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 Author Amati, Bruno Largo Giuseppe Veratti, 37 / D, I- 00146 Roma (Italy) bruno _ amati @ yahoo. it amati@yahoo.it Author Giulio, Andrea Di Dipartimento di Scienze, LIME Lab, Università “ Roma Tre ”, Viale Marconi, 446, I- 00146 Roma (Italy) and NBFC, National Biodiversity Future Center, Palermo I- 90133 (Italy) andrea. digiulio @ uniroma 3. it Author Oliverio, Marco Dipartimento di Biologia e Biotecnologie ‘ Charles Darwin’, Sapienza Università di Roma, Viale dell’Università 32, I- 00185 Roma (Italy) marco. oliverio @ uniroma 1. it text Zoosystema 2023 2023-12-22 45 25 803 892 https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2023v45a25.pdf journal article 283961 10.5252/zoosystema2023v45a25 6247b5e8-e434-4ff4-a408-d8ee87c09da7 1638-9387 10458066 054D312B-C54B-459D-8A47-AC9CB681D7D4

APPENDIX 7. — Measurements of teleoconch and protoconch of Alvania uapou n. sp. in mm, with range, mean and standard deviation: 1, holotype, Marquesas, Ua Pou, Motu Mokohe Stn 20, 10-15 m; 2-5, paratypes, Marquesas, Ua Pou, Motu Mokohe Stn 20, 10-15 m; 6-10, Society, Mont Otaha, 788-836 m.

Teleoconch	1	2	3	4	5	6	7	8	9	10	Min–max	Mean	Std
Height	1.70	1.72	1.65	1.57	1.72	1.60	1.75	1.72	1.82	1.62	1.57-1.82	1.69	0.076
Width	0.90	0.87	0.85	0.90	0.92	0.97	0.90	0.90	0.95	0.90	0.85-0.97	0.91	0.035
Height/Width ratio	1.89	1.98	1.94	1.71	1.87	1.65	1.94	1.91	1.92	1.80	1.65-1.98	1.86	0.108
Aperture height	0.60	0.65	0.60	0.60	0.62	0.62	0.60	0.65	0.65	0.65	0.60-0.65	0.62	0.024
Height/aperture height ratio 2.83		2.65	2.75	2.62	2.77	2.58	2.92	2.65	2.80	2.49	2.49-2.92	2.71	0.130
No. whorls	3.50	3.35	3.50	3.25	3.30	3.20	3.40	3.50	3.20	3.20	3.20-3.50	3.34	0.129
No. axial ribs on last whorls14		19	16	17	20	21	?	22	21	25	14-25	19.4	3.36
No. spiral cords on last	9 (4)	8(4)	8(4)	8(4)	8(4)	8(4)	9(4)	9(4)	9(4)	9(4)	8-9(4)	8.5 (4)	0.53 (0)
whorls (above aperture)
Start I	0.2	0.5	1	0.25	0.2	0.2	0.4	0.4	0.2	0.4	0.2-1	0.37	0.246
Protoconch	1	2	3	4	5	1	2	3	4	5	Min–max	Mean	Std
Height	0.250	0.237	0.262	0.237	0.237	0.275	0.275	0.275	0.287	0.282	0.237-0.287	0.262	0.019
Diameter of nucleus	0.100	0.100	0.100	0.100	0.100	0.120	0.112	0.120	0.125	0.125	0.100-0.125	0.110	0.011
Diameter of first half whorl	0.175	0.187	0.187	0.187	0.187	0.212	0.200	0.200	0.212	0.220	0.175-0.220	0.197	0.015
Maximun diameter	0.287	0.300	0.300	0.300	0.312	0.312	0.300	0.300	0.325	0.337	0.287-0.337	0.307	0.015
No. whorls	1.40	1.35	1.35	1.30	1.35	1.25	1.30	1.35	1.35	1.30	1.25-1.40	1.33	0.042
Paucispiral	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	–	–