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. — Continuation.
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)
No. spiral cords on last whorl4-8 4.5 [1.3]4-6 5.2 [0.9]2-3 2.5 [0.5]3-4 3.2 [0.4]22-35 29.7 [6.8]3-9 6.1 [1.7]4-5 4.5 [0.7]-3 3 [0]3-4 - 3.7 [0.5]-6-7 6.5 [0.7]5-6 5.7 [0.5]
Varix-/+---+----- -+-+
Umbilical false chink--/+-/++++++-/++ +++-
Protoconch
Height0.350-0.400 0.300-0.350 0.340-0.420 0.375-0.412 0.325-0.400 0.312-0.350 0.375-0.400 0.325-0.375 0.325-0.375 0.375-0.450 0.275 0.376 0.325 0.391 0.387 0.362 0.335 0.387 0.349 0.349 0.418 0.275 [0.016] [0.023] [0.022] [0.016] [0.037] [0.015] [0.018] [0.023] [0.021] [0.033] [0.000]0.275-0.340 0.412-0.425 0.30-0.41 0.313 0.418 0.338 [0.017] [0.009] [3.03]
Diameter of nucleus0.087-0.117 0.187-0.212 0.075-0.100 0.062-0.095 0.062-0.087 0.087-0.120 0.200-0.212 0.070-0.100 0.075-0.087 0.200-0.275 0.075 0.096 0.199 0.088 0.082 0.075 0.101 0.206 0.086 0.079 0.237 0.075 [0.011] [0.0144] [0.006] [0.012] [0.012] [0.009] [0.008] [0.010] [0.006] [0.032] [0.000]0.050-0.075 0.075-0.087 0.062-0.087 0.063 0.081 0.075 [0.006] [0.008] [0.038]
Diameter of first half whorl0.155-0.190 0.337-0.350 0.145-0.175 0.150-0.175 0.150 0.176 0.347 0.164 0.158 0.15 [0.012] [0.006] [0.010] [0.010] [0.00]0.150-0.212 0.350-0.362 0.135-0.175 0.125-0.175 0.362-0.425 0.137-0.150 0.112-0.150 0.125-0.137 0.112-0.145 0.178 0.356 0.158 0.154 0.390 0.143 0.126 0.131 0.135 [0.020] [0.008] [0.011] [0.015] [0.026] [0.009] [0.008] [0.008] [0.007]
Maximum diameter0.412-0.475 0.400-0.475 0.425-0.475 0.425-0.450 0.450-0.487 0.375-0.437 0.500 0.442 0.431 0.458 0.437 0.471 0.408 0.500 [0.019] [0.031] [0.014] [0.008] [0.019] [0.021] [0.000]0.350-0.437 0.387-0.450 0.525-0.575 0.400-0.450 0.400-0.462 0.570-0.600 0.375-0.462 0.394 0.419 0.550 0.425 0.435 0.580 0.415 [0.021] [0.020] [0.029] [0.035] [0.017] [0.021] [0.012]
No. of whorls2.2-2.35 2.281.10-1.25 2.25-2.75 2.3-2.5 1.15 2.55 2.42.25-2.3 2.281.8-2.6 2.061.25 1.252.2-2.6 2.25-2.7 2.35 2.41.25-1.40 2.0-2.2 1.33 2.12.25-2.40 2.4-2.5 2.32 2.452.3-2.9 2.51
Type[0.04] M[0.07] P[0.13] M[0.09] M[0.03] M[0.30] M[0.00] P[0.13] M[0.13] M[0.07] [0.14] P M[0.04] M[0.07] M[0.02] M