BY C. W. DE VIS, M.A. 



157 



lORTOISE. 



Elseja dentata, Or. 



LIZARDS. 



Monitor gouldii. The only 'guana' seen. 

 OBklura fracticolor, n.s. (Pg. IGOJ 



DESCRIPTION OF THE NEW SPECIES REFERRED TO IN 



THE ABOVE LIST. 



Onychogalea annulicauda, n.s. 



It Avas with no small interest that the only Macropod in the 

 collection was found to he a fourth species of the Nail-tailed 

 Wallabies (Onychogalea), undoubtedly a natural group. The 

 alliance characters of the three long known species, the nail- 

 like tip to the tail and the peculiar shoulder marking differenti- 

 ating them from all others, are present in our new acquaintance, 

 but in the one case exaggerated, the nail resembling the broad 

 head of an arrow, in the other partly effaced. The example of 

 the new species is unfoi-tunately but one and that a young female. 

 The adult male is pi'obably somewhat smaller than 0. lunulata. 



Fur moderately long and rather adpressed. Habit slender. 

 Head rather short with a convex profile. Ears moderately 

 pointed. Tail long, compressed, well clothed on the sides, with 

 a dorsal crest of stiffer hairs beo-innins: at about the fore thii'd and 

 increasing in length towards the tip on which it forms a brush 

 scarcely hiding the nail. Nail broad, spear-shaped, with a low 

 culmen towards the tip. Tarsi long, the fourth toe extending 

 much beyond the outer and inner ones. General colour fawn grey, 

 of a lighter and duller tint beneath. Fore part of the snout 

 nearly black : upper surface of head grizzled with black and 

 rufous, fading to buff on the eye brow\s and base of ears. 

 Behind the ear a small patch of very short dark hair: before 

 it a dark patch extending about half way along the face. Side 

 of face as the body but a little brighter. On the lower edge of 

 the face a faintly darker stripe to the angle of the mouth. 

 Behind the shoulders a faint trace of a curved pale stripe from 

 the direction of the nape. Ears grey on the outside, black at 

 the base on the inner, huffy towards the tip. A long faint pale 

 stripe on the haunch directed toward the rump. A broad pale 

 brown dorsal stripe from the occiput to the fore third of the 

 tail. Middle part of the tail light grey with broad dark grey 

 rings beginning faintly and distantly and becoming blacker and 



