486 Shufeldt, Extinct Cormorant found in Montana. Loct' 



With respect to the present article, the bones which interest us 

 here are to be found on Plate xxi of the aforesaid ' Bulletin ' (figs. 

 262-264), and they represent different fragmental parts of three car- 

 pometacarpi of an adult Phalacrocorax macropus. Figs. 262 and 

 263 are of left-side bones, the first being rather more than the proxi- 

 mal moiety; fig. 264 is of the distal portion of a carpometacar- 

 pus from the right side. The latter does not especially interest 

 us in the present connection, while figs. 262 and 263 distinctly 

 do, as I shall show further on in this paper. 



Up to include the early part of the year 1915, no fossil remains 

 of Phalacrocorax macropus had been discovered outside the State 

 of Oregon, and if they had, such a discovery was not known to 

 science. Early in February of that year, Mr. Charles W. Gilmore, 

 of the Division of Vertebrate Palaeontology of the United States 

 National Museum, referred some fossil bone material to me for 

 examination, reference, and publication. This material consisted 

 of one large and two smaller pieces. (Figs. 1 and 2, Plate XXX.) 

 The largest fragment and the one next in size to it had been repaired 

 by sealing them together with plaster-of-paris, — an excellent 

 piece of work done by one of Mr. Gilmore's assistants at the mu- 

 seum. A few fossil and imperfect bones were firmly fixed in the 

 matrix of the latter piece, the principal one apparently being the 

 rib of some teleostean fish; these bones do not concern us here. 

 On the twelfth of February, 1915, I photographed the two other 

 fragments, natural size, and in such a way as to show the fossil 

 bones the fragments contained. (See Plate XXX.) It will be ob- 

 served that the smaller fragment presented in it a vertebra and 

 a rib of some adult teleostean fish of the period, which may or may 

 not be known to science, and only interest us here from the fact 

 that they occur in connection with the fossil bird bones found in 

 the largest fragment (Fig. 2). These, with the other specimens, 

 were collected by Mr. C. M. Bauer on the twenty-fifth of October, 

 1914, while employed by the United States Geological Survey in 

 southeastern Montana. Mr. Bauer was in charge of this collecting 

 party at the time in question, and in noting this specimen he entered 

 the following remarks in his record (p. B 62) : " Fish Bones. Local- 

 ity T. 53 R. 60 E. North Side Cottonwood Creek: Base of Arikaree. 

 Oct. 25, '14." Mr. Gilmore has catalogued this specimen at the 



