Perameles pallescens Thomas, 1923

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: 375-376

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-FB6E-0F43-FF3B-A795FA2460CC

treatment provided by

Plazi

scientific name

Perameles pallescens Thomas, 1923
status

stat. nov.

Perameles pallescens Thomas, 1923  stat. nov.

Figs. 3View FIGURE 3, 5– 8View FIGURE 5View FIGURE 6View FIGURE 7View FIGURE 8

Perameles nasuta pallescens Thomas, 1923: 173 

Holotype. BMNH 22.12. 18.40, preserved skin and skeleton of adult male from Vine Creek, Ravenshoe, Queensland, Australia.

Topotype. QM JM 18575, preserved skin and skeleton of adult male from Mt Father Clancy, Ravenshoe, Queensland, Australia.

Other material examined. From the Museum of Natural History, London: BMNH 22.12. 18.41. From the Australian Museum: AM M 15841View Materials. From the Queensland Museum: QM J 6350, J 9421, J 10816View Materials, J 14308View Materials, JM 6561, JM 6683, JM 11389, JM 18575, JM 20172, JM 20173, JM 20174, JM 20239, JM 20240, JM 20241, JM 20242, JM 20243, JM 20244, JM 20245, JM 20246, JM 20247.

Diagnosis. Perameles pallescens  differs from P. nasuta  in having the following features: sagittal crest either very small or absent in males; smaller and narrower posterolingual cusp and shelf on P 3; StA larger and bladed, ascending the anterior flank of preparacrista on M 1; StB shorter than StC on M 1; metaconule smaller on M 1–3, with postmetaconule crista ending more lingually; StA more lingually positioned on M 3, resulting in a less concave buccal margin of the tooth; StB either absent or present as small conical cusp on M 4; protocone smaller on M 4 with poorly developed preprotocrista and postprotocrista; postparacrista not connected to metacone on M 4; a poorly developed paracristid on m 1, not connected to the protoconid; a smaller talonid on m 4.

P. pallescens  differs from P. gunnii  in having the following features: fewer bars in its pelage on its rump; less well-developed orbital rim; no ridges on the parietal; smaller lambdoidal sesamoid; smaller bullae; no accessory palatal fenestrae; smaller incisive and maxillopalatine fenestrae; shallower antorbital fossa; I 4–5 not premolar-like; obvious sexual dimorphism in canines; main cusp of P 3 less conical, and less well-developed lingual shelf; metaconule less well-developed on M 3; StA larger and bladed, ascending the anterior flank of preparacrista on M 1; StD connected to metaconule by a distinct crest on M 1; minute anterior cingulum present on M 2; less welldeveloped StB and protocone on M 4; a poorly developed paracristid on m 1, not connected to the protoconid; trigonid of m 4 much wider.

P. pallescens  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; lingual cusp and lingual shelf on P 3 slightly larger in size; StA larger and bladed, ascending the anterior flank of preparacrista on M 1; StD connected to metaconule by a distinct crest on M 1; minute anterior cingulum present on M 2; a poorly developed paracristid on m 1, not connected to the protoconid.

P. pallescens  differs from P. sobbei  having a poorly developed paracristid on m 1, not connected to the protoconid.

P. pallescens  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); a poorly developed paracristid on m 1, not connected to the protoconid.

P. pallescens  differs from P. allinghamensis  in a much smaller anterior cingulum (when present); and a buccally displaced StA.

Remarks. A new topotype is established here, to facilitate research and specimen identification in Australia (from a Queensland Museum specimen), considering that the holotype is located in the British Museum of Natural History in London, UK.

Habitat. Rainforest, wet sclerophyll forests, woodlands, swamps and farmlands ( Harrison 1962; Gordon et al. 1990; Williams & Marsh 1998; Bateman 2010; Kanowski et al. 2010 a, b)

Distribution. From the Townsville region to Cape York Peninsula, on the east coast of Queensland, Australia.

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Peramelemorphia

Family

Peramelidae

Genus

Perameles

Loc

Perameles pallescens Thomas, 1923

Travouillon, Kenny J. 2016
2016
Loc

Perameles nasuta pallescens

Thomas 1923: 173
1923