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. 1857 edition. Excerpt: ...p. 41, pl. 20, fig. 4. A. testa sub-trigona, in quilateralis; umbonibus depressis, recurvis, sulcatis; sulcis irregularibus, latissimis. Description. Shell somewhat triangular, inequilateral; umbones flat, recurved, furrowed; furrows irregular, very wide. The broad furrows on the umbones of this shell ...
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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. 1857 edition. Excerpt: ...p. 41, pl. 20, fig. 4. A. testa sub-trigona, in quilateralis; umbonibus depressis, recurvis, sulcatis; sulcis irregularibus, latissimis. Description. Shell somewhat triangular, inequilateral; umbones flat, recurved, furrowed; furrows irregular, very wide. The broad furrows on the umbones of this shell distinguish it from the other species. The furrows vary in number, and sometimes almost cover the valves; but this is rare. The sudden curvature of the umbones gives the buccal slope a gibbous outline, and this character is preserved in all the varieties. Plate XX. Fig. 1, represents a common variety. "2, Another variety, natural size. Locality. Sumter District. A S TARTE CONCENTRICA. Plate XX. Fig. 3. Astarte concentrica, Con., Jour. Ac. Nat. Sci., Vol. 7, p. 133. Astarte concentrica, Con., Foss. Ter. For., p. 44, pl. 21, fig. 6. A. testa trigona, depressa, sub-equilateralis, concentrice sulcata; sulcis regulat ious; umbonibus acutis, recurvis; marginc tenui crenato. Description. Shell triangular, depressed, nearly equilateral, concentrically furrowed, furrows regular; umbones acute, recurved; margin crenate. This species is the most constant in form of this variable genus; but it is readily distinguished by the regular and closely arranged furrows which cover the entire shell. Plate XX. Fig. 3, Interior of right and exterior of left valve, natural size. Locality. Waccamaw. Museum, College of Charleston. ASTARTE L U N D LATA.--Con. Plate XX. Fig. 4. Astarte lunulata, Con., Foss. Ter. For., p. 44, pl. 21, fig. 8. A. testa parva, depressa, sub-trigona, concentrice sulcata; latere buccali truncate; latere anali sub-angulato. Description. Shell small, flat, somewhat angular, concentrically furrowed; buccal margin truncated; anal margin...
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Publisher:
Paleontological Research Institute [PRI]
Published:
1974
Language:
English
Alibris ID:
16408662247
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Seller's Description:
VG. Not ex-lib. Softcover in light tannish-grey wraps, 4to. Facsimile reprint of 1857 edition. 152pp. + album of 30 plates with facing descriptions. VG. Mild rubbing to overall clean wraps, stronger along outer edges with mild foxing; 1 1/4" quarter-circular dampstain upper corner rear wrap with mild discoloration and no other effects. Binding strong and square though front wrap pulled back (no separation). Pages clean and unmarked. A heavy item: non-U.S. shipping may require extra fees; please inquire.
