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Species / Antarctohoges Arcuacheilus


Original description of Arrhoges (Antarctohoges) arcuacheilus by Stilwell and Zinsmeister, 1992:

  • "Shell small- to medium-sized, moderately thick, moderately high-spired, turriform; spire consisting of seven whorls; whorls rounded, convex; suture slightly impressed; protoconch conical; body whorl rounded, convex, slightly expanded with approximately 15 to 20 moderately strong, equally spaced, slightly sinuous, axial ribs and numerous, evenly spaced spiral threads; body whorl vaguely encroaching upon the penultimate whorl; whorls of spire ornamented as in the body whorl with approximately 15 slightly stronger, slanted, axial ribs and numerous spiral threads; aperture moderately large, subovate, siphonostomatous; outer lip rounded, expanded, and thickened; very short siphonal canal not affecting rounded shape of aperture; moderately thick inductura"

Locus typicus: Northern part of Seymour Island, James Ross Island group, Antarctic Peninsula, Antarctica

Stratum typicum: La Meseta Formation, Eocene


  • Stilwell, J. D., & W. J. Zinsmeister (1992), Molluscan Systematics and Biostratigraphy: Lower Tertiary La Meseta Formation, Seymour Island, Antartic Peninsula, Antarct. Res. Ser., vol. 55, 192 pp., AGU, Washington, D. C.

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