532 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



17. Heteroscelus incanus (Gm.) 

 Seen on several occasions. 



18. Phalacrocorax dilophns cincinnatus (Brandt). 



A colony of about one hnndred of these cormorants were breeding on 

 almost inaccessible cliffs which rose perpendicularly from the water. 

 Seven nests, examined from above, contained either three or four eggs 

 each. Thousands of this species were observed at Elida and St. Martin's 

 Islands, and San Quentin Bay. 



[Note. — The specimens obtained are in full breeding plumage, and, 

 so far as the skins indicate, can only be distinguished from the eastern 

 forms, dilophus proper and JloiHdanus, by the entirely white superciliary 

 tufts, these being wholly black or but slightly mixed with white in the 

 above-named races. — R. R.] 



19. Larus heermanni Cass. 

 Common. 



20. Thalasseus regius Gamb. 

 Common in April, rare in May. 



CATALiOGUE OF A t'Ot, LiECTIOX OF BIRDS IVIADS: IVEAR THE ISOVTH- 

 EKN EXTREMITY OF THE PEIXUVSULA OF I.OVVER CALIFORNIA. 



BY JL. BELDI^O. 



[Edited by R. Ridgway.] 



This paper is merely intended to give what are supposed to be the 

 most interesting results of a winter's work in Lower California. Sick- 

 ness in May, occasioned by exposure to the hot sun, prevented a con- 

 templated visit to one or more high mountains near the village of Mira- 

 ilores, and also prevented the securing of specimens of some well-known 

 birds at San Jose — consequently the list is not as complete as it might 

 otherwise have been. 



Some of the species found by Xantus do not appear in the list. 

 Perhaps the most important of these is the rare Cape Eobin {Merula 

 conjiilis), which, with Columha erythrina, is probably a bird of the mount- 

 ains. 



Most of the Cape species are, as in 1859, abundant and tame. 



It appears quite likely Mr. Xantus neglected to report some very 

 common, well-known residents, since these do not appear in his list.* 



*The only papers relating specially to the biidsof the vicinity of Cape Saint Lucas 

 are the following : 



(1. ) Xantus, John. — Descriptionsof supposed new species of birds from Cape Saint 

 Lucas, Lower California. <Proc. Philad. Acad. Sci., Nov., 1859, pp. 297-299. (New 

 species : Picus lucasanus, p. 298 ; Campy lor hynchus affmis, p. 298 ; Flarporhynchus cinereus, 

 p. 298; and Bracliyrhamphus liJ/poleucus, p. 299.) 



(2.) Baird, S. F. — Notes on a collection of birds made by Mr. John Xantus, at Cape 

 Saint Lucas, Lower California, and now iu the Museum of the Smithsonian Institu- 



