PROCELLARIA TURTUR. 
towards its base. Legs and toes, in preserved specimens, light brownish 
red, the webs between the toes a pale flesh-colour, with small brownish red 
variegations towards the toes ; claws dark brownish red, each marked superiorly 
towards its base with a narrow longitudinal yellowish brown stripe. Eyes 
blackish brown. 
Form, &c. — Figure moderately robust, head and neck rather small ; bill 
stout, particularly towards the base, the hook of the upper mandible rather 
robust and moderately arched, the curvature less than in P. Forsteri ; the 
cutting edge of the under mandible slightly arched towards the tip, and the 
latter, which is acute, is slightly inclined downwards ; nasal tube short, 
depressed and terminated by two nostrils, separated by a visible septum. 
Tarsi rather slender, and clothed with small, flat, irregularly shaped scales ; 
anterior toes moderate, and the place of the hinder one occupied by a short 
pointed claw. Webs broad, the anterior margin of that between the outer and 
middle toe slightly oblique ; in the one between the middle and inner toes, 
the obliquity is greater; claws short, slender, slightly curved and pointed. 
The wings when folded reach to the tip of the tail, the first and second quill 
feathers nearly of equal length and longest. Tail much rounded, the two 
middle feathers being about an inch longer than the outer one of each side. 
DIMENSIONS. 
Inches. Lines. 
Length from the tip of the bill to the 
point of the tail 10 9 
of the bill from the gape 1 2 
of the wings when folded 7 6 
of the tail 4 0 
Inches. Lines. 
Length of the tarsus 1 i| 
of the outer toe l 4 
of the middle toe 1 4 
of the inner toe J 1 
of the hinder toe 0 1 
The colours of the male are the same, only rather brighter. 
This species is less bulky than P. Forsteri, and is readily distinguished from it, not 
only by marked differences of the bill, but also by its tail being more rounded, and very 
differently marked at the point. The bill of P. Forsteri is longer and narrower than that of 
the species just described, and the hook of its upper mandible is much more compressed and 
more curved : the relative length of the wings is also different in the two species in question, in 
P. Forsteri, when folded, they exceed the point of the tail by at least an inch ; in P. Turtur, 
again, they only reach the extremity of the centre tail feather. 
The observations we have made in regard to P. Forsteri will equally apply to this species, 
which is an inhabitant of the same seas, where it observes the same practices, and apparently 
feeds upon the same kind of food. 
