THE GENERA. 71 



Larid^. (Plates XXX. xxxi. xxxii.) 



1. Three toes. 



Rissa — remiges 31 ; feet black. 367. 



2. Four toes ; three all united and one webbed to tarsus. 

 Pagophila — plumage pure white. 368. 



3. Four toes ; three united. 

 Larus — tail square. 356-366. 



Rhodostethia — breast white and rose ; tail wedge-shaped. 355. 

 Sterna — bill longer than head ; tail forked. 344-352. 

 Anous — whole body blackish brown ; tail graduated. 353. 

 Xema — bill shorter than head : tail forked ; legs long. 354. 

 Hydrochelidon — bill as long as head ; tail slightly forked ; legs 



short ; webs incised. 341-343. 

 Stercorarius — bill strong, cutting, compressed and with a 



cere ; remiges 26 or 28 ; tail rounded. 369-372. 



MeropiDjE. (Plate xii.) 

 Merops — wings long and pointed ; bastard primary very small ; 

 tail long. 154, 155. 



MOTACILLIN^. (Plate V.) 

 Anthtis — tail short and forked. 66-71. 

 Motacilla — tail long and even. 60-65. 



MUSCICAPIN^. (Plate vi.) 

 Muscicapa — 78-80. 



CEdicnemiDjE. (Plate xxv.) 



CEdicnemus—\3.\sMS reticulate before and behind. 290 



Oriolin^e. (Plate v.) 

 Oriolus — 72. 



OtidiDjE. (Plate xxv.) 



Otis — tarsus reticulate before and behind. 287-289. 



Panurin^. (Plate iv.) 

 Panurus — 49. 



Paring. (Plate iv.) 

 Acredula — long tail, much graduated. 50, 5 1. 

 Pants — short tail, nearly even. 52-57. 



PASSERIDiE. (Plates j. to x.) 

 (See under its various sub-families.) 



PelecaniDjE. (Plate xvii.) 

 Phalacrocorax — wings moderate; middle toe shorter than outer. 



199, 200. 

 Sula — wings long ; middle toe not shorter than outer. 201. 



Phasianid^. (Plates xxiii. xxiv.) 

 Tarsus feathered — 



Tetrao — tarsus without spurs. 269-272. 

 Tarsus unfeathered. 



Coturnix — wings long ; tail very short. 276. 



Perdix — first primary short ; wings short ; tail short. 274, 275. 



Phasianus — wings short ; tail very long. 273. 



