TABLE OF COE"TE]^TS. 



Andrews, E. A. Sperm transfer in certain Decapods. — 



No. 1791. January 11, 1911« 419-434 



AsHWORTH, James Hartley. The Annelids of the family 

 ArenicohdaB of North and South America, including an 

 account of Arenicola glaciaHs Murdoch. — No. 1772. Sep- 

 tember 23, 1910« 1-32 



Bartsch, Paui.. Descriptions of new Mollusks of the fam- 

 ily VitruieUidse from the west coast of America. — No. 

 1785. Januaiy 9, 1911*^ 229-234 



New species: Cyclostrema baldridgel, C. 7niranda, C. adamsi, Cir- 

 culus liriope, C. diomedeae, Cydostremella dalli. 



. The recent and fossil Mollusks of the genus 



Alabma from the west coast of America. — No. 1790. 

 January 13, 1911« 409-418 



New species: Alahina barbarensis, A. hamlini, A. phanea, A. 



diomedese, A. ignati, A. io, A. monicensis. 

 New subspecies: Alahina tenuisculpta diegensis, A. t. phalacra. 



. The recent and fossil Mollusks of the genus 



Diastoma from the west coast of America. — No. 1802. 



February 15, 1911 « 581-584 



New species: Diastoma chrysalloidea, D. oldroydse, D. siearnsi. 



. The west American Mollusks of the genus Alaba. — 



No. 1781. October 25, 1910 « 153-156 



New species: Alaba jeannettse. 



. The west American Mollusks of the genus Eu- 



meta.— No. 1799. February 15, 191 1«_ 565-568 



New species: Eumeta eucosmia. 



Bassler, Ray S. Corynotrypa, a new genus of tubulipo- 



roid Bryozoa. — No. 1797. January 30, 1911« 497-527 



New genus: Corynotrypa. 



New species: Corynotrypa barberi, C. nitida, C. abrupta, C. eurta, 

 C. medialis, C. tennesseensis, C. schucherd. 



« Date of publication. 



Ill 



