PHALACEOCOEAX. 155 



black, as in P. auritus. The species is found over the greater part of South America, 

 from Patagonia northward to the coasts of Central America and Texas ^. We have no 

 specimens from Mexico in our collection, and it is uncertain whether the Cormorant 

 recorded by Herrera as P. pelagicus, from the Valley of Mexico, has been correctly 

 identified. Salvin shot one on the Lake of Peten, where Leyland also noticed it in 

 flocks of several hundreds on the islands of the lake. It appears to be abundant in 

 Nicaragua, Costa Eica, and Panama. 



Prodigious numbers of these birds often assemble together, and Mr. Richmond saw 

 over a thousand on the Lake of Nicaragua, where he was informed that as many as four 

 or five thousand are sometimes to be seen nesting in the vicinity. 



5. Phalacrocorax mexicanus. 



Carbo mexicanus, Brandt^ Bull. Acad. St. Petersb. iii. p. 56 ^ ; Salv. Ibis, 1865, p. 192 '. 

 Phalacrocorax mexicanus, Scl. P. Z. S. 1857, p. 207'; Moore, P.Z. S. 1859, p. 65'; Scl. & Salv. 



Ibis, 1859, p. 233'; Ferrari-Perez, Pr. U. S. Nat. Mus. ix. p. 169"; Herrera, La Nat. 



(2) i. pp. 188, 330"; Salv. Ibis, 1889, p. 376'; A. 0. U. Check-1. N, Amer. Birds, 2iid ed. 



p. 43 " ; Ridgw. Man. N. Amer. Birds, 2nd ed. p. 79 " ; Ogilvie Grant, Cat. Birds Brit. 



Mus. xxvi. p. 381 '\ 

 Graculus mexicanus, Lawr. Mem. Bost. Soc. N. H. ii. p. 316^^; Bull. U. S. Nat. Mus. no. 4, 



p. 50"; Dug^s, La Nat. i. p. 142 ". 

 Graculus americanus (lapsu), Sumichr. La Nat. v. p. 235 ". 



Ftil. cBStiv. P. vigucE similis, sed minor ; gula nuda aurantiaca ; iride viridi. Long, tota circa 27'5, al« lO'l, 

 caudse 5-8, culm. 1-8, tarsi 1"8. (Descr. femins adultse ex Corpus Christi, Texas. Mus. nostr.) 



Piil. hiem. Diflferfc eodem modo sicut in P. vigua : rostro corneo, culmine et mandibiila basi fuseis ; gula nuda 

 brunnescente ; pedibus nigris ; iride viridi. 



Hab. NoBTH Ambeica, Southern United States, north in the interior to Kansas and 

 Southern Illinois ^ lo, Texas ^i. — Mexico ^, Tampico, Valles, San Luis Potosi, 

 Chapala, Jalisco (Richardson ^i), Valley of Mexico {Herrera ''), Presidio de Mazatlan 

 (Forrer^^), Mazatlan {Grayson, Bischoff^^), Guanajuato {Buges^^), Santa Ana in 

 Vera Cruz {Ferj'ari-Perez^), Santa Ana, near Guadalajara, Jalisco {Lloyd), Jalapa 

 (Salle ^), Santa Efigenia ^^, Lake Patzcuaro, Cosamaloapam, Tehuantepec, Tapana- 

 tepec, Tonala {Sumichrast^^), Cozumel I. {Gaumer^); Guatemala, Lake of 

 Peten {Leyland \ 0. /S. "), Lake of Yzabal {0. S.), Duenas, Chiapam {0. S. & 

 F. B. G. 2 4). 



The Mexican Cormorant resembles P. vigua and apparently goes through similar 

 changes of plumage, but it is not nearly so large ; the bill, too, is very much smaller. 

 We have received several specimens from Texas, collected by Mr. Armstrong, mostly 

 at Corpus Christi and Brownsville, and the localities quoted above show that it occurs 

 in most provinces of Western Mexico. Grayson says that at Mazatlan the bird is 

 common at all seasons i^. Herrera records the species from the Valley of Mexico 7, 



20* 



