CHORDEILES. 397 
not satisfactory, and we think any attempt to recognize the variations of this species 
by names will not in the end simplify matters. 
It is somewhat surprising that we know so little of C. virginianus in its southern 
winter-quarters ; our records of it beyond Mexico are few and far between, though they 
extend over a vast extent of the southern continent, even as far as Patagonia ! 
C. virginianus lays its eggs in open situations on the ground and on rocks, and even 
on the flat roofs of houses. The eggs, two in number, are of the oval shape usual in 
this family ; the ground is of various shades of stone-colour, with slaty and yellowish- 
brown markings diffused over the whole surface. 
2. Chordeiles texensis. | 
Chordeiles texensis, Lawr. Ann. lyc. N. Y. vi. p. 1677; ix. pp. 1207, 204°; Mem. Bost. Soc. N. H. 
ii. p. 291*; Bull. U. S. Nat. Mus. no. 4, p. 31’; Scl. P. Z. S. 1866, p. 184°; Sumichrast, 
La Nat. v. p. 2497; Boucard, P.Z. S. 1883, p. 451°; Ridgw. Pr. U.S. Nat. Mus. x. p. 581° ; 
Salv. Ibis, 1889, p. 8368"°; Cherrie, Auk, 1892, p. 824"; Hartert, Cat. Birds Brit. Mus. 
xvi. p. 616. 
Chordeiles acutipennis, var. texensis, Baird, Brew., and Ridgw. B. N. Am. ii. p. 406”. 
Chordeiles brasilianus, Cab. J. £. Orn. 1862, p. 165“; v. Frantz. J. f. Orn. 1869, p. 314”. 
Supra niger undique cervino et griseo albido variegatus, capite summo colore nigro magis obvio, superciliis 
indistinctis albidis, tectricibus alarum maculis rotundis albidis ornatis; cauda nigro fasciata, area inter 
fascias griseo variegato: subtus gule lateribus nigro et cervino variegatis, gula macula triangulari magna 
alba, pectore summo nigricante fulvo intermixto, imo griseo irrorato, abdomine et tectricibus subalaribus 
cervinis nigro regulariter transfasciatis; alis primariis quatuor externis macula magna mediana alba, 
primariis internis et tectricibus majoribus fulvo transversim maculatis; cauda infra nigra, in pogonio 
interno cervino late fasciata, fascia subterminali alba et pogonio externo albo maculato. Long. tota 
circa 9°0, alee 7:2, caudee rectr. med. 3:9, rectr. lat. 4:5, tarsi 0°55, dig. med. cum ungue 0°72. (Descr. 
maris ex Duenas, Guatemala. Mus. nostr.) 
Q mari similis, macula gulari cervino, maculis remigum quoque cervinis, et macula caudali subterminali nulla 
distinguenda. 
Hab. Nortu America, Soutbern frontier States 1°.—Mexico, San Antonio, San Pedro, San 
Agustin, Monte Morelos in Nuevo Leon (Ff. B. Armstrong), Altamira and Xicotencal 
in Tamaulipas (W. B. Richardson'?), Mexicalcingo!*, Coapa??, Culhuacan, 
Chimalpa in the valley of Mexico (f/. Ferrari-Perez), Atotonilco, San Baltazar 
in Pueblal!? (F. F.-P.), Sierra de Alamos!? (W. Lloyd), Mazatlan (Grayson ‘, 
Forrer 2), San Blas (Grayson*), Santana near Guadalajara (W. Lloyd”), Plains 
of Colima (W. B. Richardson '*), Juchatengo (M. Trujillo”), San Mateo, Sta. 
Efigenia (Sumichrast >"), Tonala (W. B. Richardson”), N. Yucatan ®, Cozumel I.'° 
(G. F. Gaumer), Merida (Schott*); GuatemaLa, Duenas, San Geronimo , Coban 
(0. S.& F. D.G.); Hoxptras, Ruatan I. (G. 2. Gaumer '°), Trujillo (Townsend °) ; 
Nicaracua, Realejo (0. 8.12); Costa Rica, Rio Tirribi (Zeledon?), San José 
(Cherrie 1); Panama, Veraguas (Arcé). 
Chordeiles texensis is a northern form of the South-American C. acutipennis, from 
