PARUS. 561 
south to Gulf coast (including Florida and eastern and 
central Texas).. 731. P. bicolor (Linn.). Tufted Titmouse. 
e’. Paler, with forehead chestnut, light rusty brown, or smoky 
brown. Hab. Southeastern Texas (Bee and Bexar Counties). 
731a, B. bicolor texensis SENNETT. 
Texan Tufted Titmouse.’ 
a’. Forehead white or brownish (except along middle line); crest 
black, or dark brown (dull blackish or dusky brownish, tinged 
with gray, in young); length about 5.00-6.00. 
e. Smaller, with forehead white or pale smoky brown, crest and 
entire crown deep black in adult; gray of upper parts more 
tinged with olive; wing 2.70-3.05, tail 2.50-2.90. Eggs .74 
< .53. Hab. Eastern Mexico, north to south-central Texas. 
732. P. atricristatus Cass. Black-crested Titmouse. 
e*. Larger, with crest duller black, usually more or less mixed with 
gray and passing into uniform gray anteriorly, the forehead 
usually strongly tinged with rusty brown (sometimes almost 
chestnut) ; wing 2.95-3.12, tail 2.95-3.00. Hab. Southeastern 
Texas (Bee and Bexar Counties)...... —. P. atricristatus 
castaneifrons Sennerr. Chestnut-fronted Titmouse.’ 
b%. Top of head entirely gray or grayish brown; flanks grayish or olive-gray- 
ish, without rusty tinge. 
d', Lower parts whitish (the belly quite white), in marked contrast 
with color of upper parts. 
e. Above brownish; bill horn-grayish or plumbeous; length 
about 5.00-5. 60, wing 2.68-2.90 (2.77), tail 2.20-2.60 (2.40), 
culmen .38-.40 (.40), tarsus .80-.88 (.83). Hggs .68 x .52, 
plain white. Hab. Pacific coast of United States from 
southern California to Oregon. 
733. P. inornatus Gams. Plain Titmouse. 
e. Above ash-gray ; bill black; length about 5.25-5.75, wing 2.80, 
tail 2.40-2.55, culmen .38-.45, tarsus .75-.80. Hab. South- 
ern portion of Lower California. 
733). P. inornatus cineraceus Ripew. Ashy Titmouse. 
d@. Lower parts light grayish, not strongly contrasted with brown- 
ish gray of upper parts; length about 5.75-6.10, wing 2.80- 
1 Parus bicolor texensis SunnetT, Auk, iv. Jan. 1887, 29. (See foot-note under P. atricristatus castanei- 
Jfrons.) 
2 Parus'‘atricristatus castaneifrons Sennett, Auk, iv. Jan. 1887, 28. 
Having examined four specimens of this form, including the types, I am not satisfied as to its validity as 
a permanent form or subspecies. There is lacking that definite geographical area so essential to the existence 
of a geographical race in a non-migratory species; and, its pecutiarities being much the same as those charac- 
terizing the P. bicolor texensis of the same district, the probability of hybridism between P. bicolor and 
P. atricristatue is very strongly suggested. In fact, no two speciz\ens of either form are alike, in the series 
now before me, with which it is almost possible to make 9, series connecting the two species. 
wel 
