Stercorarius catarrhactes 1876, 
longicaudatus .... 
longicaudus...... | 
madagascarensis .. 
parasiticus ...... 
pomarinus........ 
pomatorhinus .... 
spinicauda........ 
BULA | ors ahaltii le 
Sterna, sp............. 
acuflavida........ 
acuticauda ...... 
acutirostris ...... 
alba. wee 
allbigenar aa. seen 
alewticals.< cts + esp 
aneestheta ........ 
876, 
1876, 
1876, 
1876, 
1876, 
1876, 
1876, 
1877, 
1876, 
1876, 
1876, 
1877, 
1876, 
1876, 
1876, 
1876, 
1876, 
1876, 
512 
P 
317 | Sterna anzstheta...... 
318 | 
819 | 
820 | 
321 
322 
anglica . 
ONntarxrchica... mA sfelen 
antilarum.....% 0. 
aYanea . 
arctica . 
argentea 
atripes . 
atro-fasciata 
aurantia. 
balenarum ...... 
bengalensis ...... 
bergii... 
Bis Bd, eleven 2 
