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. 



Indies. Lines. 



Length from tlie tip of the bill to the 



point of the tail 10 9 



of the bill from the gape 1 



of the wings when folded 7 6 



of the tail 4 



q 



Length of the tarsus 



of the outer toe... 

 of the middle toe 

 of the inner toe... 

 of the hinder toe 



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. Tiirtur, 

 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. 



