APPENDIX 20 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

APPENDIX 20. — Measurements of teleoconch and protoconch of Simulamerelina micrometrica n. sp. in mm, with range,mean and standard deviation: 1, holotype, Australes, E of Rapa, 600-620 m; 2-4, Australes, Rimatara, 920-930 m; 5, Australes, Banc Arago, 120-180 m; 6-8, Australes, South coast of Rurutu, 520-950 m; 9, Australes, Tubuai, 470-800 m; 10, Australes, South coast of Rurutu, 520-950 m; 11, paratype, Australes, E of Rapa, 600-620 m.
Teleoconch1234567891011Min-maxMeanStdHeight1.331.531.521.531.371.531.231.271.271.631.501.23-1.631.430.137Width0.730.820.850.830.750.820.680.720.700.830.780.68-0.850.770.060Height/Width ratio1.821.871.791.841.831.871.811.761.811.931.921.76-1.931.840.053Aperture height0.500.600.600.630.530.620.480.500.500.630.570.48-0.630.560.059Height/aperture height ratio2.662.552.532.432.592.472.562.542.542.592.632.43-2.662.550.066No. whorls2.903.203.003.153.103.202.802.752.903.253.202.75-3.253.040.179No. axial ribs on last whorls181313142214242122151313-2417.24.31No. spiral cords on last whorls7(3)7(3)7(3)7(3)7(3)7(3)7(3)7(3)7(3)7(3)7(3)7(3)7 (3)0 (0)(above aperture)Protoconch1234567891011Min-maxMeanStdHeight0.2770.2670.2930.2830.2830.2670.2670.2670.2470.2670.3000.247-0.3000.2740.015Diameter of nucleus0.0830.0930.0830.0670.0670.0830.0670.0930.0830.0830.0620.062-0.0930.0790.011Diameter of first half whorl0.1670.1930.1830.1670.1670.1670.1670.2000.1670.1830.1700.167-0.2000.1760.012Maximun diameter0.2830.2830.2830.2830.2830.2930.2670.3000.2670.2930.2500.250-0.3000.2800.014No. whorls1.351.251.251.351.401.351.251.251.351.251.301.25-1.401.300.06Paucispiralyesyesyesyesyesyesyesyesyesyesyesyes––