report on the anatomy of the petrels. 

 List of Material Examined. 



In all thirty-one species, represented by seventy-four specimens and belonging to twenty- 

 two different genera. Besides the above, which only represent entire birds, there were a 

 number of separate heads, which have been cleaned, and will be found enumerated below 

 in the list of osteological material in this group examined by me. 



For the characters of this new genus, vide infra, p. 59. 



