Description of a New Species of Procellaria, by George N. 

 Lawrence. Read Feb. 18<A, 1S47. 



PROCELLARIA MERIDIONALIS. 



Specific Character. — Bill short; upper tail coverts white; 

 above, brownish Mack ; beneath, white; tarsi pale yellow; toes 

 yellow, marked with black at the end for two-thirds their length. 



Bill black and stout; sides of the upper mandible, unguis, and 

 point of the lower mandible whitish horn color; a narrow band of 

 the same color crosses the nasal case at its base. Unguis strong, 

 veiy much curved, and acute. The upper mandible has the nos- 

 trils on its ridge covered by a very prominent horny sheath, and 

 separated by a thin septum ; a deeply grooved line runs its entire 

 length immediately below the nostrils; between the unguis and 

 nasal case it is deeply indented. The lower mandible has a grooved 

 line running through its centre, on each side. 



Forehead white, marked with a few light-brown feathers ; occi- 

 put and top of the head, inclnding the eyes, black; cheeks, throat, 

 and all the under parts pure white, a few black feathers on the 

 sides near the insertion of the tail; hind part of the neck white, 

 mixed with cinereous ; upper part of the back ash, which color ex- 

 tends on the sides of the upper part of the breast; back brownish 

 black ; tail graduated, consisting of twelve feathers, the central, one 

 and a half inches longer than the outer, white at the base for one- 

 third their length, remainder brownish black ; upper tail coverts 

 pure white: lower, white tipped with light ash, and very long, 

 reaching to the end of the tail. 



Primary quills black ; secondaries light-brown at the ends, and 

 white at the base ; tertials dark-brown ; under wing coverts and 

 axillars white. 



Tarsi pale yellow; toes and webs yellow at the base for about 

 one-third their length, remainder biack; hind toe wanting, but in 

 its place a very acute black spur; tarsi and toes rather slender. 



