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APPENDIX 14 in Shallow-water Rissoidae of the genera Alvania Risso 1826 Haurakia Iredale 1915 Parashiela Laseron 1956 Simulamerelina Ponder 1985 and Subestea Cotton 1944 Gastropoda Caenogastropoda Rissooidea from French Polynesia with the description of a new deep-water genus

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APPENDIX 14. — Measurements of teleoconch and protoconch of Parashiela rotundata n. sp. in mm, with range,mean and standard deviation: 1, holotype,Society, Tahiti, Arue, of Matavai Bay, 16-25 m; 2-10, paratypes, Society, Tahiti, Arue of Matavai Bay, 16-25 m. Teleoconch12345678910Min-maxMeanStdHeight1.100.961.101.171.071.061.061.050.940.810.81-1.171.030.103Width0.770.670.750.800.740.740.750.720.670.640.64-0.800.730.050Height/Width ratio1.431.431.471.461.451.431.411.461.401.271.27-1.471.420.058Aperture height0.500.440.470.520.470.490.470.470.410.400.40-0.520.460.038Height/aperture height ratio2.202.182.342.252.282.162.262.232.292.032.03-2.342.220.087No. whorls2.752.502.752.802.702.602.602.652.602.002.00-2.802.590.228No. axial ribs on last whorls263428?27?3126282726-3428.42.77No. spiral cords on first whorlsnonononononononononono––Protoconch12345678910Min-maxMeanStdHeight0.1620.1870.1870.1870.1620.1750.1620.1750.1620.1750.162-0.1870.1730.011Diameter of nucleus0.0620.0700.0750.0750.0750.0700.0700.0620.0620.0620.062-0.0750.0680.006Diameter of first half whorl0.1370.1450.1500.1370.1450.1500.1250.1370.1250.1250.125-0.1500.1380.009Maximun diameter0.2620.2500.2500.2500.2500.2620.2370.2500.2500.2500.237-0.2620.2510.007No. whorls1.351.301.351.301.351.351.301.401.351.401.30-1.401.350.037Mulstispiralyesyesyesyesyesyesyesyesyesyesyes––
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2025-04-05
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