Page:American Seashells (1954).djvu/325

Subfa?nily FUSININAE Genus Fiisinus Rafinesque 1815 Fusinus thnessus Dall Turnip Spindle Plate I ig Gulf of Mexico. About 3 inches in length, solid, pure white, with a thin, gray periostra- cum. Aperture round with a flaring, raised parietal wall which, like the inside of the outer lip, is enamel-white and bears numerous spiral threads. Each whorl with i o to 12 low, short axial ribs at the periphery. Upper whorls with 8 to 9 small, but sharp and slightly wavy, smooth spiral cords. Last whorl and the long siphonal canal with a total of about 30 to 40 small cords between which is often a very fine one. Dredged uncommonly from 20 to 50 fathoms. Fusinus eucos7nius Dall Ornamented Spindle Plate lie; figure 22k Gulf of Mexico. 3 inches in length, with about 12 rounded whorls and with a small, roundish aperture located at the middle of the shell. Siphonal canal long, its diameter about equal to that of the aperture. Whorls with 8 large, rounded axial ribs which in the upper whorls are crossed by about 6 strong, sharp, slightly wavy spiral threads. Apex often leaning to one side. Color all white with a rather heavy, grayish-white to yellowish periostracum. Rather com- monly dredged offshore, but still a collector's item. Subgenus Barbarofusus Grabau and Shimer 1909 Fusinus harfordi Stearns Harford's Spindle Figure 54a Mendocino County, California. 2 inches in length, heavy, exterior dark, orange-brown, with 11 to 12 wide, rounded axial ribs crossed by small, sharply raised, finely scaled spiral cords. Rare in moderately deep water. Fusinus kobelti Dall Kobelt's Spindle Figure 54b Monterey to Catalina Island, California. 2 V2 inches in length, heavy, similar to harfordi, but with a longer siphonal canal, fewer and larger axial ribs (8 to 10 per whorl), colored white, except for several orange-brown spiral cords. Periostracum rather thick, opaque and light-brown. The spiral cords in harfordi are much larger and with squarish tops. Moderately common in shallow water to 3 5 fathoms.