CRYPTURUS. 459 
brunneis, fasciis transversalibus nigris vix distinctis; secundariis extus arenario et nigro fasciatis ; 
corpore subtus ut in C. boucardi colorato. Long. tota circa 10-5, ale 6-6, caude 1:6, culm. 1-0, tarsi 1-7. 
(Descr. maris adulti typici ex San Blas. Mus. nostr.) 
Hab. W. Mexico, San Blas, Tepic (Richardson 2), Mazatlan (Grayson). 
This is a western form of C. cinnamomeus, or rather of C. mexicanus, but is 
distinguishable by its greyish breast. The flanks are rufescent, with bars of brown, 
the upper surface being very faintly marked with wavy blackish bars on the lower back, 
rump, and upper tail-coverts, while the vermiculations on the wing-coverts are almost 
obsolete. The back of the neck and mantle are plumbeous brown, and the front of the 
neck and breast are shaded with grey, the throat being pure white. 
The type-specimen is probably not quite adult, as there are several spots of bright 
ochre on the greater coverts and secondaries. Mr. Nelson, however, confirms the 
distinctness of C. occidentalis, which he says inhabits low scrubby thickets of arid 
tropical districts. 
58* 
