NATURAL SCIENCES OF PHILADELPHIA. 



191 



Note. The following supposed species are not given in the body of my 

 papers ; and I only know of them by the descriptions. 



Puffinus Rollandii Quoy and Gairaard, in Freynete, Voy. Antour du Monde ; 

 and Zool. Journ. iii. p. 271. 



Procellaria lugubris, Tschudi, Cab. Journ. f. Ornith. 1856, iv. p. 185, (not of 

 Natterer.) " The whole body is dark brown ; the back somewhat deeper col- 

 ored than the belly; the tail wholly black ; the inner side of the wing darker 

 than the outer. Bill and feet reddish ; iris ashy gray. Surpasses in size ea- 

 pensis ; also compressed in form. The description of P. antarctica is too in- 

 accurate to say with certainty if it be the species here described. Between 

 46 and 36." [Tschudi, ut supra.) It is impossible to say from the descrip- 

 tion what species of Nectris or Pterodroma this is. 



Procellaria maculata, loc. cit. "Island of Juan Fernandez; 33 S. Head, 

 breast and belly wholly white; the back bluish-white with darker spots, the 

 wings gray with bluish spots, the tips of the four longest primaries wholly 

 black. Tail fan-shaped, grayish blue. Bill and feet deep orange yellow. Iris 

 dark brown. About the size of the preceding species." Evidently an JEstre- 

 lata ; but the description applies to no species with which I am acquainted. 

 It comes nearest to alba Lath, or Lessonii Garnot. 



Procellaria bicolor, op. cit. p. 187. "Bill and feet black; neck, back, and 

 lesser wing coverts deep blackish gray, wing feathers and tail somewhat 

 lighter. Head and throat wholly black; belly pure white." Doubtless a 

 young .Eslrelata ; but of what species the description gives no hint. 



SUPPLEMENT. 



Some few additions to, and corrections of my previous papers, which sub- 

 sequent investigation has brought to my knowledge, may with propriety be 

 inserted here. 



Procellariese. 



P. 79, line 25, for "size" read "length." H. microsoma is rather smaller 

 than P. pelayica in actual size of body, though the length of wings and tail is 

 not less. This explains an apparent descrepancy in my statements on p. 79 

 and p. 90. 



* I would now unite Thiellus and Nectris with Puffinus, leaving but three gonera to be recog- 

 nized. 



t These six are Buhveria MacgilUvragi and Proeellaria ParJcinsoni, Gray ; P. neglecla and P. 

 incerta Schl.; ySCstreiata grisea and M. gavia of my paper. 



X Prion brevirostris Gould. 



j Which are P. trthys Bp., P. lugubris Natterer, P. melitensis Schembri; Thalassidroma Segethi 

 Ph. and Ldbk. ; Fiegctta Luivrencii Bp. 



JS P. seric.fus Less. 



[ D gibbosa Gould, which may be nigripcs Aud., and my D. leptnrhyncha. 



** As just stated, the three recognized species of Pelecanoides require additional evidence to 

 prove conclusively that they are not merely the extremes of a single variable species. 



1866.] 



