PROCELLARIIDA. — CXXX. 223 
Famity CXXX. PROCELLARIIDA. (Tue Perrets.) 
Nostrils tubular, united together in a double tube placed hori- 
zontally. Bill hooked at tip, its covering not continuous, consisting 
of several horny pieces separated by deep grooves; hind toe minute 
or absent. Wings long and pointed; tail moderate; feet short, the 
front toes full-webbed. Plumage compact and oily, not varying 
much with sex, age or season. Gregarious sea-birds, mostly silent, 
with remarkable powers of flight, rarely landing except to lay their 
eggs, Genera about 12; species about 70. Closely allied to the 
Petrels are the Albatrosses (Diomedeide), huge sea-birds with the 
nostrils disconnected, not united in a horizontal “ double-barrelled 
tube.” These families together constitute the order or suborder of 
“ Tubinares.” 
a. Secondaries 13 or more in number. 
6. Wing long (more than 7). 
c. Partition between nostrils very thin (much narrower than nostril). 
d. Gonys very slightly if at all concave, shorter than nasal tubes. 
Fubmarus, 338, 
dd. Gonys very strongly concave, longer than nasal tubes. 
: AESTRELATA, 340. 
cc, Partition between nostrils very thick, as wide as nostril; nostrils 
visible from above. . . . . . . «© « « © PUFFINUS, 339. 
bb. Wings shorter (less than 7). 
e. Tail even or slightly rounded. . . . . . PROCELLARIA, 341. 
ee. Tail slightly forked. . . . . . . . OCEANODROMA, 342. 
aa. Secondaries 10; tarsus not scutellate; legs long; claws narrow, pointed. 
OcranITEs, 343. 
338. FULMARUS Leach. (Eng. fulmar.) 
669. F. glacialis (L.). Fuitmar. Bill stout, nearly half as deep 
as long; nasal tubes dusky. Color bluish gray or dusky. L. 18. 
W. 12. B.14. The American bird (var. minor Kjerb.) considerably 
smaller. N. Atl, 8. to Mass. (Eu.) 
339. PUFFINUS Brisson. (Eng., puffin.) 
a. Dusky above; white below. 
6. Wing more than 12. 
670. P. borealis Cory. White of throat shading gradually into 
dusky of head and neck. L. 21. W.14. B. 24. Off Mass. 
671, P. gravis O’Reilly. GREATER SHEARWATER. White of 
throat separated rather abruptly from dusky of head and neck; 
rump with white. L. 20. W. 12. B. 14. Atlantic, abundant. 
(Eu.) 
6b. Wing less than 10. 
672, P. auduboni Finsch. Crissum with dusky. L.11. W.8. 
T. 34. B. 1}. Tropics, N. to N. J. (To John James Audubon.) 
aa, Dusky below as well as above. 
