60 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
whorls, axially undulate by the prolongations of the ribs across the feeble 
sulcus to the suture; axial sculpture of numerous, nearly vertical, low, 
narrow riblets with wider interspaces, proportionately less marked on the 
last whorl; these are crossed without modulation by three, obscure, flattish, 
spiral bands, with one or two narrower and more thread-like, and on the 
base of the last whorl six or seven more feeble spirals of the same sort, 
all with narrower, feebly channeled interspaces; aperture narrow behind 
a thin callus and anterior keel on the pillar; outer lip thin, sharp; canal 
very short, recurved, bordered by a prominent sharp keel on the posterior 
edge of the siphonal fasciole, hardly visible on the pillar but perceptible 
within the whorls; color bluish-white with irregular blotches of yellowish- 
brown, or all brownish. Long, of (decollate) shell, 32; of last whorl, 12; 
of aperture, 8; max. diam., 6.5 mm. (Dali.) 
Type in United States National Museum, Nos. 118806 and 32772. 
Type locality, San Pedro, California. 
Range. San Pedro to San Diego, California. 
Terebra pedroana philippiana Dali, 1920 
Annals and Magasitic of Natural History, ser. 3, 15:395. 
M. testa rufo-cinerea, minore, minus terti, epidermide tenui; anfr. xii., 
planatis ; fascia suturali valida, nodosa, tuberculis ovalibus crebris validiori- 
bus (anfr. penult, circa xv.) ornata; testa adolescente costulis radiantibus, 
postea evanescentibus; striolis antice et postice spiralibus, circa peripheriam 
saepe obsoletis; basi rotundata; canali brevissimo, alte emarginato; carina 
supra canalem acuta, columellam plicate; labro acuto, vix undato. (Car¬ 
penter.) 
Type in British Museum. Type locality, Santa Barbara, California. 
Range. Santa Barbara, California, to head of Gulf of California. 
This is Terebra simplex Carpenter, 1865, not of Conrad, 1830. 
Family CONIDAE 
Genus CONUS Linnaeus, 1758 
Testa univalvis, convuluta, turbinata. Apertura eflfusa, longitudinalis, 
linearis, edentula, basi integra, columella laevis. (Linnaeus.) 
Shell thick, obconic, whorls enrolled upon themselves, the spire short, 
or not elevated, smooth or tuberculated; aperture elongated, narrow, the 
margins parallel, truncated at the base; the outer lip with a slight sutural 
sinus. (Tryon, Structural and Systematic Coneirology.) 
