} 
THE DORMOUSE-PHALANGERS, Tit 
normal proportions, their relative lengths being in the order 4, 
3, 5, 2, 1; claws shorter than in Pefaurus ; tail long, cylindrical, 
and bushy. Skull and teeth as in the genus last-named. 
The rare and little-known animal which is the sole re- 
presentative of this genus appears to be closely allied to the 
ancestral form from which the Flying Phalangers of the genus 
Petaurus have originated. 
I. LEADBEATER’S PHALANGER. GYMNOBELIDEUS LEADBEATERI. 
Gymnobelideus leadbeatert, McCoy, Ann. Mag. Nat. Hist., ser. 3, 
vol. xx., p. 287 (1867); Thomas, Cat. Marsup. Brit. Mus., 
p- *49 (1888). 
Characters—F ur soft and close. General colour brownish- 
grey ; under-parts yellowish ; a dark median streak along the 
nape and back ; a dark patch below the base of the ear, and 
fainter ones above and below the eye. FEars large, semi-ellip- 
tical, and nearly naked towards the tips ; toe-pads of fore feet 
large and wrinkled; hinder pads of both fore and hind feet 
_ large, low, and finely striated. Tail pale brown. Length of 
| head and body about 53 inches ; of tail 63 inches. 
—_— — 
Distribution.— Victoria, in the neighbourhood of the Bass river, 
THE DORMOUSE-PHALANGERS, GENUS DROMICIA. 
_ Dromicia, Gray, in Grey’s Australia, Appendix, vol. ii., p. 407 
(1841). 
Size small; ears large, thin, and almost naked; no parachute- 
| like expansion on the flanks ; toes normally proportioned, the 
relative lengths of those of the fore limb being 3, 4, 2, 5, 1; 
fore claws short and rudimentary, hind ones normal. Tail cy- 
lindrical, furry at the base, elsewhere scaly and clothed with 
_ Short hairs at the extreme tip roughened and naked inferiorly 
