190 PROCEEDINGS OF THE ACADEMY OP 



before me are larger than is indicated by Dr. Schlegel as characteristic of 

 Garnoti : while the feet are colored as in the smallest species, Berardii. A 

 considerable amount of variation is found in examples of undoubtedly the 

 same species ; so that perhaps we might without great violence consider the 

 different species as extremes of a single very variable type. 



I am mainly indebted to Dr. Schlegel's excellent article for characters 

 whereby to tabulate the supposed species with their synonyms. This author 

 has had before him examples which he has considered as indicative of three 

 species : and for the present I rely upon his judgment. 



1. Pelecanoides Garnoti Gray ex Lesson. 



Puffinuria Garnoti, Lesson, Voy. de la Coq. i. part ii. 1826, pi. 46. (Bill and 

 feet black. Length 8; extent 16; bill 12-12ths; wing 5 ; feet and 

 tail each 1 J.) Id. Man. Orn. 1828, ii. p. 394. Id. Traite d'Orn. 1831, 

 p. 730. (Queries urinatrix Gm. as syn.) 

 Pelecanoides Garnoti, Gray, Gen. Birds, iii. 1849, p. 646. 

 Haladroma Garnoti, Schlegel, Mon. Proc. Mus. Pays-Bas, p. 37. 

 Haladroma urinatrix, Bonaparte, C. A. 1856, ii. p. 206. (Excl. syn. Nee Gm. 

 fide Schlegel, who has examined Bonaparte's types.) 

 Habitat. West Coast of South America. 



Ch. Largest ; 8 to 8J in length. Bill slender and elongated ; black ; along 

 oulmen *75 ; height at end of nasal case -25. Width near the base *33. Tar- 

 sus blackish, 13 to 14 lines long; middle toe about one inch. 



2. Pelecanoides urinatrix Lacep. ex Gm. 



Procellaria urinatrix, Gmelin, S. N. 1788, i. part ii. p. 560, and of authors ; not 



Hal. urin. of Bp. 

 Pelecanoides urinatrix, Lacep. et Cuv. Gray, Gen. Birds, iii. 1849, p. 646. 

 Haladroma urinatrix, Illiger, Prod. 1811, p. 274. Schlegel, Mon. Proc. Mus. 



Pays-Bas, 1863, p. 37. 

 Puffinuria urinatrix, Gould, B. Aust. pi. 60. 

 Haladroma Berardii, Bonap. C. A. 1856, ii. p. 206 ; Excl. syn. (fide Schlegel ; 



from examination of Bp's types.) 

 Procellaria tridactyla, Forst. Descr. Auim. Ed. Licht. 1844, p. 1849. 

 Habitat. Australian Seas. 



Ghs. Of medium size ; feet bluish ; bill robust. Wing 4-50; tail 1-40. Bill 

 66 ; its height or width '33; tarsus one inch. Middle toe eleven lines. 



3. Pelecanoides Berardii Q. and G. 



Pelecanoides Berardii, Quoy and Gaim. Voy. Uranie, pi. 37. Temminck, PI. 



Col. No. 517. Gray, Gen. Birds, 1849, iii. p. 646. 

 Haladroma Berardii, Schlegel, Mon. Proc. Mus. Pays-Bas, 1863, p. 38; not of 

 Bonaparte. 



Habitat. Southern Oceans. 



Chs. Smallest; bill short, intermediate in robustness between that of the 

 two foregoing ; feet light colored, their membranes black. Length 7 inches ; 

 wing 4-40 ; tail 1-50. Bill -55, its height or width about -30. Tarsus -80 ; 

 middle toe -90. 



It will be observed that the differences between the size of the smallest and 

 largest of these supposed species is not great ; that an intermediate form oc- 

 curs between the two extremes ; that each is liable to considerable variations 

 in size; and that the colors of the plumage of all three are identical. 



Recapitulation. 

 The following is a summary of the genera and species of Procellariidce 

 treated of in the series of papers of which the present article is conclusive. 

 The numbers in the third column are those of species which I have recog- 

 nized, but which seem to require confirmation before their claims to validity 

 can be considered as fully established. It will be seen that more or less of 

 doubt attaches to 17 out of the 92 described. 



[May, 



