620:
184:
66:
630:
41:
625:
231:, it is similar to that species in appearance, but somewhat smaller. It has reddish-orange fur over most of the body, with a black line running down the centre of the back and paler, pinkish-buff underparts. There are also paler markings on the snout and around the eyes. The tail is long and thin; the fur on the tail is relatively short, rather than bushy, and is tipped with white but otherwise black above and paler below.
254:
Very little is known about the behaviour or biology of the species, beyond the fact that it lives in trees and appears to be diurnal. The absence of reliable information, even on the exact area that it inhabits, meant that, as of 2016, it was not possible to assess its population, conservation status
226:
The
Santander dwarf squirrel is a small tree squirrel, measuring around 15 centimetres (5.9 in) from nose to rump, with a tail about the same length again. Females are, on average, slightly larger than males. Originally described as a subspecies of the
251:. This region varies from 100 to 3,800 metres (330 to 12,470 ft) in elevation and is heavily forested, with oak dominating in the higher altitudes and more varied humid forest in the lowlands.
689:
243:
in
Colombia but has since also been reported from further west. It is, however, only known definitively from a patch of land between the middle section of the
239:
The precise range of the
Santander dwarf squirrel is unclear, since it is often confused with the Andean squirrel. It was originally described from
1193:
1299:
1232:
499:
1167:
1206:
1250:
1132:
1211:
477:
1324:
1319:
1309:
346:
332:
582:
492:
248:
1314:
1016:
1007:
993:
985:
1245:
65:
619:
485:
1055:
897:
697:
309:
1198:
1094:
737:
648:
639:
598:
1304:
1276:
1063:
865:
857:
849:
801:
745:
590:
160:
781:
507:
1224:
1154:
921:
905:
873:
240:
8:
929:
881:
841:
821:
705:
30:
183:
1078:
965:
753:
681:
420:
60:
1271:
1141:
889:
713:
352:
342:
286:
1146:
1047:
945:
463:
383:
304:
1258:
729:
721:
244:
228:
1237:
773:
256:
45:
467:
1293:
1219:
1117:
1030:
629:
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208:
50:
388:
371:
356:
937:
913:
565:
554:
137:
1263:
1180:
1126:
424:
404:
1172:
341:(3rd ed.). The Johns Hopkins University Press. pp. 754–818.
1185:
513:
77:
1088:
1111:
624:
536:
517:
509:
215:
211:
127:
97:
662:
338:
Mammal
Species of the World: a taxonomic and geographic reference
1159:
548:
542:
530:
405:"Primitiæ mastozoologicæ Colombianae - I. Status taxonomico de
336:
117:
107:
87:
280:
278:
276:
372:"Patterns of body and tail length and body mass in Sciuridae"
255:
or any threats it might face, and it is therefore listed as
273:
260:
450:
Hale, S.L.; Greer, V.L.; et al. (October 2018). "
284:
330:
402:
1291:
333:"Family Sciuridae: Microsciurus santanderensis"
310:10.2305/IUCN.UK.2019-1.RLTS.T13412A22255091.en
493:
331:Thorington, R.W. Jr.; Hoffmann, R.S. (2005).
396:
234:
500:
486:
445:
443:
441:
363:
182:
39:
449:
387:
324:
308:
403:Hernandez-Camacho, J. (September 1960).
438:
369:
335:. In Wilson, D.E.; Reeder, D.M (eds.).
1292:
1093:
1092:
481:
1300:IUCN Red List data deficient species
296:IUCN Red List of Threatened Species
13:
14:
1336:
407:Sciurus pucheranii santanderensis
628:
623:
618:
583:Central American dwarf squirrel
285:Koprowski, J.; Roth, L. (2019).
64:
247:and the western slopes of the
221:
1:
994:Southern Amazon red squirrel
986:Northern Amazon red squirrel
609:(Microsciurus santanderensis)
266:
7:
1133:Microsciurus santanderensis
1103:Microsciurus santanderensis
452:Microsciurus santanderensis
370:Hayssen, V. (August 2008).
