PISGATEIX. 
Consequently, it becomes the correct name for piscator Auct. =piscator Linne, 
Xllth Edition, not piscator Linne, Xth Edition. 
Sclater’s acceptance of Boddaert’s name leucogaster for the Brown Booby 
is in agreement with American writers, and Eothschild and Hartert, myself 
and various British and Continental and Colonial writers commonly since 1905. 
Sclater’s determination of Brisson’s Sula as the Brown Booby necessitates 
a readjustment of the group names to be used. The previous account was 
prepared with “ piscator ” Auct. as type of Sula, and I have altered the 
nomination only. 
Piscatrix Reichenbach becomes the genus name for the Linnean Pelecanus 
sula and Sula Brisson, the genus name (vice Hemisula mihi), for Boddaert’s 
Pelecanus leucogaster. 
The anomalous combinations Piscatrix sula Linne and Sula leucogaster 
Boddaert remind one of the similar incongruous nomenclature observed 
among the Owls, where we have or had, Asio otus, Otus asio, Strix aluco, and 
Aluco jlammea. 
In the present case we see a little charm in the phylogenetic 
relationship suggested by study of the forms and the new combinations. Thus 
I suggest that Piscatrix is more specialised than Sula, as the immature of 
Piscatrix bears a close resemblance to the immature of Sula ; the adult of 
Sula has, however, developed on the same lines as the immature, while 
Piscatrix has discarded the garb of the juvenile for a beautiful snowy plumage. 
Consequently Sula would represent the generalised stage of the Suline 
group, of which Piscatrix is a highly specialised offshoot. 
On p. 157, line 7 from the bottom, for Sula Brisson read Piscatrix 
Reichenbach. On p. 159, line 4 from the top, for Hemisula read Sula 
Brisson. 
VOL. IV. 
209 
