168 CALIFORNIA ACADEMY OF SCIENCES {Proc. 4TH Sen. 
“O. socorroensis,’ Los Coronados Islands 
No. Sex Wing Tail Fork of Culmen Tarsus Middle Toe 
Tail and Claw 
22421! of 157 80 20 16.7 22 23 
22422} of 147 75 20 16 22.2 22.5 
22426! rou 155 79 19 15.5 22.8 24 
22431 } rou 152 80 22 15.6 21.6 23.4 
22436! fof 162 81 22 16 23.5 24.1 
22443 } rot 158 78 21 15.5 22.5 23.3 
22447 } fot 154 80 20 17.5 22.1 22.8 
52462 ot 150 70 19 15 23 23.8 
5247 2 of 155 74 22 16.9 23 24 
5253? (ot 157 78 25 16.7 23 25.5 
52542 oO 149 73 22 15.3 22.4 23.8 
22423 1 9 164 81 20 16.9 23.2 25 
22428 3 9 156 80 22 16 23 23.3 
22442 ! 2 162 80 20 16.8 23.5 23.8 
5245 2 9 152 73 21 16 21.6 23.1 
5248 2 9 157 79 23 16.3 23 24.5 
52502 9 154 74. 23 15.8 21 24 
52512 9 155 76 19 16 22.2 25.4 
52522 Q 155 79 22 16 22 23.3 
52562 9 159 82 24 15.8 23 23.8 
Average.|...... 155 77 21 16.1 22.5 23.8 
1 Carnegie Museum, 
2 Coll. J. Grinnell. 
