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

TABLE 1. — Measurements of teleoconch and protoconch of the studied species in mm, with minimum-maximum range and mean [standard deviation in square parentheses]. Sample size in parentheses with the species name. Symbols: +, present; –, absent; M, multispiral; P, paucispiral.

	Benthonella basistriata n. sp. (10) Benthonella boucheti n. sp. (2) Benthonella communis n. sp. (20) Benthonellania aequatorialis (Thiele, 1925) n. comb. (2) Benthonellania africana (Thiele, 1925) n. comb. (4) Benthonellania alis n. sp. (10) Benthonellania bouteti n. sp. (17) Benthonellania hertzogi (Thiele, 1925) n. comb. (2) Benthonellania lozoueti n. sp.(10) Benthonellania maestratii n. sp . (3) Benthonellania megan n. sp. (6) Benthonellania tarava n. sp. (20 ) Benthonellania thielei n. sp . (4) Benthonellania tuamotu n. sp. (10)
Teleoconch
Height	3.6-4.95 4.21 [0.43]	2.55-3.20 2.67-3.75 2.40-2.70 2.50-3.12 2.35-4.45 2.47-2.85 2.94 3.16 2.56 2.80 3.62 2.66 [0.27] [0.29] [0.10] [0.31] [0.57] [0.27]						2.92-4.15 3.05-4.0 3.35-4 3.49 3.5 3.72 [0.35] [0.27] [0.27]			1.80-1.95 1.27-2.40 3.75-4.32 1.95-2.60 1.87 2.04 4.03 2.30 [0.10] [0.31] [0.40] [0.24]
Width	2.15-2.77 1.82-2.05 1.55-1.92 1.47-1.60 1.62-2.07 1.60-2.75 1.75-1.95 2.49 1.93 1.72 1.53 1.85 2.30 1.85 [0.19] [0.09] [0.12] [0.06] [0.23] [0.34] [0.14]							1.65-2.20 1.75-2.20 2.02-2.35 1.93 1.96 2.17 [0.15] [0.14] [0.13]			1.35-1.37 0.92-1.60 2.60-2.75 1.30-1.62 1.36 1.342 2.67 1.46 [0.01] [0.17] [0.10] [0.12]
Height/Width ratio	1.625-1.787 1.401-1.588 1.706-1.953 1.594-1.733 1.507-1.538 1.468-1.674 1.411-1.461 1.660-1.917 1.725-1.875 1.574-1.860 1.333-1.423 1.380-1.606 1.442-1.572 1.477-1.677 1.688 1.518 1.833 1.662 1.519 1.572 1.436 1.803 1.790 1.720 1.378 1.5155 1.507 1.56 [0.064] [0.082] [0.071] [0.062] [0.016] [0.073] [0.035] [0.072] [0.049] [0.129] [0.064] [0.057] [0.092] [0.058]
Aperture height	1.5-2.0 1.73 [0.18]	1.20-1.35 1.0-1.27 1.0-1.10 1.28 1.12 1.04 [0.06] [0.11] [0.04]			1.10-1.35 1.17-1.90 1.25-1.40 1.25 1.59 1.32 [0.13] [0.22] [0.106]			1.10-1.42 1.10-1.45 1.25-1.55 1.27 1.29 1.42 [0.10] [0.11] [0.13]			1.0-1.02 0.57-1.02 1.90-2.0 1.01 0.86 2.05 [0.01] [0.11] [0.07]		0.82-1.07 0.95 [0.08]
Height/Height aperture ratio	2.250-2.687 2.125-2.461 2.670-3.045 2.400-2.500 2.154-2.311 2.008-2.500 1.976-2.036 2.464-3.058 2.590-2.800 2.466-2.857 1.800-1.911 2.028-2.633 1.983-2.162 2.241-2.600 2.440 2.296 2.822 2.451 2.246 2.267 2.006 2.760 2.716 2.621 1.855 2.3472 2.067 2.41 [0.129] [0.141] [0.106] [0.035] [0.082] [0.140] [0.042] [0.165] [0.076] [0.185] [0.078] [0.133] [0.134] [0.101]
Height last whorl	2.4-3.15 2.78 [0.26]	2.0-2.2 2.12 [0.09]	1.67-2.20 1.60-1.75 1.75-2.15 1.70-3.0 1.80-2.07 1.90 1.68 1.95 2.48 1.94 [0.16] [0.051] [0.2] [0.37] [0.191]					1.87-2.32 1.92-2.40 2.25-2.55 2.12 2.18 2.44 [0.14] [0.14] [0.13]			1.47-1.50 0.92-1.70 2.80-2.90 1.30-1.72 1.48 1.39 2.85 1.53 [0.02] [0.19] [0.07 [0.21]
Height/Height	1.456-1.571 1.275-1.454 1.599-1.718 1.454-1.562 1.428-1.451 1.378-1.541 1.372-1.377 1.500-1.773 1.522-1.666 1.451-1.632 1.200-1.326 1.380-1.552 1.351-1.491 1.444-1.562
last whorl ratio 1.516 [0.037]		1.382 [0.077]	1.663 [0.036]	1.520 [0.039]	1.438 [0.012]	1.459 [0.051]	1.375 [0.004]	1.642 [0.093]	1.603 [0.046]	1.528 [0.078]	1.263 1.463 [0.089] [0.049]	1.421 [0.099]	1.503 [0.033]
No. of whorls	4.0-5.1 4.46 [0.33]	3.35-3.60 3.6-4.65 3.2-3.5 3.45 4.22 3.38 [0.12] [0.26] [0.14]			3.2-3.5 3.32 [0.16]	3.2-4.5 3.98 [0.38]	2.75-3.10 2.92 [0.25]	3.5-5.2 4.38 [0.54]	3.8-4.6 4.18 0.24]	3.50-4.25 3.89 [0.35]	2.65-2.80 2.2-3.6 2.72 3.11 [0.11] [0.35]	3.4-4.2 3.8 [0.6]	3-3.75 3.38 [0.28]
No. axial ribs on last whorl (excluding the varix, when present)	14-20 17.5 [1.8]	13-20 16.2 [3.3]	11-16 13.35 [1.3]	14-19 16.5 [1.6]	35-57 45.7 [11.0]	16-27 22.4 [3.7]	24-26 25 [1.4]	12-23 16.9 [2.8]	19-24 21.1 [1.7]	8-10 8.7 [0.9]	17 16-27 17.5 20.2 [0.7] [2.7]	20-21 20.5 [0.7]	14-20 16.3 [1.9]