OF NEW SOUTH WALES. 361 



about 7'7 inches; longest finger, 1*1 in., its nail, 0-5 ; length of 

 head, 4 - 2 in. ; width across forehead, 2 inches; from snout to 

 centre of orbit 2"1 ; to base of ear, 3'7 ; ears, length, 2 in. x 1. 



This species is more closely allied to Petrogale penicillata (Gray} 

 than to any other that I know of; but may be easily distinguished 

 from that animal in being much smaller, in having a shorter tail, 

 more slender fore limbs, shorter fur, and by the absence of the side 

 stripe ;* the eai-s also are smaller and comparatively narrow; the 

 tail and feet are not clothed with the long harsh hairs so con- 

 spicuous in P. penicillata; nor is there any rufous on the under 

 surface. I do not find, either, any indication of a curled patch of 

 hair on the nape or shoulders of any specimens of Petrogale peni- 

 cillata that I have examined ; nor of the ridge of hair on the head. 



The present species was obtained on the Palm Island, on the 

 North-east coast, near Cleveland Bay, during the voyage of the 

 Ch evert, and was, I believe, the only specimen obtained ; sex, 

 female. 



Mr. Masters exhibited nests of Geobasileus reguloides, and 

 chrysorrhous, with specimens of the birds and eggs of each species. 

 The nests were dome-shaped, with the openings on one side, and 

 each with an additional open nest on the top. Mr. Masters stated 

 that Mr. Gould had noticed this peculiarity in one of the species 

 (chryssorhous), but without having any suspicion of the use for 

 which it was intended. He said that he was now in a position to 

 explain the use of this double nest. During this spring, a brood 

 had been actually brought out from one of the nests exhibited 

 (that of G. reguloides), at Mr. Shephei'd's nursery, at Chatsworth, 

 Rope Creek. The nest was in an orange tree, close to a shed 

 where the men were constantly at work, and it was generally 

 observed that during the process of incubation the male frequently 



* A specimen in the Australian Museum, which may be referable to this 

 species, has a short white patch running from behind the shoulder toward 

 the abdomen. 



