REPORT ON THE ANATOMY OF THE PETRELS. by 
chlororhyncha, and Phebetria fuliginosa, he states that the smaller of these ossicles is 
wanting, though the larger is still developed. In a table he proposes the annexed 
classification of the Procellariinee. 
I. Wing-ossicles present. Twelve rectrices. 
a. Puftinese— 
(Estrelata, Pufinus, Majaqueus, Adamastor. 
II. Wing-ossicles absent. 
First primary longest. 
More than twelve rectrices. 
b. Fulmareee— 
Ossifraga, Fulmarus, Daption. 
Twelve rectrices. 
Margin of beak without lamelle. 
Pagodroma. 
Beak with lamellee. 
c. Prionese— 
Halobena, Prion. 
Second primary longest. 
d. Procellariese— 
Procellaria, Oceanites. 
A. H. Garrod, in the same year, shows! that the Petrels being “holorhinal” must 
be separated from the “ schizorhinal” Laride and their allies. He further proposes’ to 
divide the Petrels or Nasute into two groups, the “Storm-Petrels,” with a formula 
AB.XY and no ceca, and the “ Fulmaride,” with formula AB.X and two short ceca. 
Bulweria alone has a formula A.X and is therefore quite different from the Storm- 
Petrels. In both groups the great pectoral muscle is double, as in many of the 
“ Ciconiiformes,” and there are two carotids.? The Nasutz form the second cohort of his 
“ Anseriformes,” consisting af them and of the Anseres, which latter include the Anatide, 
Spheniscidee, Colymbidze, and Podicipitide. 
1876. P. Pavesi, in his Studi anatomici sopra aleuni uccelli,* has given a few details 
on the visceral anatomy of Diomedea exulans, especially as regards the form of the 
stomach and the presence of spines on the laryngeal eminence, continuous laterally 
with a zone of similar papillae developed round the commencing oesophagus. 
1 Proc. Zool. Soe., 1873, p. 37; Collected Papers, p. 128. 
2 Loc. cit., pp. 641, 642; 1874, p. 122; Collected Papers, pp. 204 and 220, 221. The passage on pp. 641, 642, describ- 
ing the muscles of the Petrels, is unfortunately misprinted in the original paper. It is given in a corrected form, as 
altered by the writer, in the reprint of Professor Garrod’s papers, p. 204. The two birds called in Garrod’s text Procellaria 
pelagica (2) and Procellaria fregata (2), the “Storm-Petrels” on which his observations were based, were probably in reality 
Oceanites oceanicus and Garrodia nereis (cf. Proc. Zool. Soc., 1881, p. 736). 
3 Loc. cit., 1873, p. 470; Collected Papers, p. 175. 4 Ann. Mus. Civ. Gen., vol. ix. pp. 66-82. 
(Z0oL. CHALL. EXP. —PART XI.—1882.) L2 