289:Microsciurus santanderensis
204:Microsciurus santanderensis
170:Microsciurus santanderensis
10:
1341:
1056:Southwestern red squirrel
1017:Bangs's mountain squirrel
690:South Yungas red squirrel
651:(Rheithrosciurus macrotis)
593:(Microsciurus flaviventer)
1325:Mammals described in 1957
1320:Endemic fauna of Colombia
1101:
1075:
1066:(Tamiasciurus hudsonicus)
1028:
1005:
898:Calabrian black squirrel
722:Atlantic Forest squirrel
698:Yellow-throated squirrel
660:
637:
616:
607:Santander dwarf squirrel
563:
525:
508:Extant species of family
190:
181:
176:(Hernandez-Camacho, 1957)
166:
159:
61:Scientific classification
59:
37:
28:
24:Santander dwarf squirrel
23:
1310:Rodents of South America
1050:(Tamiasciurus douglasii)
1019:(Syntheosciurus brochus)
454:(Rodentia: Sciuridae)".
235:Distribution and biology
199:Santander dwarf squirrel
1058:(Tamiasciurus fremonti)
932:(Sciurus variegatoides)
649:Tufted ground squirrel
599:Western dwarf squirrel
468:10.1093/mspecies/sey017
389:10.1644/07-MAMM-A-217.1
1064:American red squirrel
948:(Sciurus yucatanensis)
908:(Sciurus nayaritensis)
900:(Sciurus meridionalis)
868:(Sciurus carolinensis)
866:Eastern gray squirrel
858:Mexican gray squirrel
850:Arizona gray squirrel
802:Western gray squirrel
700:(Sciurus gilvigularis)
601:(Microsciurus mimulus)
591:Amazon dwarf squirrel
152:M. santanderensis
988:(Sciurus igniventris)
906:Mexican fox squirrel
860:(Sciurus aureogaster)
852:(Sciurus arizonensis)
708:(Sciurus granatensis)
692:(Sciurus argentinius)
585:(Microsciurus alfari)
303:: e.T13412A22255091.
930:Variegated squirrel
756:(Sciurus stramineus)
738:Richmond's squirrel
732:(Sciurus pucheranii)
706:Red-tailed squirrel
376:Journal of Mammalogy
241:Santander Department
1315:Mammals of Colombia
996:(Sciurus spadiceus)
966:Caucasian squirrel
784:(Sciurus pyrrhinus)
782:JunĂn red squirrel
776:(Sciurus flammifer)
754:Guayaquil squirrel
746:Sanborn's squirrel
740:(Sciurus richmondi)
682:Brazilian squirrel
249:Cordillera Oriental
31:Conservation status
16:Species of squirrel
968:(Sciurus anomalus)
940:(Sciurus vulgaris)
924:(Sciurus oculatus)
922:Peters's squirrel
890:Japanese squirrel
876:(Sciurus colliaei)
874:Collie's squirrel
748:(Sciurus sanborni)
714:Bolivian squirrel
684:(Sciurus aestuans)
1287:
1286:
1272:Open Tree of Life
1095:Taxon identifiers
1086:
1085:
1048:Douglas squirrel
946:Yucatan squirrel
882:Deppe's squirrel
842:Allen's squirrel
822:Abert's squirrel
804:(Sciurus griseus)
724:(Sciurus ingrami)
716:(Sciurus ignitus)
573:(Dwarf squirrels)
456:Mammalian Species
195:
194:
54:
1332:
1280:
1279:
1267:
1266:
1254:
1253:
1241:
1240:
1228:
1227:
1215:
1214:
1202:
1201:
1189:
1188:
1176:
1175:
1163:
1162:
1150:
1149:
1137:
1136:
1135:
1122:
1121:
1120:
1090:
1089:
1041:
1040:
1039:
1038:(Pine squirrels)
982:
962:
884:(Sciurus deppei)
844:(Sciurus alleni)
838:
824:(Sciurus aberti)
818:
798:
770:
730:Andean squirrel
678:
632:
627:
622:
576:
575:
574:
502:
495:
488:
479:
478:
472:
471:
462:(970): 166–169.
