40 THE NAUTILUS. 



sioDS which may well be remedied. The following corrections should 

 be made: 



June No., p. 18, near top. SOIi. species were listed; not 39 J^. 



P. 18, near bottom of page. " TerehratuUna " transversa is a 

 misprint for " Terehratalia." 



P. 19. The identification of Barbatia gradata is a very doubtful 

 one and the species should probably be removed from the list. 



July No., p. 35. " Cregires " albopunctatus should be Aegires. 



Aug. No., p. 43. Odostomia (^Ividea) navisa should be changed 

 to 0. {Ividid) navisa delmontensis, Dall & Bartsch. New subsp. 



P. 43. " Triforis adversus " is not this species but an undeter- 

 mined form. 



P. 43. ^''Seila assimilata C. B. Adams " was identified according 

 to the common misconception of that tropical species. My speci- 

 mens should be listed as '■'■Seila montereyensis Bartsch," n. sp. One 

 of the co-types came from this lot. 



P. 44. ^'Hissoina " purpurea is a JRissoa. 



Sept. No., p. .52, near end of article. Should read as follows: 

 "... of Scala (?^^ne species), and of the Pyramidellidae ^eighteen 

 species)," etc. This last figure includes the additional forms enum- 

 erated below. 



The following species and varieties have been determined from the 

 same lot of material since the publication of the main report : 



Adula stylina Carpenter. 12 fathoms; not rare with the other 

 borers in the hard mud. 



Cadulus quadrifissatus Carpenter. 12 fms.; one specimen. 



Aciaeon punctocaelatus Carpenter. 12 fms.; young specimens 

 only. 



Epiphragmophora sequoicola J. G. Cooper. Big Trees Station, 

 near Santa Cruz ; one immature specimen. 



Epiphragmophora arrosa Gould. Big Trees Station, near Santa 

 Cruz ; several examples. 



Epiphragmophora exarata Pfeiffer. Near Santa Cruz. Speci- 

 mens were also seen from various localities in the Santa Cruz moun- 

 tains and from Watsonville. 



Epiphragmophora califomiensis nickliniana Lea. Big Trees Sta- 

 tion, near Santa Cruz. 



Polygyra columbiana Lea. Big Trees Station, near Santa Cruz. 



Polygyra columbiana armigera Ancey. One specimen found a 

 few miles south of Pacific Grove in the pine woods. 



