vi SMITHSONIAN MISCELLANEOUS COLLECTIONS [ VOI ~ 5° 



Pagb 



Louis Agassis. Charles DoolittlE Walcott. Plate xxii. (Published 



September 12, 1907.) 216 



Terrestrial Isopods of the Family Bubelidce, collected in Liberia by Dr. 



O. F. Cook. Harriet Richardson. (Published September 12, 1907.) . 219 

 The Relations of the Chinese to the Philippine Islands. Berthold Laufer. 



(Published September 13, 1907-) 2 4 8 



Notes 28 5 



Excavations at Casa Grande, Arizona, in 1906-07. J. Walter FewkES. 



Plates xxiii-xl. (Published October 25, 1907O 2 &9 



Nopalea guatemalensis, a New Cactus from Guatemala. J. N. Rose. 



Plates xli, xlii. ( Published October 28, 1907O 330 



Pereskiopsis, a New Genus of Cactacece. N. L. Britton and J. N. Rose. 



Plates xliii, xliv. (Published October 28, 1907.) 33* 



Two New Ferns of the Genus Lindsaea. LuciEN M. Underwood and 



William R. Maxon. (Published October 28, 1907O 335 



Five New Recent Crinoids from the North Pacific Ocean. Austin 



Hobart Clark. (Published October 29, 1907.) 337 



Nezv Genera of Recent Free Crinoids. Austin Hobart Clark. (Pub- 

 lished October 29, 1907.) 343 



The Air-sacs of the Pigeon. Bruno MullER. (Hodgkins Fund.) Plates 



xlv-xlix. (Published January 16, 1908.) 365 



Notes 415 



Nezv and Characteristic Species of Fossil Mollusks from the Oil-bearing 



Tertiary Formations of Santa Barbara County, California. Ralph 



Arnold. (Published December 13, 1907.) Plates l-lviii 4 J 9 



On the Occurrence of Remains of Fossil Cetaceans of the Genus Schizo- 



delphis in the United States, and on Priscodelphinus (?) crassangu- 



lum Case. Frederick W. True. Plates lix-lx. (Published January 



27, 1908.) 449 



The Meteor Crater of Canyon Diablo, Arizona; its History, Origin, and 



Associated Meteoric Irons. George P. Merrill. Plates lxi-lxxv. 



(Published January 27, 1908.) 461 



Notes on Gonidea angulata Lea, a Fresh-water Bivalve, zvith Description 



of a New Variety. William H. Dall. (Published January 28, 1908.) 499 

 A New Species of Cavolina, zvith Notes on Other Pteropods. William H. 



Dall. (Published January 28, 1908.) 501 



A Preliminary Treatment of the Opuntioideae of North America. N. L. 



Britton and J. N. Rose. (Published February 20, 1908.) 503 



Observations on the Mosquitoes of Saskatchezvan. Frederick Knab. 



( Published February 20, 1908. ) 540 



Notes 548 



