The paleontology and stratigraphy of the marine Pliocene and Pleistocene of San Pedro, California

9781231248393: The paleontology and stratigraphy of the marine Pliocene and Pleistocene of San Pedro, California

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 Excerpt: ...(Arnold). Pliocene.--San Pedro (Arnold). Genus Bela Gray. Shell oval, fusiform, thin; spire produced; canal short; sinus small, near the suture; columella flattened; operculum pointed at both ends. Pleurotoma turricula Montf. is a characteristic species. 181. Bela fidicula Gould. Plate VII, Fig. 10. Fusus fidicula Gld., Proc. Bost. Soc. Nat. Hist., Vol. III, 1849, p. 142; Wilkes' Expl. Exped., Vol. XII, p. 233, fig. 284, 1852. Bela fidicula Gld., Cpr., Brit. Assn. Rept., 1863, p. 658. Tryon, Man. Conch., Vol. VI, p. 222, Pl. XXXII, fig. 17, 1884. Shell small, thin, turreted, short, fusiform; whorls seven, angular, forming a broad shoulder at the suture; surface sculptured with delicate, regular, obtuse, transverse rib-folds, about twenty-four on the last whorl, on the middle of which they disappear, decussated by more crowded, delicate grooves, a little undulating, about eight on the penultimate whorl; suture deeply impressed, distinct; aperture narrow, elliptical; outer lip thin, slightly arcuate; pillar smooth interiorly, spirally striate externally; canal short. Dimensions.--Long. 10 mm.; lat. 4.1 mm.; body-whorl 6.8 mm.; aperture 5 mm.; defl. 30 degrees. Found in Pliocene at Deadman Island, lower San Pedro series at Deadman Island, and upper San Pedro series at Crawfisb George's. Found also in the Pleistocene ( 27 ) March 14,1903. in bluff west of bath-house, Santa Barbara, and at old irrigating ditch, Ventura. The specimen figured is from the lower San Pedro series at Deadman Island, and is now in the collection of Delos Arnold. Living.--Puget Sound (Carpenter). Pleistocene.--San Pedro; Santa Barbara; Ventura (Arnold). Pliocene.--San Pedro (Arnold). 182. Bela sanctae-monicae, sp. nov. Plate VIII, Fig. 14. Shell small, broadly fusiform; spire elevated; ...

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