1. PUFFINfS. 



369 



I 



Thyellodroma, Stejn. Pr. U.S. Nat. Mus. xi. p. 93 '^'•^^^' 



(1888) PI 



Zalias, F. Heine, Nom'enci Mus'. ' Hdn. 'p.' "362 'P^'"''"'"'- 

 (1890) (ivceThiellus). ^ 



Shearwater, Neivton, Enc. Brit. ed. 9, xxi. 



wofir'" ^'"'''"^' distributed throughout the seas of the whole 



,p ., , ^^y to the Species. 



(I. 1 ail long, cuneate. 

 a'. Under surface white ; feathers of the head 

 sides of neck, and upper plumage generally 

 sooty, edged conspicuously with white .. leucomelas p 370 

 h. Under surface white; feathers of the head ^' 



and upper plumage not edged with white 

 a . Back, greater wing-coverts, and primaries 



entirely sooty „ . „„, 



h" Tin^i J -^ ; ; cuneatus, p. 371 



6 . Back and greater wing-coverts grey > P- •J'i- 



outer half of inner webs of primaries' 



white h 11 ■ 



C. Entire plumage sooty-brown ,TiF' , „^ 



b. Tail shorter, rounded. ^ Mororhynchus, p. 372. 



d'. Under surfece white. 



*^ ' It^'^i^^'; "^^"o 1--0 inches and upwards. 

 a . Back and upper tail-coverts conspicu- 

 ously edged with light dusky; head 

 above darker than the back of the 

 neck. 

 a\ Sides of the neck distinctly defined ; 

 flanks spotted; middle of the ab- 

 domen dusky gravis r, S7-' 



6\ Sides of the neck mottled; flanks and ' '' 



,,„ middle of the abdomen white kuhli,r, 375 



. Upper surface nearly uniform, includino- 

 the upper tail-coverts; sides of the 



head mottled ^,.^„t^ o-,. 



.^".^Smaller: wing 9 inches'and under'. '^'^'0P^^,V-^'^. 



c '. Primanes wholly dark beneath, 

 e*. Larger. 



«^ Blacker above; axillaries white, 

 subterminally black; flanks and 

 under tail-coverts mostly white. . anglorum, p. 377 

 6'. Lighter above; axillaries, lower ^ 



flanks, and under tail-coverts 



c". Under tail-coverts deep sooty-black. ,v^>^- 



a". Paler; flanks and axillaries dusky" opisthomclas, p. 380. 

 A". Darker ; flanks and axillaries > f '^^■ 



^i \T A- ^ ''^f .;, • •.•■■• auricularis, p. 380. 



dK INIedium size: axillaries blackish or 

 dusky. 

 d^. Uuder tail-coverts pure white • 



.» Tf''!i^^'''^-i'°°*y •' .'-''«"■«. P- 381. 



e". Under tail-coverts sooty on tlie 



sides ; axillaries blackish towards 



^ \^f ^"^ •.,■, • •. per,icm, p. 381. 



bmaller : axillanes white obscurm,Y> 382 





