
1572::
1559::
1546::
1533::
1520::
1507::
1494::
1481::
1468::
1455::
1442::
1429::
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1399::
801:,
724:.
698:48
696:.
692:.
665:.
655:.
645:.
635:20
633:.
629:.
606:.
596:41
594:.
558:.
552:.
525:.
480:.
423:,
370:,
361:,
337:,
295:)
278:)
259:)
242:)
786:e
779:t
772:v
734:.
710:.
704::
686:"
673:.
649::
641::
614:.
602::
579:.
566::
550:"
546:"
533:.
503:"
443:)
380:)
291:(
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255:(
238:(
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