447:
436:
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431:
400:
394:
393:
391:
367:
361:
360:
328:
322:
321:
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186:
172:
69:
68:
48:
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21:
20:
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1283:
1275:
1270:
1262:
1259:Observation.org
1257:
1249:
1244:
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1231:
1223:
1218:
1210:
1205:
1197:
1192:
1184:
1179:
1171:
1166:
1158:
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1140:
1131:
1130:
1125:
1116:
1115:
1110:
1097:
1087:
1082:
1071:
1037:
1036:
1035:
1034:
1024:
1001:
975:
955:
916:(Sciurus niger)
831:
811:
791:
774:Fiery squirrel
763:
671:
656:
640:Rheithrosciurus
633:
614:
572:
571:
570:
569:
559:
521:
506:
476:
475:
448:
439:
429:
427:
419:(38): 359–368.
401:
397:
368:
364:
349:
329:
325:
315:
313:
283:
274:
269:
245:Magdalena River
237:
229:Andean squirrel
224:
177:
174:
168:
155:
63:
55:
44:
40:
33:
17:
12:
11:
5:
1338:
1328:
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1322:
1317:
1312:
1307:
1302:
1285:
1284:
1282:
1281:
1268:
1255:
1242:
1229:
1216:
1203:
1190:
1177:
1164:
1151:
1138:
1123:
1107:
1105:
1099:
1098:
1084:
1083:
1076:
1073:
1072:
1070:
1069:
1061:
1053:
1044:
1042:
1026:
1025:
1023:
1022:
1013:
1011:
1008:Syntheosciurus
1003:
1002:
1000:
999:
991:
983:
972:
971:
963:
952:
951:
943:
935:
927:
919:
911:
903:
895:
887:
879:
871:
863:
855:
847:
839:
828:
827:
819:
808:
807:
799:
795:Hesperosciurus
788:
787:
779:
771:
760:
759:
751:
743:
735:
727:
719:
711:
703:
695:
687:
679:
668:
666:
658:
657:
655:
654:
645:
643:
635:
634:
617:
615:
613:
612:
604:
596:
588:
579:
577:
561:
560:
558:
557:
551:
545:
539:
533:
526:
523:
522:
505:
504:
497:
490:
482:
474:
473:
437:
395:
382:(4): 852–873.
362:
347:
323:
271:
270:
268:
265:
257:data deficient
236:
233:
223:
220:
193:
192:
188:
187:
179:
178:
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163:
157:
156:
149:
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135:
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125:
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115:
111:
110:
105:
101:
100:
95:
91:
90:
85:
81:
80:
75:
71:
70:
57:
56:
46:Data Deficient
38:
35:
34:
29:
26:
25:
15:
9:
6:
4:
3:
2:
1337:
1326:
1323:
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1234:
1230:
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1208:
1204:
1200:
1195:
1191:
1187:
1182:
1178:
1174:
1169:
1165:
1161:
1156:
1152:
1148:
1143:
1139:
1134:
1128:
1124:
1119:
1113:
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1106:
1104:
1100:
1096:
1091:
1081:
1080:
1074:
1068:
1067:
1062:
1060:
1059:
1054:
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1051:
1046:
1045:
1043:
1033:
1032:
1027:
1021:
1020:
1015:
1014:
1012:
1010:
1009:
1004:
998:
997:
992:
990:
989:
984:
981:
980:
974:
973:
970:
969:
964:
961:
960:
954:
953:
950:
949:
944:
942:
941:
938:Red squirrel
936:
934:
933:
928:
926:
925:
920:
918:
917:
914:Fox squirrel
912:
910:
909:
904:
902:
901:
896:
894:
893:
892:(Sciurus lis)
888:
886:
885:
880:
878:
877:
872:
870:
869:
864:
862:
861:
856:
854:
853:
848:
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845:
840:
837:
836:
830:
829:
826:
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816:
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800:
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772:
