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in the open valley south of Diamante Pass." The breast and upper back of both specimens from 10 mi. NW San Lorenzo, are plumbeous-gray rather than pale dull gray. Also the lower back, rump, abdomen, forehead, and crown more closely resemble the subspecies _squamata_ rather than _C. s. pallida_. However, the upper backs of both specimens are not so plumbeous-gray as on a male (32030) and a female (32031) of the subspecies _squamata_ from 1 mi. N Chorro, Durango, 6450 ft., July 11, 1952. The two birds from Durango appear to be slightly darker than the Coahuilan specimens that approach the subspecies _pallida_. Burleigh and Lowery (1942:188-189) stated that one of their specimens of _C. s. squamata_ obtained at Saltillo seems to be "very close to _castanogastris_, suggesting that southeastern Coahuila is in the region of intergradation between the two races." Aldrich and Duvall (1955:17) indicated that _squamata_ and _castanogastris_ intergrade near Sabinas. The two specimens that I have examined show no sign of approach toward _castanogastris_. More specimens of Scaled Quail from Coahuila are needed to permit accurate definition of the distribution of the subspecies. *_Cyrtonyx montezumae mearnsi_ Nelson.--The Harlequin Quail is locally common in Coahuila; _C. m. mearnsi_ is present in northwestern Coahuila (Aldrich and Duvall, 1955:20). Miller (1955a:162) stated that an area in the head of Corte Madera Canyon of the Sierra del Carmen at 7500 feet was the principal location for _C. m. mearnsi_. He further suggested that the Harlequin Quail breeds in the Sierra del Carmen and remarked that Marsh took a male on September 7 at Jardin del Sur. He added that the occurrence of _C. m. montezumae_ in northern Coahuila as reported by Friedmann, Griscom, and Moore (1950:79) is "possibly an error or was based on individual dark variants...." Baker noted the Harlequin Quail (unidentified to subspecies) 9 mi. W and 1 mi. S Villa Acuna, 1120 feet, on April 4, 1950. *_Cyrtonyx montezumae montezumae_ (Vigors).--This subspecies of the Harlequin Quail has been recorded from southeastern Coahuila. Ridgway and Friedmann (1946:396) listed _C. m. montezumae_ from Saltillo. Baker saw a pair of Harlequin Quail (unidentified to subspecies) at San Antonio de las Alazanas on March 25, 1950. More collecting is necessary for an understanding of the distribution and intergradation of these subspecies in Coahuila. *_Meleagris gallopavo inte
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