DOI: 10.5281/zenodo.15156987
title: APPENDIX 4 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

description: APPENDIX 4. — Measurements of teleoconch and protoconch of Alvania herosae n. sp. Morph B, in mm, with range, mean and standard deviation. 1-10, Australes, E Rapa of Tupuaki Bay, Stn 21, 5 m; 11-15, Australes, Rapa Akatamiro Bay Stn 94, intertidal; 16-18, Australes, SW Rapa of Pointe Gotenaonao Stn 27, 6 m; 19-20, Australes, Rapa Anatakuri Nako Bay Stn 25, 3 m.
Teleoconch Height Width Height/Width ratio Aperture height Height/aperture height ratio No. whorls No. axial ribs on last whorls No. spiral cords on last whorls (above aperture)1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Min-max 2.20 2.25 2.05 2.35 1.67 2.30 2.20 1.87 2.17 2.17 2.40 2.25 2.17 2.20 1.97 2.45 2.47 2.25 2.42 1.87 1.67-2.47 1.22 1.20 1.12 1.20 0.97 1.17 1.20 1.02 1.20 1.15 1.22 1.12 1.22 1.17 1.10 1.30 1.32 1.25 1.20 1.00 0.97-1.32 1.80 1.88 1.83 1.96 1.72 1.97 1.83 1.83 1.81 1.89 1.97 2.01 1.78 1.88 1.79 1.88 1.87 1.80 2.02 1.87 1.72-2.02 0.90 0.87 0.80 0.92 0.70 0.90 0.85 0.80 0.87 0.85 0.95 0.85 0.90 0.87 0.82 0.97 1.05 0.85 0.95 0.75 0.70-1.05 2.44 2.59 2.56 2.55 2.38 2.56 2.59 2.34 2.49 2.55 2.53 2.65 2.41 2.53 2.40 2.53 2.35 2.65 2.55 2.49 2.34-2.65 3.75 4.10 3.90 4.15 3.25 4.00 3.90 3.20 3.70 4.10 4.10 3.90 3.90 3.80 3.70 4.00 3.90 4.00 4.20 3.70 3.20-4.20 15 15 15 17 21 18 15 16 17 15 18 13 17 16 18 14 14 16 15 16 13-21 8(4) 9(4) 8(4) 10(5) 9(4) 8(4) 8(4) 8(4) 8(4) 8(4) 10(5) 8(4) 9(4) 8(4) 7(3) 8(4) 9(4) 8(4) 8(4) 8(4) 7-10 (3-5)Mean 2.18 1.17 1.87 0.87 2.51 3.9 16.05 8.3 (4.05)Std 0.209 0.092 0.080 0.079 0.091 0.27 1.82 0.75 (0.39)Protoconch1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 Min-maxMeanStdHeight Diameter of nucleus Diameter of first half whorl0.225 0.225 0.225 0.250 0.225 0.250 0.250 0.250 0.250 0.212 0.237 0.250 0.250 0.250 0.250 0.237 0.275 0.225 0.250 0.237 0.212-0.275 0.125 0.112 0.112 0.120 0.112 0.112 0.112 0.125 0.112 0.112 0.100 0.100 0.112 0.125 0.112 0.120 0.112 0.112 0.125 0.112 0.100-0.125 0.250 0.212 0.212 0.245 0.200 0.212 0.212 0.237 0.237 0.212 0.200 0.200 0.212 0.225 0.212 0.237 0.225 0.225 0.212 0.225 0.200-0.2500.241 0.114 0.2200.015 0.007 0.015Maximun diameter No. whorls Paucispiral0.325 0.312 0.300 0.312 0.287 0.300 0.300 0.300 0.325 0.275 0.287 0.325 0.312 0.300 0.300 0.312 0.325 0.300 0.275 0.300 0.275-0.325 1.15 1.20 1.20 1.20 1.20 1.20 1.30 1.20 1.25 1.20 1.20 1.20 1.25 1.25 1.25 1.20 1.25 1.20 1.25 1.20 1.15-1.30 yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes0.303 1.22 –0.015 0.033 –
description: Published as part of Amati, Bruno, Giulio, Andrea Di & Oliverio, Marco, 2023, 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, pp. 885 in Zoosystema 45 (25) on page 885, DOI: 10.5252/zoosystema2023v45a25, http://zenodo.org/record/10458066