769:
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717:
712:
710:
709:
704:
702:
701:
696:
694:
693:
688:
686:
685:
680:
677:
676:
675:Guerlinguetus
670:
669:
667:
665:
664:
659:
653:
652:
647:
646:
644:
642:
641:
636:
631:
626:
621:
611:
610:
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603:
602:
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595:
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586:
581:
580:
578:
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556:
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366:
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354:
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348:0-8018-8221-4
344:
340:
339:
334:
327:
311:
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279:
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264:
262:
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252:
250:
246:
242:
232:
230:
219:
217:
213:
210:
209:tree squirrel
207:) is a small
206:
205:
200:
189:
185:
180:
173:
171:
165:
162:
161:Binomial name
158:
154:
153:
148:
145:
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136:
133:
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129:
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79:
76:
73:
72:
67:
62:
58:
52:
47:
36:
32:
27:
22:
19:
1305:Microsciurus
1102:
1077:
1065:
1057:
1049:
1031:Tamiasciurus
1029:
1018:
1006:
995:
987:
978:
976:
967:
958:
956:
947:
939:
931:
923:
915:
907:
899:
891:
883:
875:
867:
859:
851:
843:
834:
832:
823:
814:
812:
803:
794:
792:
783:
775:
767:Hadrosciurus
766:
764:
755:
747:
739:
731:
723:
715:
707:
699:
691:
683:
674:
672:
661:
650:
638:
608:
606:
600:
592:
584:
566:Microsciurus
564:
555:Sciuromorpha
459:
455:
451:
428:. Retrieved
416:
412:
406:
398:
379:
375:
365:
337:
326:
314:. Retrieved
300:
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288:
253:
238:
225:
203:
202:
198:
196:
169:
167:
151:
150:
139:Microsciurus
138:
18:
1181:iNaturalist
1127:Wikispecies
512:(subfamily
316:14 November
222:Description
1294:Categories
979:Urosciurus
815:Otosciurus
553:Suborder:
267:References
977:Subgenus
957:Subgenus
833:Subgenus
813:Subgenus
793:Subgenus
765:Subgenus
673:Subgenus
529:Kingdom:
514:Sciurinae
510:Sciuridae
146:Species:
128:Sciuridae
84:Kingdom:
78:Eukaryota
1251:12400063
1199:10238895
1112:Wikidata
1079:Category
549:Rodentia
543:Mammalia
537:Chordata
535:Phylum:
531:Animalia
518:Sciurini
430:11 April
425:23641125
413:Caldasia
357:26158608
216:Colombia
124:Family:
118:Rodentia
108:Mammalia
98:Chordata
94:Phylum:
88:Animalia
74:Domain:
51:IUCN 3.1
1277:3608996
1238:1001672
1173:2437362
1160:1037730
1118:Q765313
835:Sciurus
663:Sciurus
547:Order:
541:Class:
259:by the
212:endemic
134:Genus:
114:Order:
104:Class:
49: (
1212:632390
520:tribe)
423:
355:
345:
191:range
1264:84955
1225:13412
1194:IRMNG
1186:46102
1147:435RR
959:Tenes
421:JSTOR
1220:IUCN
1207:ITIS
1168:GBIF
432:2021
353:OCLC
343:ISBN
318:2021
301:2019
261:IUCN
197:The
1246:MSW
1233:MDD
1155:EoL
1142:CoL
464:doi
384:doi
305:doi
214:to
1296::
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1235::
1222::
1209::
1196::
1183::
1170::
1157::
1144::
1129::
1114::
516:,
460:50
458:.
440:^
415:.
411:.
380:89
378:.
374:.
351:.
299:.
293:.
275:^
263:.
218:.
501:e
494:t
487:v
470:.
466::
434:.
417:8
409:"
392:.
386::
359:.
320:.
307::
291:"
287:"
201:(
53:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
