Perameles nasuta Geoffroy, 1804

Travouillon, Kenny J., 2016, Investigating dental variation in Perameles nasuta Geoffroy, 1804, with morphological evidence to raise P. nasuta pallescens Thomas, 1923 to species rank, Zootaxa 4114 (4), pp. 351-392: 374-375

publication ID

http://doi.org/10.11646/zootaxa.4114.4.1

publication LSID

lsid:zoobank.org:pub:FBE39B58-678B-495F-8050-E24F89F102BE

persistent identifier

http://treatment.plazi.org/id/1B695A18-FB61-0F42-FF3B-A4AEFAB66151

treatment provided by

Plazi

scientific name

Perameles nasuta Geoffroy, 1804
status

 

Perameles nasuta Geoffroy, 1804 

Figs. 4–8View FIGURE 4View FIGURE 5View FIGURE 6View FIGURE 7View FIGURE 8

Perameles nasuta nasuta Geoffroy, 1804 

Holotype. MNHP 327, Paris, mounted skin, type locality unknown (holotype not examined in this study).

Material examined. From the Queensland Museum: QM J 4816, J 4902, J 4903, J 4904, J 4905, J 4906, J 5065, J 5856, J 7149, J 8953, J 9843, J 10056View Materials, J 10057View Materials, J 10058View Materials, J 10730View Materials, J 11091View Materials, J 11210View Materials, J 11235View Materials, J 11236View Materials, J 22868View Materials, JM 410, JM 651, JM 790, JM 5400, JM 8757, JM 9252, JM 9757, JM 10509, JM 10719, JM 11560, JM 14370, JM 14419, JM 14584, JM 15459, JM 16435, JM 19323, JM 20175, JM 20176, JM 20177, JM 20178, JM 20248, JM 20249, JM 20250, JM 20251, JM 20252, JM 20253, JM 20254, JM 20255, JM 20256, JM 20257,JM 20258. From the Australian Museum: AM M 4274, M 6882, M 8310, M 8403, M 14019View Materials, M 21143View Materials, M 24648View Materials, M 25498View Materials.

Diagnosis. Perameles nasuta  differs from P. pallescens  in the following features: sagittal crest usually present in males; taller and wider posterolingual cusp and shelf on P 3; StA smaller and does not ascend anterior flank of preparacrista on M 1; StB taller than StC or fused with StC on M 1; metaconule larger on M 1–3, with postmetaconule crista ending further buccally; StA more buccally displaced on M 3, resulting in more concave buccal margin of the tooth; StB present as medium to large sized conical cusp on M 4; protocone larger on M 4 with well-developed preprotocrista and postprotocrista; postparacrista usually connected to metacone on M 4; a welldeveloped paracristid on m 1; a larger talonid on m 4.

P. na s u t a differs from P. gunnii  in the following features: fewer bars in its pelage on its rump; less welldeveloped orbital rim; no ridges on the parietal; smaller lambdoidal sesamoid; smaller bullae; no accessory palatal or palatine fenestrae; smaller incisive and maxillopalatine fenestrae; shallower antorbital fossa; I 4–5 not premolarlike; obvious sexual dimorphism in canines; main cusp of P 3 less conical, and less well-developed lingual shelf; postmetaconule crista ends more buccally on all molars; StD connected to metaconule by a distinct crest on M 1 (except in specimens from MEQ); minute anterior cingulum present on M 2; trigonid of m 4 much wider.

P. na s u t a differs from P. bougainville  in the following features: larger in overall size; fewer bars in its pelage on its rump; no accessory palatal or palatine fenestrae; smaller maxillopalatine fenestrae; taller postglenoid process; shallower antorbital fossa; larger lingual cusp on P 3 and better developed lingual shelf; postmetaconule crista ends more buccally on all molars; StD connected to metaconule by a distinct crest on M 1 (except in specimens from MEQ); minute anterior cingulum present on M 2.

P. na s u t a differs from P. sobbei  in the following features: StA on M 3 more anterobuccally positioned; metaconule on M 3 better developed.

P. nasuta  differs from P. bowensis  in the following features: all dental dimensions larger; main cusp of P 3 less conical and narrower; anterior cingulum on M 2 much smaller; anterior cingulum on M 3 much smaller (if present); metaconule better developed on M 3.

P. nasuta  differs from P. allinghamensis  in having more developed metaconule and posterior cingulum; a much smaller anterior cingulum (when present); and a buccally displaced StA.

Remarks. Specimens from MEQ are unique amongst specimens of Perameles nasuta nasuta  in having no connection between StD and the metastyle on M 1. This feature is also seen in P. gunnii  . This suggests that the MEQ population may be distinct and represent a separate subspecies, though it is not formally described as a separate taxon here, pending genetic analyses to support their separation.

Habitat. Heath and forest habitats close to grassy/open feeding sites, in rainfall over 750 millimetres, and elevation below 1000 metres ( Chambers & Dickman 2002; Van Dyck et al. 2013).

Distribution. From the Mackay region, to the south of Victoria along the east Coast of Australia.

MNHP

Princeton University

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Peramelemorphia

Family

Peramelidae

Genus

Perameles

Loc

Perameles nasuta Geoffroy, 1804

Travouillon, Kenny J. 2016
2016
Loc

Perameles nasuta nasuta

Geoffroy 1804
1804