File:Report of the exploring expedition to the Rocky Mountains in the year 1842, and to Oregon and north California in the years 1843-44 (1845) (14597179137).jpg

Identifier: reportoftheexplor1845eng (find matches)
Title: Report of the exploring expedition to the Rocky Mountains in the year 1842, and to Oregon and north California in the years 1843-44
Year: 1845 (1840s)
Authors: Fremont, John Charles 1813-1890 United States Army. Corps of Engineers
Subjects: United States, West -- Description and travel United States Exploring expeditions
Publisher: Washington: Gales and Seaton, 1845
Contributing Library: Church History Library, The Church of Jesus Christ of Latter-day Saints
Digitizing Sponsor: Corporation of the Presiding Bishop, The Church of Jesus Christ of Latter-day Saints

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atrix, ithas been impossible to obtain a specimen exhibiting the mouth perfectly. Locality, same as the preceding. 18. Cerithium Fremonti. PI. 3, figs. 7, 7 a. (No. 28 of collection.)Description.—Shell terete, ovate, acute ; whorls, about nine, convex; summit of each one coronated; surface marked by regular rows of pustu-lar knobs, often with smaller ones between ; beak small, sharp; mouth notvisible in the specimen. This is a very beautifully marked shell, with the summit of each whorlcrowned with a row of short spines. Locality, same as the preceding. 19. Natica (?) occidentals. PI. 3, figs. 8, 8 a. (Nos. 16 and 21 ofcollection.) Description.—Depressed, conical, or sub-globose ; spire short, consistingof about five whorls, the last one comprising the greater part of the shell;aperture semi-oval, rounded at both extremities; umbilicus small. Surfacemarked by lines of growth. FOSSIL SHELLS ■ ■ - >r THI • ■ U Hit i\l SURVt NOllTH CALIFORNIA PL ///
Text Appearing After Image:
u 309 ( 174 ) There is a single perfect specimen and several casts of this delicate littleshell. The mouth is not entire, but enough remains to show that the lipwas a little expanded; but whether the columella covered a part of theumbilicus is uncertain. Locality in longitude 115°, latitude 43°, in a gray siliceous limestone. 20. TuRRITELLA BILINEATA. PI. 3, fig. 9. (No. 21 of Collection.) Description.—Elongated,subulate,spire rapidlyascending; whorls mark-ed by a double, elevated, spiral line, which is notched in the lower whorls. The specimen figured is imperfect, only the upper part of the shell remain-ing. Several casts of the same species occur in the specimens. Locality, same as the preceding. 21. Cerithium nodulosum. PI. 3, figs. 11 and 12. (Nos. 64, 6S, and 74,of collection.) Description.—Elongated, subulate; spire rapidly ascending; whorlsabout seven; the sutures marked by a spiral band ; surface of whorlsmarked by curved striae, or elevated lines, in the direction of t

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