77:
529:
52:
541:
313:
hairs on the chin and throat. The ears are sparsely covered with rusty brown hairs. The tail is a uniform dark brown with a scattering of hairs and no tuft at the tip. The upper surfaces of the feet have dark ochre fur and there are tufts of hair by the nails. The first and fifth digits of the hind feet are much shorter than the other three.
517:
312:
The northern grass mouse is a medium-sized species. The fur on the upper parts of the body is a dark chestnut grizzled with black. The underparts are paler, with the hairs having dark bases and yellowish or pale grey tips. There is a bare ring of skin round the eye and there are usually grey-tipped
330:
The northern grass mouse is active both day and night. The diet consists of green plant material and seeds. Females reach sexual maturity at 2.7 months and breeding takes place throughout the year with a peak in May and June. The average litter size is five and there are three or four litters per
321:
The northern grass mouse is found in
Trinidad and Tobago and in the mountains of northern and southern Venezuela, eastern Colombia and northern Brazil. Its altitudinal range is from 240 to 2,232 m (790 to 7,320 ft). It is a terrestrial species usually found in evergreen and deciduous
343:
and that further research will subdivide the species as now known into several new species. In that event, the conservation status of some populations may be threatened, but for the time being, the
344:
788:
816:
762:
630:
836:
775:
656:
493:
451:
851:
841:
682:
700:
443:
780:
661:
846:
831:
695:
604:
429:
826:
507:
793:
76:
557:
322:
forests but sometimes in savannah. It favours moist areas near streams with rocks and scrubby vegetation.
609:
348:
181:
595:
301:
41:
408:
404:
207:
71:
339:
The northern grass mouse has a wide range but is generally uncommon. It is likely that it is a
821:
749:
617:
489:
483:
457:
447:
437:
708:
528:
340:
674:
545:
533:
521:
810:
669:
433:
385:
148:
61:
56:
754:
740:
622:
687:
643:
589:
375:
Gómez-Laverde, M.; Anderson, R.P.; Aguillera, M.; Rivas, B.; Emmons, L. (2008).
198:
540:
17:
425:
285:
138:
580:
461:
376:
297:
88:
713:
734:
574:
293:
158:
108:
767:
635:
648:
289:
281:
128:
118:
98:
551:
516:
439:
Mammal
Species of the World: A Taxonomic and Geographic Reference
555:
505:
724:
564:
345:International Union for Conservation of Nature
8:
488:. University of Chicago Press. p. 245.
485:Mammals of South America, Volume 2: Rodents
552:
50:
31:
477:
475:
473:
471:
512:
360:
420:
418:
370:
368:
366:
364:
347:has assessed this mouse as being of "
7:
817:IUCN Red List least concern species
386:IUCN Red List of Threatened Species
25:
539:
527:
515:
75:
837:Mammals of Trinidad and Tobago
444:Johns Hopkins University Press
1:
868:
428:; Carleton, M. D. (2005).
852:Mammals described in 1897
482:Patton, James L. (2015).
213:
206:
187:
180:
72:Scientific classification
70:
48:
39:
34:
842:Mammals of the Caribbean
436:; Reeder, D. M. (eds.).
430:"Superfamily Muroidea"
35:Northern grass mouse
847:Mammals of Venezuela
268:northern grass mouse
201:& Chapman, 1897)
832:Mammals of Colombia
302:Trinidad and Tobago
257:(J. A. Allen, 1899)
233:(J. A. Allen, 1904)
225:(J. A. Allen, 1913)
42:Conservation status
407:}}: old-form url (
280:) is a species of
827:Rodents of Brazil
804:
803:
558:Taxon identifiers
495:978-0-226-16957-6
453:978-0-8018-8221-0
288:. It is found in
264:
263:
258:
250:
242:
234:
226:
65:
27:Species of rodent
16:(Redirected from
859:
797:
796:
784:
783:
771:
770:
758:
757:
745:
744:
743:
717:
716:
704:
703:
691:
690:
678:
677:
665:
664:
652:
651:
639:
638:
626:
625:
613:
612:
600:
599:
598:
585:
584:
583:
553:
544:
543:
532:
531:
520:
519:
511:
500:
499:
479:
466:
465:
446:. p. 1131.
442:(3rd ed.).
