Pleiocene Fossils of South-Carolina; Containing Descriptions and Figures of the Polyparia, Echinodermata and Mollusca

Pleiocene Fossils of South-Carolina; Containing Descriptions and Figures of the Polyparia, Echinodermata and Mollusca

By (author) 

List price: US$14.14

Currently unavailable

Add to wishlist

AbeBooks may have this title (opens in new window).

Try AbeBooks

Description

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...show more

Product details

  • Paperback | 44 pages
  • 189 x 246 x 2mm | 95g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236487362
  • 9781236487360