2 PROCEEDINGS OF THE NATIONAL. MUSEUM Vol.70 



Dr. I. S. Oldroyd, as usual, has contributed a large part of the 

 species here described: 



Melanella {Melanella) •portlandica from Portland, Oregon. 

 Odostomia {ChrysaZlida) cnmshewaensis from Cumshewa 



Inlet. 

 Gerithiopsis (Cerithiopsidella) fia from Monterey, California. 

 VitHnella {DocomphoZa) colwnbiana from Departure Bay. 

 Dr. Carl C. Engberg's careful collecting about Friday Harbor, 

 San Juan Island, and Olga, Washington, has brought to light large 

 series of previously rare species as well as a large number of new 

 species. They are: 



Odostomia {Amaura) sanjuanensis. 

 Odostomia {Amaura) washingtona. 

 Alvania sanjuanensis. 

 To Mr. A. G. Smith we owe the discovery of — 



TurhonUla {Pyrgolampros) Ufa at San Pedro. 

 Turbonilla {Pyrgiscus) delmontensis at Del Monte. 

 MargaHtes {? Lirularia) stnithi at Monterey. 

 Vitrinella smithi at Whites Point. 

 A. M. Strong and C. E. White have, through their careful study 

 of the habitats occupied by moUusks, made some splendid contribu- 

 tions to moUuscan ecology in an old territory. Their work shows 

 plainly that most of the fascinating field studies of moUusks and 

 their adjustments to suitable habitats have scarcely been touched. 

 We hope sincerely that they may continue their researches in this 

 much-neglected field. To them we owe the discovery of — 



Odostomia {Ghrysallida) catalinensis at Catalina Island. 

 Odostomia {Evalea) strongi at Catalina Island. 

 Odostomia {Evalea) whitei at Point Firmin. 

 Our indefatigable friend Mr. C. R. Orcutt has added : 

 TurhonUla {Ptycheulimella) magdalenensis and 

 Odostomia {Chrysallida) era from Magdalena Bay. 

 Odostomia {Ghrysallida) fla from Todos Santos, Lower Cali- 

 fornia. 

 To each of the following we are indebted for a new species: 

 Mrs. Carrie L. Simons, Amphithalamus stephensae from Magdalena 

 Bay, Lower California; Mr. E. P. Chace, Odostomia {Ghrysallida) 

 chacei from off Cayucas, California; and the late Mr. Delos Arnold 

 for Solariorhis amoldi from San Pedro. 



ASTTRIS CLEMENTENSIS, new species 



Plate 1, fig. 5 



Shell very small, elongate-ovate. Nuclear whorls flesh colored. 

 Postnuclear turns yellowish horn colored with various zigzag mark- 



