PLATE CCXXIV. 



only of another fpecies, and others who have defciibed it as u non- 

 defcript, without having duly afcertained that it had been pievioufly 

 defcribed. It is indeed obvious that the new fpecies SubcHJiatus of 

 Jacquin, and which on the authority of that author has found a place 

 in the Gmelinian Syfiema NaiurcEj is no other than a variety of Ru- 

 bricollis (alfo defcribed in the laft-menlioned work.) It appears like- 

 wise lo be confounded as a bird allied to Colymbus Urinator by one 

 writer; while another denominates it as a new fpecies Grifeiis. And, 

 laftly, vve may add that a variety of it, ^ of Latham feems lo coo- 

 ftitute another diftin<5l fpecies in the work of GmeliUf under the fpe- 

 cific name of Parotis ; if this conclufion be corre6t^ it is obvious the 

 varieties of Rubricollis form no lefs than three different ipecies in the 

 Gmehnian Syftem. 



Length about feventeeu inches. Found in Northern Europe as 

 far as the ar6iic regions. 



P LATE 



