186 



2844 O: Hemphilli. San Hippolito Point, Baja Cal. 



2845 O: ^Epynota. San Pedro. 



2846 O: turricula. San Pedro. 



0: terricula (No. 2561) is a misprint. 



2847 O: Americana. San Pedro 



2848 O: Eucosmia. Point Abreojos, Baja Cal. 



2849 O: amilda. San Diego. 



2850 O: farma. Catalina I. 



2851 O: enora. San Pedro. 



2852 O: fetella. San Diego. 



2853 O: esilda. San Diego. 



2854 O: herilda. San Diego. 



2855 O: nemo. San Diego. 



2856 O: Io. Santa Rosa I. 



2857 O: patroma. Santa Rosa I. 



2858 O: obesa. San Pedro. 



2859 O: phanella. San Pedro Sby. 



2860 O: Santa Rosana. Santa Rosa I. 



2861 O: donilla. San Pedro. 



2862 O: Californica. Ocean Beach, San Diego. 



2863 O: serilla. San Diego. 



2864 O: minutissima. San Diego. 



2865 O: Raymondi. Catalina I. 



2866 O: gravida. Santa Barbara. 



2867 O: notilla. Catalina I. 



2868 O: movilla. San Diego. 



2869 O: altina. San Diego. 



2870 O: profundicola. San Diego. 



2871 O: resina. Arch Beach. 



2872 O: deliciosa. Monterey. 



2873 O: lastra. Cal. 



2874 O: Farallonensis. Farallones Islands. 



2875 O: orcia. Santa Rosa I. 



2876 O: avellana. Neah bay, Wash. 



2877 O: moratora. Point Reyes. 



2878 O: nota. San Diego. 



2879 O: subturrita. San Pedro. 



2880 O: farella. Long Beach. 



2881 O: dinella. Redondo. 



2882 O: Coronadoensis. Coronado Beach. 



2883 Genus Pristiloma Ancey. 



Synonymy: — Pristina Ancey, and Anceyia Pilsbry (names pre- 

 occupied). 



Species: — Zonites lansingi and stearnsi Bland (Microphysa 

 Binney). 



2884 Zonites selenitoides Pilsbry. 



This species is similar in form and general appearance to Z. 

 minusculus Binn., tho decidedly larger. Umbilicus broad. Shell 

 thin, light yellowish-horn color, almost white. Surface shining, 

 covered with close strong oblique rib-striae, like Patula striatella; 

 these striae while generally regular, sometimes bifurcate, or sep- 

 arate to give room for another to be intercalated. Spire natter 

 than minusculus, nearly plane. The early 1 % to 2 whorls smooth, 

 polished, not striate; sutures well impressed. There are 3% 

 whorls in all, convex, gradually widening, the last proportionately 

 wider than in minusculus. Aperture slightly oblique, lunate, nar- 

 rower than in minusculus, its margins thin, acute, scarcely con- 



