PHALACROCORAX. | 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 Rica, 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. Pétersb. iii. p. 56 1; Salv. Ibis, 1865, p. 192°. 
Phalacrocorax mexicanus, Scl. P.Z.S. 1857, p. 207°; Moore, P. Z. 8S. 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, 3307; Salv. Ibis, 1889, p. 376°; A. O. U. Check-l. N. Amer. Birds, 2nd ed. 
p. 43°; Ridgw. Man. N. Amer. Birds, 2nd ed. p. 79*°; Ogilvie Grant, Cat. Birds Brit. 
Mus. xxvi. p. 881". 
Graculus mesxicanus, Lawr. Mem. Bost. Soc. N. H. ii. p. 316"; Bull. U.S. 
p. 50"; Dugés, La Nat. i. p. 142". 
Graculus americanus (lapsu), Sumichr. La Nat. v. p. 285 an 
Ptil. estiv. P. vigue similis, sed minor ; gula nuda aurantiaca ; iride viridi. Long. tota circa 27:5, ale 10-1, 
caudee 5°8, culm. 1:8, tarsi 18. (Deser. femine adulte ex Corpus Christi, Texas. Mus. nostr.) 
Puil. hiem. Differt eodem modo sicut in P. vigua: rostro corneo, culmine et mandibula basi fuscis ; gula nuda 
Nat. Mus. no. 4, 
brunnescente ; pedibus nigris ; iride viridi. 
Hab. Norta America, Southern United States, north in the interior to Kansas and 
Southern Illinois 9 !°, Texas 11—Mexico |}, Tampico, Valles, San Luis Potosi, 
Chapala, Jalisco (Richardson "*), Valley of Mexico (Herrera"), Presidio de Mazatlan 
(Forrer “), Mazatlan (Grayson, Bischoff), Guanajuato (Dugés™*), Santa Ana in 
Vera Cruz (Ferrari-Perez®), Santa Ana, near Guadalajara, Jalisco (Lloyd), Jalapa 
(Sallé 3), Santa Efigenia 8, Lake Patzcuaro, Cosamaloapam, Tehuantepec, Tapana- 
tepec, Tonala (Sumichrast 15), Cozumel I. (Gaumer*); GUATEMALA, Lake of 
Peten (Leyland *, 0. S.11), Lake of Yzabal (0. S.), Duefias, Chiapam (0. S. & 
F. D. G.24). 
The Mexican Cormorant resembles P. vigua and apparently goes through similar 
ge, but it is not nearly so large; the bill, too, is very much smaller. 
changes of pluma 
mostly 
We have received several specimens from Texas, collected by Mr. Armstrong, 
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 #2. Herrera records the species from the Valley of Mexico’, 
20* 
