Table 1.

Description of morphological characters. All characters were measured in millimetres except ACP, measured in degrees.

	external characters
HB	head and body length: distance from the tip of the nose to the base of the tail
T	length of tail: distance from the base of the tail to its tip without terminal hairs
E	ear length: distance from the basal notch to the tip without terminal hairs
Vib	length of vibrissae: length of the longest mystacial vibrissa from the base to the tip in its natural position
HF	length of hind foot: distance from the heel to the tip of the longest digit without claw
FF	length of forefoot: distance from the notch between the radius and carpus to the tip of the longest digit without claw, measured parallel to the manual axis
UM	length of forefoot claw: distance from the base of the longest claw on its inferior surface to the tip

	craniodental characters
CBL	condylobasal length: distance from the border between the anterior surface of the upper incisors and intermaxilla to the posterior surfaces of the occipital condyles measured parallel to the cranial axis
LR	length of rostrum: distance from the tip of the nasal bones to the anterior edge of the zygomatic arch, measured level with the nasals and parallel to the cranial axis
ZB	zygomatic breadth: greatest breadth across the zygomatic arches
BIT	breadth across incisor tips: distance across the tips of the incisors
LMT	alveolar length of maxillary tooth row: distance from the anterior edge of the alveolus of the maxillary tooth row's first tooth to the posterior edge of the alveolus of the third molar
HMC	height of mandibular corpus: distance from the anteriodorsal part of the first molar to the ventral surface of the mandibular corpus, measured perpendicular to the masticatory surface of the mandibular tooth row
ACP	angle of condylar process: angle between the tangent to the ventral surface of the mandibular corpus parallel to the masticatory surface of the mandibular tooth row and the line connecting the tangent's contact point with the axis of the mandibular condyle