186 
7. Kittr- 
WAKE. 
DEScRIP=- 
TION. 
KITTIWAKE GULL. Cuass Ib 
ed near the end witha black bar; the es of 
a dirty bluish white. 
Linneéus. toakes this species synonymous 
with the Larus tridactylus or Tarrock ; but 
as we have had an opportunity of examining’ 
several of each species, and find in all those 
strong distinctions remarked in our deserip- 
tions, we must decline assenting to the opinion 
of that eminent naturalist. 
Larus tridactylus. L. dorsoca- Ritsa Eslandis, incolis Christi- 
nescente, reetricibus. albis, ansoe, Lille Solvet, Rotter- 
digite postice mutico. Lath. en. Brunnich, No. 140. 
Ind. orn. 817. id. Syn. vi. Kittiwake. Szblbald’s hist. 
393. Scoél. 20. 
Larus Rissa. Gm. Ein. 594. Arct. Zool. ii. 244. 
Le Goeland cendré. Pl. Enl. 
253. 
THE leneth of this species is fourteen inches : 
the extent three feet two. When arrived at full 
age, the head, neck, belly, and tail, are of a 
snowy whiteness; behind each ear is sometimes 
a dusky spot; the back and wings are grey ; the 
exterior edge of the first quil feather, and tips 
of the four or five next, are black; the bill yel- — 
low, tinged with green ; the inside of the mouth 
