SYSTEMATIC INDEX. 
5. ridibundus, Linn. 
6. marinuB, Linn 
7. fuscus, Linn 
8. argentatus, Gm 
9. canus, Linn. 
10. hyperboreus, Gunn. 
11. leucopterus, Faber. 
CCX. Pagophila, Kaup 
I. eburnea (Phipps). .. 
CCXI. Rissa, Steph. 
I. tridactyla (Linn.). 
FAMILY STERCORARIIDAI. ... 
CCXII. Megalestris, Bp. 
I. catanhactes (Linn.). 
CCXIII. Stercorarius, Briss. ... 
1. pomatorhinus (Temm.). ... 
2. crepidatus (Banks). 
3. parasiticus (Linn.). 
SUB-ORDER ALCiE 
CCXIV. Alca, Linn. 
I. torda, Linn. 
CCXV. Plautus, Briinn 
I. impennis (Linn.) 
CCXVI, Uria, Briss. 
1. troile (Linn.) 
2. ringvia, Lath 
3 - bruennichi, Sabine. 
CCXVII. Cepphus, Pall. 
I. grylle (Linn.) 
CCXVIII. Alle, Link 
!• alle (Linn.). 
CCXIX. Fratercula, Briss. 
I- arctica (Linn.) 
ORDER PROCELLARIIFORMES. 
family procellariid^. 
59 
63 
66 
70 
73 
76 
79 
81 
81 
84 
84 
89 
89 
90 
93 
93 
97 
lOI 
105 
106 
106 
no 
III 
1 14 
114 
119 
120 
123 
123 
127 
127 
130 
130 
135 
13s 
