220 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



Erismatura australis — some of these rare birds, at pi'esent the 



rarest of all our Australian ducks, have lately been obtained 



for the sum of 5s. per pair. 



Since writing the above, the following species have occurred 



from N. S. Wales : — Dendrocygna vagans, and Anseranus melano- 



lenoa. 



Mr. Macleay also informs me that one of his taxidermists 

 obtained a fine pair of Blue-billed Ducks, Erismatura australis, 

 which had been sent from the Melbourne district among other 

 game birds, and purchased of a poulterer in Sydney. 



Erismatura australis was formerly supposed to be confined to 

 the Lakes and Swamps of West Australia, but several pairs have 

 been lately obtained in the Melbourne markets. 



On some new forms of Arachnulse, by H. H. B. Bradley, Esq. 

 Salticus Macleayanus, n.s.— Plate II. 



Adult. — -Total length, 3 lines ; to extremity of falces, 4§ lines. 



Cephalothorax elongate ; capul divided from the thorax by a 

 strong constriction, leaving the former nearly square ; thorax not 

 as high as caput, oval, highest in front, arched and marked by 

 furrows corresponding to the legs ; colour black, with minute 

 white shining hairs, particularly in the centre of the cephalothorax, 

 thus giving the appearance of a longitudinal white band. 



Eyes in three rows ; centre anterior eyes very large ; latei'al 

 anterior eyes and eyes of third line about equal in size (half as 

 large as central anterior eyes), and placed at the four corners of 

 the square ; eyes of the middle row, excessively minute, are as 

 near to the posterior as to the anterior lateral eyes. 



Legs rather long, slender, with a few minute white hairs ; rela- 

 tive length 4, 1, 2, 3, with but little difference between the 4th 

 and 1st and the 2nd and 3rd pairs respectively ; color — first pair 

 dark reddish brown, except the genual and coxal, which are yel- 

 low ; second pair light yellow, the coxal and exinquinal and the 



