52 
CATALOGUE OF 
Sp. 4 . 
Syn. 
Sp. 1 
Syn. 
Sp. 1 
Syn. 
Sp. 2 
Syn. 
* 
cases 
L. Parasiticus. Linnaeus. 
Lestris Parasiticus, Linn. Gmel. Lath. Stercorarius Longican- 
dus, Bliss. Le labbe a large Queue, Buff. Stercorarius 
Cepphus, Shaw. Stercoraire Parasite ou Labbe, Temm. 
Arctic Bird, Edw. Arctic Skua, Selby. Arctic Jager, 
Eyton.* 
GENUS 9. Larus. Linnceus. 
SUB GENUS 1 . Rissa. Leach . 
. R. Cinerea. Brisson. 
Larus Rissa, Linn. Gmel. Rissa Brunnichii, Shaw. Gavia 
Cinerea, Briss. Mouette Tridactyle, Temm. La Mouette 
Cendr6e Tachetee, Buff. Kittiwake, Lath. Penn. Mont. 
Bewick. Young Kittiwake, Bewick. 
SUB GENUS 2. Larus. Stephens. 
. L. Canus. Linnceus. 
Larus Canus, Linn. Gmel. Lath. L. Hybernus, Gmel. Gavia 
Hyberna, and Cinerea, Briss. L. Fuscus, Seu Hybernus, 
and L. Cinereus Minor, Will. Ray. La Mouette d’Hiver, 
Buff. Mouette a Pieds Bleus, Temm. Common Gull, and 
Winter Mew, Lath. Penn. Mont. The Common Gull, Bewick. 
. L. Argentatus. Brunnich. 
Larus Argentatus, Gmel. Shaw. L. Marinus,Var. B. Lath. L. 
Argentatus, Temm. Goeland a Manteau Bleu, Temm. Her- 
ring Gull, and Silvery Gull, Penn. Herring Gull, Mont. 
Bewick. 
The synonyms of this and the preceding species are so intermixed, and in many 
no admeasurement being given, it is impossible to separate them. 