422:
413:
412:
401:
399:
397:
372:
272:northern akodont
256:
254:N. venezuelensis
248:
240:
232:
224:
193:
80:
79:
59:
54:
53:
32:
21:
867:
866:
862:
861:
860:
858:
857:
856:
807:
806:
805:
800:
792:
787:
779:
774:
766:
761:
753:
748:
739:
738:
733:
720:
712:
709:Observation.org
707:
699:
694:
686:
681:
673:
668:
660:
655:
647:
642:
634:
629:
621:
616:
608:
603:
596:Necromys urichi
594:
593:
588:
579:
578:
573:
566:Necromys urichi
560:
550:
538:
526:
514:
506:
504:
503:
496:
481:
480:
469:
454:
424:
423:
416:
402:
395:
393:
379:Necromys urichi
374:
373:
362:
357:
341:species complex
337:
328:
319:
310:
277:Necromys urichi
249:(Goodwin, 1962)
202:
195:
191:Necromys urichi
189:
176:
74:
66:
55:
51:
44:
28:
23:
22:
18:Necromys urichi
15:
12:
11:
5:
865:
863:
855:
854:
849:
844:
839:
834:
829:
824:
819:
809:
808:
802:
801:
799:
798:
785:
772:
759:
746:
730:
728:
722:
721:
719:
718:
705:
692:
679:
666:
653:
640:
627:
614:
601:
586:
570:
568:
562:
561:
556:
549:
548:
536:
524:
502:
501:
494:
467:
452:
414:
359:
358:
356:
353:
336:
333:
327:
324:
318:
315:
309:
306:
284:in the family
262:
261:
260:
259:
251:
243:
235:
227:
219:
211:
210:
204:
203:
196:
185:
184:
178:
177:
173:N. urichi
170:
168:
164:
163:
156:
152:
151:
146:
142:
141:
136:
132:
131:
126:
122:
121:
116:
112:
111:
106:
102:
101:
96:
92:
91:
86:
82:
81:
68:
67:
49:
46:
45:
40:
37:
36:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
864:
853:
850:
848:
845:
843:
840:
838:
835:
833:
830:
828:
825:
823:
820:
818:
815:
814:
812:
795:
790:
786:
782:
777:
773:
769:
764:
760:
756:
751:
747:
742:
736:
732:
731:
729:
727:
726:Akodon urichi
723:
715:
710:
706:
702:
697:
693:
689:
684:
680:
676:
671:
667:
663:
658:
654:
650:
645:
641:
637:
632:
628:
624:
619:
615:
611:
606:
602:
597:
591:
587:
582:
576:
572:
571:
569:
567:
563:
559:
554:
547:
542:
537:
535:
530:
525:
523:
518:
513:
509:
497:
491:
487:
486:
478:
476:
474:
472:
468:
463:
459:
455:
449:
445:
441:
440:
435:
434:Wilson, D. E.
431:
427:
426:Musser, G. G.
421:
419:
415:
410:
406:
392:
388:
387:
382:
380:
371:
369:
367:
365:
361:
354:
352:
350:
349:least concern
346:
342:
334:
332:
325:
323:
316:
314:
307:
305:
303:
299:
295:
291:
287:
283:
279:
278:
273:
269:
255:
252:
247:
246:N. tobagensis
244:
239:
236:
231:
230:N. meridensis
228:
223:
220:
218:
217:Akodon urichi
215:
214:
212:
209:
205:
200:
194:
192:
186:
183:
182:Binomial name
179:
175:
174:
169:
166:
165:
162:
161:
157:
154:
153:
150:
149:Sigmodontinae
147:
144:
143:
140:
137:
134:
133:
130:
127:
124:
123:
120:
117:
114:
113:
110:
107:
104:
103:
100:
97:
94:
93:
90:
87:
84:
83:
78:
73:
69:
63:
58:
57:Least Concern
47:
43:
38:
33:
30:
19:
725:
565:
484:
438:
394:. Retrieved
390:
384:
378:
338:
329:
320:
317:Distribution
311:
276:
275:
271:
267:
265:
253:
245:
241:(Tate, 1939)
238:N. saturatus
237:
229:
221:
216:
190:
188:
172:
171:
159:
29:
644:iNaturalist
590:Wikispecies
308:Description
222:N. chapmani
199:J. A. Allen
145:Subfamily:
811:Categories
741:Q109646845
355:References
286:Cricetidae
139:Cricetidae
405:cite iucn
298:Venezuela
167:Species:
95:Kingdom:
89:Eukaryota
822:Necromys
735:Wikidata
701:13000725
575:Wikidata
462:62265494
294:Colombia
208:Synonyms
160:Necromys
135:Family:
129:Rodentia
119:Mammalia
109:Chordata
105:Phylum:
99:Animalia
85:Domain:
62:IUCN 3.1
768:2437894
688:1002452
636:4265135
581:Q309329
546:Biology
534:Animals
522:Mammals
508:Portals
326:Ecology
155:Genus:
125:Order:
115:Class:
60: (
781:633070
714:200928
662:970692
610:215284
492:
460:
450:
396:3 June
335:Status
331:year.
290:Brazil
282:rodent
794:29102
755:65V7L
649:74745
623:45ZS7
432:. In
270:, or
789:NCBI
776:ITIS
763:GBIF
670:IUCN
657:ITIS
631:GBIF
605:BOLD
490:ISBN
458:OCLC
448:ISBN
409:help
398:2016
391:2008
300:and
274:, (
266:The
750:CoL
696:MSW
683:MDD
675:765
618:CoL
351:".
813::
791::
778::
765::
752::
737::
711::
698::
685::
672::
659::
646::
633::
620::
607::
592::
577::
470:^
456:.
417:^
403:{{
389:.
383:.
363:^
304:.
296:,
292:,
510::
498:.
464:.
411:)
400:.
381:"
377:"
197:(
64:)
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
