1018 
STERNA FLITVIATILIS. 
round the obtuse end ; these are mingled with light brown spots and blotches, beneath which are the usual 
bluish-grey and purple clouds. The dark markings are, as a rule, somewhat regular-edged. The dimensions 
of several are 167 by 123, 17 9 by 123, 1-73 by 1-22, and 1'65 by 121 inch. 
Some eggs are richly clouded with red-brown, running in an oblique direction across the shell ; and one 
specimen, in a large series collected by Mr. Seebohm, has a zone of hieroglyphic blotches at some distance 
from the obtuse end, mingled with blots of bluish grey, the rest of the egg being almost devoid of 
markings. Two opposite extremes in size in this series are T81 by 1-09 and 1*55 by 1T 9 inch. 
