1 64 



MARSUP1ALIA 



and oblique. Tail more or less prehensile, thickly haired, and 

 the hairs on the upper surface longer than those on the lower, and 

 forming a crest. Muffle naked. Four species, viz. B. pcnicillato, 



B. cunicidus, B. gaimardi, B. lesiieuiri. 



Caloprymnus. 1 — Muffle naked, as in Bettongia, but the edge of the 

 hairy part less emarginate backwards in the middle line. Ears 

 short, rounded, and hairy. Auditory bullae much inflated, and of 

 large size. Nasals larger and wider behind than in the other 

 genera. Very long anterior palatine foramina. Limbs as in 

 Bettongia. Tail thin, cylindrical, evenly coated with short hair, 

 without trace of a crest. Skull broad and flat, with a remarkably 

 short and conical muzzle. The sole representative of this genus is 



C. campestris of South Australia, originally referred to Bettongia. 



jj m i 



Fig. 55. — Skull and Teeth of the Red-necked Wallaby (Macropus ruficoUis). i 1 , i-, i 3 , First, 

 second, and third upper incisors ; pm, fourth or posterior premolar (the penultimate or third 

 having been already shed); ml, m 2 , 7)13, m t t the four true molars. The last, not fully de- 

 veloped, is nearly concealed by the ascending ramus of the jaw. 



JEpyprymnus.- — Head short and broad. Auditory bullae not 

 inflated. No palatine foramina. Tarsus long. Muffle partially 

 hairy. Tail evenly hairy, not crested above. Molars oblong, less 

 distinctly quadritubercular, and not decreasing so much in size pos- 

 teriorly as in the other genera. Represented only by JE. rufescens. 



Remains of JE. rufescens occur in the Pleistocene cave-deposits 

 of New South Wales. 



Subfamily Maeropodinae. — This subfamily includes the largest 

 forms. The cutting edges of the upper incisors are nearly level, or 

 the first pair but slightly longer than the others (Fig. 55). The 

 canines are rudimentary and often wanting. The premolars are 

 usually not longer (from before backwards) than the true molars 



1 Thomas, Cat. Marsup. Brit. Mas. p. 114 (1888). 

 " Garrod, Proc. Zool. Soc. 1875, i». 59. 



