— G5 — 



The IMautilus, a quârterly devoteid Lo t'he interests 

 ,, r ConcholO'gists. Editors : H. A. Pilsbry ami C. W. 

 Johnson. 



Vol. XXXIV, n° 3. January 11)21. 



Contents : Bryant Walker. Ancylus obscurus Heldeman 

 and speeies refarred lo it {'Continued) [Ferrissia jamaicen- 

 sis, F. Adamsi, F. Blandi, nn. spp.] (PI. III. — Wm; H. Dall. 

 Two ne-w Pliocène Pectens from Nome Alaska [Pecten (Pla- 

 gioctêriium Ealtie, P. Patinopecten) rhytidus nn. spp.]. — 

 OlofO. Nylander. The type localisas of Lymnsea emargi- 

 nata Say and L. ampla Mighels. — N. M. Grier. Notes on 

 th.- Naiad t'auna of the Upper Mississipi River. — A. E. 

 Ortmann. The anatonry of certain Musse'ls from the Upper 

 Tennessee. — <i. Dallas Hanna. Modiolu.s demissus Dillwin, 

 in San Francisco Bay. — Ida S. Oldroyd. A new Peruvian 

 Chione [C. meridionalis n. sp.] (PI. IV). - E. G. Vanatta. 

 Land Shells of Southern Florida. — James Shepard. The 

 Leaping Razor Shell. — Wm. H. Dall. Speeies named in the 

 Portlamd Catalogue : I, American. — Lillian Dyer Thomp- 

 son. Collecting al Nahanl Beach, Mass. -- H. A. Pilsbry. 

 William Wilder (Obifcuary . -- T. D. A. Gockerell. The 

 Lands Mollusks of the Belgian Congo,'— Notes : D. Thaa- 

 m m. Tapes Philippinarum in tlu> Hawaiian Islands; — G. H. 

 Clapp, Land îShells of Chokoloskee Key and Cape Sahle, 

 Florida. 



Vol. XXXIV, n" ï, April 1921. 



Contents : H. A. Pilsbry and C. Montague Cooke. A new 

 Achatinella from Oahu [A. lehuiensis Meineckei n. subsp;]— 

 Wm. II. Meinecke. Hunting Achatinella Meineckei and P«r- 

 tulina dubia in the Waianae Mountains, Oahu. — 'l\ D. A. 

 Cogkerell; Notes on Craspedopoma lucidum Lowe and other 

 Madeira Snails. - T- S. Oldroyd. New Pleistoeene Mol- 

 lusks from Galifornia [Anachis minuta, Epitonium Clarki, 

 Tegvla Hemphilli, Clathrodrillia diegensis, Verm.etus nodo- 

 sus, Tàrnatina tumida, nn. spp., Conus californiens fossilis 

 n. var.] (PI. V . — T. S. Oldroyd. Some variées oï W.-- 



