NORTHWEST COAST MARINE SHELLBEARING MOLLUSKS. 85 
Superfamily RHACHIGLOSSA. 
(FISSIPEDIA.) 
Family OLIVIDAE. 
Genus OLIVELLA Swainson, 1840. 
OLIVELLA BIPLICATA Sowerby, 1825. 
Tankerville Cat., App., p. 33. — Tryon, Man., vol. 5, pi. 34, fig. 58. 
Vancouver Island to Magdalena Bay, Lower California. 
OUVELLA BIPLICATA LAPILLUS Vanatta, 1915. 
Nautilus, vol. 29, p. 71. — Sowerby, Thes., vol. 4, pi. 18, fig. 290. 
San Pedro, California. Sa^ 
OLIVELLA BOETICA Carpenter, 1864. (Plate 15, fig. l.> 
Suppl. Rep. Brit. Assoc., p. 651. 
Kodiak Island, Alaska, to Cape San Lucas. 
OLIVELLA PEDROANA Conrad, 1855. 
I’a ific R. R. Repts., vol. 5, pi. 6, fig. 51. — Tryon, Man., vol. 5, pi. 14, fig. 62. 
Puget Sound to Cape San Lucas. 
OLIVELLA PORTERI Dali, 1910. 
Nautilus, vol. 23, No. 12, p. 133. 
Redondo, California, to Magdalena Bay, Lower California. 
(SOLIDIPEDIA.) 
Family MARGINELLIDAE. 
Genus MARGINELLA Lamarck, 1799. 
MARGINELLA JEWETTII Carpenter, 1857. 
Proc. Zool. Soc., p. 207. — Tryon, Man., vol. 5, pi. 12, fig. 57. 
Monterey to Lower California, 
MARGINELLA SUBTRIGONA Carpenter, 1865. 
Ann. IVIag. Nat. Hist., ser. 3, vol. 15, p. 397. — Tryon, Man., vol. 5, pi. 12,, 
Monterey to San Diego, California. (Pt ^ 
MARGINELLA REGULARIS Carpenter, 1865. 
Ann. Mag. Nat. Hist., ser. 3, vol. 15, p. 
fig. 56. 
Monterey to Gulf of California. 
398. — Tryon, Man., vol. 5, pi. 12, 
Subgenus Hyalina Schumacher, 1817. 
HYALINA CALIFORNICA Tomlin, 1916. 
Nautilus, vol. 29, p. 138. — Arnold, Pal. San Pedro, pi. 4, fig. 9. 
San Pedro, California, to Puerto liibertad, Mexico. 
