Deep-water Rissoidae of the genera Benthonella Dall, 1889 and Benthonellania Lozouet, 1990 (Gastropoda, Caenogastropoda, Rissooidea) from French Polynesia Author Amati, Bruno Largo Giuseppe Veratti, 37 / D, 00146 Roma (Italy) bruno_amati@yahoo.it Author Giulio, Andrea Di Dipartimento di Scienze, Università “ Roma Tre ”, Viale Marconi, 446, 00146 Roma (Italy) & Laboratorio Interdipartimentale di Microscopia Elettronica (LIME), Università “ Roma Tre ”, Roma (Italy) andrea.digiulio@uniroma3.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@uniroma1.it text Zoosystema 2022 2022-06-28 44 12 335 389 journal article 89521 10.5252/zoosystema2022v44a12 7ccbafc8-5635-41f4-a7da-05f303b9bb8e 1638-9387 6794846 urn:lsid:zoobank.org:pub:ECBC345E-3870-4935-B430-744969F3DFD4

APPENDIX 8. — Measurements of teleoconch and protoconch of Benthonellania bouteti n. sp. in mm, with range, mean and standard deviation: 1, holotype, Society Islands, Moorea, 660-680 m depth; 2-7, paratypes, Society Islands, Moorea, 660-680 m depth; 8-17, Australes: East of Rapa, 600-620 m depth.

Teleoconch	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	Min–max	Mean	Std
Heigth Width Height/Width ratio Aperture heigth Height/Height aperture ratio Height last whorl Height/Height last whorl ratio No. of whorls No. axial ribs on last	3.45 1.90 1.816 1.40 2.464 2.30 1.500 4 15	3.40 1.90 1.789 1.30 2.615 2.20 1.545 4 15	3.25 1.85 1.757 1.25 2.600 2.10 1.547 3.8 15	2.92 1.65 1.770 1.15 2.539 1.87 1.561 3.75 12	3.10 1.80 1.722 1.10 2.818 1.95 1.590 3.9 14	3.07 1.85 1.660 1.15 2.670 2.0 1.535 3.7 16	2.95 1.75 1.686 1.15 2.565 1.92 1.536 3.5 14	4.15 2.20 1.886 1.42 2.955 2.32 1.789 5.2 23	3.75 2.07 1.811 1.30 2.884 2.15 1.744 4.9 20	3.65 2.0 1.825 1.30 2.808 2.15 1.698 4.7 19	3.90 2.17 1.797 1.40 2.786 2.32 1.681 4.75 17	3.80 2.10 1.809 1.32 2.879 2.20 1.727 4.75 16	3.40 1.80 1.888 1.20 2.833 2.02 1.683 4.5 16	3.45 1.80 1.917 1.20 2.875 2.05 1.683 4.5 17	3.67 2.05 1.790 1.20 3.058 2.07 1.773 5 18	3.67 2.02 1.817 1.37 2.679 2.25 1.631 4.5 20	3.82 2.0 1.910 1.32 2.894 2.25 1.698 5 20	2.92–4.15 1.65–2.20 1.660–1.917 1.10–1.42 2.464–3.058 1.87–2.32 1.500–1.773 3.5–5.2 12–23	3.494118 1.935882 1.802941 1.266471 2.760118 2.124706 1.642412 4.379412 16.88235	0.352528 0.155485 0.072376 0.100308 0.164884 0.142308 0.092945 0.537372 2.803622
whorl No. spiral cords on last	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	–	–
whorl Varix Umbilical false chink	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	no yes	–	–
Protoconch	1	2	3	4	5	6	7	1	2	3	4	5	6	7	8	9	10	Min–max	Mean	Std
Heigth Diameter of nucleus Diameter of first half	0.325 0.075 0.150	0.325 0.095 0.152	0.375 0.100 0.160	0.375 0.087 0.150	0.350 0.087 0.162	0.345 0.075 0.145	0.375 0.077 0.150	0.325 0.100 0.170	0.325 0.070 0.170	0.375 0.087 0.170	0.370 0.095 0.170	0.375 0.082 0.135	0.325 0.070 0.145	0.340 0.095 0.162	0.325 0.095 0.162	0.375 0.087 0.175	0.325 0.087 0.162	0.325–0.375 0.070–0.100 0.135–0.175	0.348824 0.086118 0.158235	0.02322 0.009911 0.011256
whorl Maximum diameter No. of whorls Multispiral Paucispiral	0.400 2.5 yes no	0.400 2.35 yes no	0.437 2.5 yes no	0.400 2.45 yes no	0.400 2.35 yes no	0.420 2.6 yes no	0.425 2.6 yes no	0.375 2.25 yes no	0.370 2.25 yes no	0.400 2.2 yes no	0.387 2.3 yes no	0.400 2.25 yes no	0.375 2.3 yes no	0.387 2.3 yes no	0.350 2.25 yes no	0.387 2.3 yes no	0.387 2.25 yes no	0.350–0.437 2.2–2.6 yes no	0.394118 2.352941 – –	0.021112 0.128051 – –