CONTENTS. 
PAGE 
Geus HYDROCHELIDON — continued. 
No. 126. West Australian Whiskered Tern, Hydrochelidon 
leucopareia rogersi ........ 323 
Plate 103 lettered Hydrochelidon hyhrida, to face . . . 323 
Genus GELOCHELIDON 325 
No. 127. Long-legged Tern, Gelochelidon nilotica macrotarsa . 327 
Plate 104 lettered Gelochelidon inacrotarsa, to face . . 327 
Genus HYDROPROGNE ........ 332 
No. 128. Australian Caspian Tern, Hydroprogne tschegrava 
strenua .......... 333 
Plate 105 lettered Hydroprogne caspia, to face . . . 333. 
Genus THALASSEUS ......... 338 
No. 129. Bass Strait Tern, Thalasseus hergii poliocercus . . 340 
Plate 106 lettered Sterna hergii, to face .... 340 
No. 130. Torres Strait Tern, Thalasseus hergii pelecanoides . 348 
No. 131. Westralian Crested Tern, Thalasseus hergii gwendolence 350 
No. 132. Lesser Crested Tern, Thalasseus hengalensis torresii . 352 
Plate 107 lettered Sterna media, to face .... 352 
Genus STERNA . • . . . , . . . . . 356 
No. 133. Australian Roseate Tern, Sterna dougallii gracilis 358 
Plate 108 lettered Sterna gracilis, to face . . . . 358 
No. 134. Australian White-fronted Tern, Sterna striata 
melanorhyncha ......... 366 
Plate 109 lettered Sterna frontalis, to face .... 366 
No. 135. Australian Black-naped Tern, Sterna sumatrana kempi 370 
Plate 110 lettered Sterna melanauchen, to face . . . 370 
Genus STERNULA 373 
No. 136. Eastern White-shafted Ternlet, Sternula alhifrons 
platens . 375 
Plate 111 lettered Sterna sinensis, to face . , . . 375 
No. 137. Western White-shafted Ternlet, Sternula alhifrons 
tormenti 382 
No. 138. Eastern White-faced Ternlet, Sternula nereis nereis 383 
Plate 112 lettered Sterna nereis, to face .... 383 
No. 139. Western White-faced Ternlet, Sternula nereis horni 386 
IX 
