THE NAUTILUS. 



35 



the Antarctic Mollusca. The dredgings were made along the 

 coast of Adelie Land in Commonwealth Bay and Davis Sea and 

 off Shackleton's Ice-shelf. Collections were also made at Mac- 

 quarie Island. Two new genera Ovirissoa and Friginatica and 

 forty-one new species and two varieties are described. Illustra- 

 ted by nine plates with excellent figures of the new species and 

 many of the other species from that region. 



Summary of the Mollusks of the Family Alectrionidae 

 of the West Coast of America. By W. TL Dall. Proc. U. 

 S. Nat, Mus. vol. 51, pages 575-579, 1917. Dr. Dall divides 

 the old genus Nassa, (a name first applied by Bolten to what 

 was later called lopas) from a conchological standpoint pending 

 anatomical researches, into two groups Arcidaria with a heavy 

 callus about the aperture and a hump on the back of the last 

 whorl and Alectrion for the reticulate species with little or no 

 callus, no hump, and simple or nearly simple outer lip. Eleven 

 new species included in the genera / hos ) Nassarina and Gouldia 

 are described. 



Terebridae of the Japanese Empire. By Y. Hirase. The 

 Hirase Museum 1917. Illustrated by 8 plates with 131 figures. 

 Except for an introductory letter by Marshall R. Gaines the 

 text is in Japanese, but with the excellent figures, explanation 

 to plates and bibliography, the work can be readily used by 

 Western students. 



Descriptions of New West American Marine Mollusks 

 and Notes on Previously Described Forms. By Paul Bartsch. 

 Proc. U. S. Nat. Mus., vol. 52, pages 637-681, plates 42-47. 

 May 1917. Fifty three new species are described, embraced 

 in the following genera: Pyramidella, Turbonilla, Odostomia, 

 Cerithiopsis, Bittium and Alvania. One new subgenus, Ugartea, 

 is proposed, the type being Turbonilla juani Bartsch. 



NOTES. 



A Sinistral Ampullaria. — In his recent review of the genus 

 Lanistes, (Proc. Mai. Soc. London, XII, p. 65), Sowerby re- 



