No. 1.] THE AUSTRAL AVIAN RECORD 29 



The preceding is the Maxillary Thrush, already dealt with 

 in this Journal. 



When Sharpe arrived at Drawing No. 153, with the name 

 Frivolous Thrush, he wrote : " This figure is the type of 

 Latham's description of the Frivolous Thrush. The species 

 should in future bear the name of Pomatorhinus jrivolus 

 (Lath.) Wathng says that his figure is of the natural size. 

 The white tips to tail-feathers are not given in the figure 

 as they were in P. temporalis, but there is no doubt as to the 

 species." Gray in 1843 would not acknowledge the specific 



identity but wrote: "Pomatorhinus ?" and Gould 



entered Latham's name with a ? in the synonymy of 

 P. temporalis but would not displace Vigors and Horsfield's 

 specific name. 



Turdus tenebrosus Latham. 



Plate 5. 



In the Supplement to his Index Ornithologus Latham 

 provided Latin names and gave curt diagnoses of the birds 

 he fuUy described in the second Supplement to the General 

 Synopsis of Birds, and he introduced the above name for his 

 Brown-crowned Thrush, whose description reads : " This 

 species is about six inches long ; bill pale blue ; legs black ; 

 back and wings black, but the quills are edged with white ; 

 the chin is black, from thence to the vent white ; but the 

 sides of the body next the wings and the crown of the liead 

 are brown. Inliabits New Holland ; frequently seen about 

 Port Jackson, in Neiv South Wales.'' 



In this case, when Sharpe examined Drawing No. 144 of 

 the Brown-crowned Thrusli he concluded : " This figure 

 represents the young of the Sordid Thrush, Turdus sordidus 

 Lath. As the name appears on an earlier page than 

 T. sordidus, it must take precedence, and the species must 

 be called Artamus tenebrosus (Lath )." 



In 1843 Gray referred the drawing to the genus Artamus 

 but would not decide its specific identity, writing " Artamus 



? " while Gould would not associate it even suspiciously 



with any species. 



