Specimens mounted or Skins. 
Skeletons. 
Eggs. 
Case 
No. 
Hydrochelidon nigra, (Linn.) 
Black Tern. 
1. Immature, Easington, 1901. 
• • • 
id'A 
CCCXII 
Sub-Family LARINJE. 
Genus Xema. 
Xema sabinii, (Sabine.) 
Sabine's Gull. 
1. Young in first plumage. 
2. Adult male. Botli killed at Flam- 
borough, Sept. 1890. Presented by 
the late Cauon Raine. 
Genus Rhodostethia. 
Rhodostethia rosea, (Macgill.) 
Boss's Gull. 
Genus Pagophila. 
Pagophila eburnea, (Phipps.) 
Ivonj Gull. 
Genus Larus. 
Larus ridibundus, Linn. 
Black-lieaded Gull. 
1. Adult, Bridlington, Winter 1887. 
2. Adult male, Oland, Summer. Pur¬ 
chased. 
8. Young male, Solway, Aug. 1885. 
Purchased. 
Larus ichthysetus, Pall. 
Great Black-headed Gulf. 
CCCXIII 
CCCXY 
• • • 
Various Yorkshire clutches 
CCCXYI 
Larus minutus, Pall. 
Little Gull. 
1 & 2. Immature bird, Rudston Coll. 
1. Adult, Winter, Rudston Coll. 
2. Adult, Summer, Strickland Coll. 
3. Adult, Scarbro’, Oct. 1880. Pur¬ 
chased. 
Odd 
CCCXV1II 
