All the University of Kansas specimens are typical of the larger subspecies _pallidior_. The dates (May 5, 10; June 15, 16, 22, 29) on which these specimens were collected, the sizes of the testes (9x6 mm.; 6x5 mm.; 7x3 mm.) of Nos. 32140, 31547, and 31546, respectively, and the size of the largest ovum (2.5 mm.) of No. 32142 indicate breeding by _P. c. pallidior_ in Coahuila. _Carpodacus cassinii_ Baird.--Cassin's Finch is an uncommon winter migrant in Coahuila. Miller, Friedmann, Griscom, and Moore (1957:314) listed _C. cassinii_ from Sierra Guadalupe. *_Carpodacus mexicanus potosinus_ Griscom.--_Specimens examined:_ total 8: [Male] 35417 from 13 mi. S, 5 mi. W Castillon, 4000 ft., June 28, 1953, testes, 6 mm., weight, 19 gms.; [Female] 35411 (skeleton only) from Sierra del Pino (=5 mi. W, 3 mi. S Acebuches), 6200 ft., May 14, 1954; [Male] 32145 from 5 mi. N, 19 mi. W Cuatro Cienegas, 3250 ft., July 5, 1952; [Male] 32144 and [Female] 32147 from 3 mi. S, 3 mi. E Bella Union, 6750 ft., June 27, 1952, [Male] gonads, 7 mm.; [Male] 32143 and [Female] 32146 from 7 mi. S, 4 mi. E Bella Union, 7200 ft., June 24, 1952; and [Male] 31675 from the west foot of Pico de Jimulco, 5000 ft., April 4, 1953, weight, 20 gms. The House Finch is common in Coahuila. Miller (1955a:174) reported a sparse population of this species in the foothills adjoining Boquillas Canyon at 4800 feet of the Sierra del Carmen and observed young just out of the nest on April 25. He remarked also that specimens of the House Finch from the Sierra del Carmen seem to show no intergradation toward _frontalis_. Burleigh and Lowery (1942:206) noted _C. m. potosinus_ at "Saltillo, in the desert country west of there, at the Chorro del Agua, and in the open valley south of Diamante Pass." Miller, Friedmann, Griscom, and Moore (1957:316) listed breeding by _C. m. potosinus_ at El Diamante on July 6. Dickerman also saw the House Finch at San Marcos on May 4, 1954, and Hardy saw it at Parras on July 4, 1955. No. 32147 had a distinct brood patch; the largest ovum of No. 32146 was 7 mm. in diameter. No. 32145 was a juvenile male. The University of Kansas specimens agree well with descriptions of _C. m. potosinus_ as given by Moore (1939:195). No approach toward _C. m. frontalis_, _centralis_, or _nigrescens_ is exhibited by any of these specimens. No. 31675, from Pico de Jimulco in southwestern Coahuila, is paler above and below than any other specimens of _C. m. potosinus_. Also the crown of No. 31675 is suffused with more red than in typical representatives of _C. m. potosinus_. **_Spinus pinus pinus_ (Wilson).--_Specimen examined:_ one, sex ? 33219 (skeleton only) from 13 mi. E San Antonio de las Alazanas, 9950 ft., July 6, 1955.