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at a glance from 0. oceanicus. It is so far ouly knowu from the coast of Chili aud 

 the Galapagos Archipelago, where it evidently breeds. We have a large series from 

 Albemarle, Narborough, Chatham, James, (!harles, Abingdon, and Bindloe Islands, 

 and the snrronnding waters. It was generally observed more frequently in the 

 southern portion of the archipelago than Procellaria tethy.i, and rarely farther from 

 shore than abont one mile. 



Genus PROCELLARIA L. 



Procellaria, Linnaeus, Syat. Nat. ed. 10, I. p. 131 (1758). 



Atlantic Ocean and Galapagos Archipelago. 



(The genera ProceUaria, Ikiloci/pfena, and Oceanotlroma are so closely allied 

 that they hardly require generic separation, but the characters mentioned in Cat. B. 

 Brit. Mm. XXV. p. 343 can serve to distinguish them.) 



1. Procellaria tethys Bp. 



ProceUariii tethys, Bonaparte in ./. f. Oni. p. 47 (1S53), and in Oniipt. Rend. XXXVIII. p. 662 

 (1864) ; (,p. rit. XLII. fig. 769 (1856) ; Salvin in Trims. Znnl. Sor. Loml. IX. p. 507, 

 PI. LXXXVIII. ag. 2 (1876) ; Ridgway in Proc. U.S. Nat. Mus. XLX. p. 656 ; Salyin, Cut. B. 

 Brit. Mus. XXV. p. 346. 



This little petrel is only known from the Galapagos Archipelago aud contiguous 

 waters. Townsend found it at lat. 4 2'Z' north, long. 82 32' west, and about 4i)() 

 and ()i)0 miles east of the Galapagos Islands. We have received it from the sea 

 round Wenman, Culpepper, Albemarle, aud Tower Islands. It was seen far more 

 abundant in the northern portion of the archijielago and generally far out to sea. 



Genus SPHENISCUS Briss. 



Spheiiiscus, Brisson, Oni. VI. p. 96 (1760). 



Southern seas, north to the Galapagos Islands and South Brazil. 



1. Spheniscus mendiculus Snnd. 



Slihenixciis mendinihis, Sundevall in Proi:. Zovl. .s'oc. pp. 126, 129 (1871); Salvin in Tnmx. Zo'd. S'ic. 

 IX. p. 508, PI. LXXXIX.: Wolf, Brsucli. a. d. Gnlupagos his. p. 42 (1879) ; Ridgway in Proc. 

 U.S. Nat. Mus. XIX. p. 660 ; Grant, Cat. B. Brit. Mus. XXVI. p. 653 (1898). 



Nearest to S. maffellanicus, but with longer and more slender bill, and smaller 

 in size, (^'hin and upper part of the throat white ; superciliary line narrower ; the 

 flippers have no trace of a wliite margin on the inner edge ; the dusky band across 

 the fore-neck is not well defined. 



The plumage of the adult bird is well described by the authors (juoted above. 

 The female differs from the male at a glance in being much smaller. The immature 

 bird has no white superciliary line, all the area below where it runs in the adult 

 bird, right across the throat being white, shaded with grey ou the sides of the head. 

 The foreneck is blackish grey, somewhat mottled with white. The adult bird, in 

 both sexes, has the iris reddish brown, the bill black, basal two-thirds of mandible 

 tlesli-colour, feet black, sometimes more or less spotted on the toes or webs with 

 light pinkish creamy buff, but there is no record or note on any of our labels of a 

 well-defined orange fore-parts of the webs as shown on the plate in the Transactions 

 Zool. Soc. IX. 



We have received a large series from Albemarle Island, and a few from Duncan 

 and Brattle. 



