Ethalia montrouzieri

Ethalia montrouzieri (Souverbie, 1859) Figs 8–12 Rotella montrouzieri Souverbie, 1859: 376. Type locality: “ Insula Art ”, Belep, New Caledonia. Rotella montrouzieri – Souverbie 1860: 123, pl. 2 fig. 11. — Fischer 1878: 207; 1879 in 1875–1880: 379. — Herbert 1996: 412, figs 3–5 (holotype). Ethalia guamensis var. montrouzieri – Pilsbry 1889 –1890: 459, pl. 59 fig. 37. Ethalia guamensis montrouzieri – Kaicher 1990: 5700. Ethalia montrouzieri – Hickman & McLean 1990: 127, fig. 82c [?= E. catharinae]. — Héros et al. 2007: 209. Material examined Holotype (Fig. 8A–D) NEW CALEDONIA • Belep, Île Art; MHNBx 2004.TY.126. Other material NEW CALEDONIA – Plateau Chesterfield-Bellona • 1 specimen, dead; Plateau des Chesterfield, Stn DW72; 19°15′ S, 158°21′ E; depth 32 m; 25 Jul. 1988; NO Coriolis -CORAIL 2 leg.; MNHN • 3 specimens, dead; Plateau des Chesterfield, Stn DW44; 19°22′ S, 158°23′ E; depth 40 m; 23 Jul. 1988; NO Coriolis -CORAIL 2 leg.; MNHN • 2 specimens, dead; Plateau des Chesterfield, Stn DW128; 19°28′ S, 158°30′ E; depth 38 m; 29 Jul. 1988; NO Coriolis -CORAIL 2 leg.; MNHN • 1 specimen, dead; Plateau des Chesterfield, Stn DW41; 19°22′ S, 158°32′ E; depth 52 m; 23 Jul. 1988; NO Coriolis - CORAIL 2 leg.; MNHN • 1 specimen, dead; Plateau des Chesterfield, Stn DW117; 19°25′ S, 158°32′ E; depth 52 m; 28 Jul. 1988; NO Coriolis -CORAIL 2 leg.; MNHN • 1 specimen, living; Plateau des Chesterfield, Stn DW38; 19°22′ S, 158°43′ E; depth 61 m; 23 Jul. 1988; NO Coriolis -CORAIL 2 leg.; MNHN • 7 specimens, dead; Plateau des Chesterfield, Stn DW110; 19°09′ S, 158°56′ E; depth 40 m; 28 Jul. 1988; NO Coriolis -CORAIL 2 leg.; MNHN • 2 specimens, dead; Plateau des Chesterfield, Stn DW60; 19°15′ S, 158°57′ E; depth 45 m; 24 Jul. 1988; NO Coriolis -CORAIL 2 leg.; MNHN • 8 specimens, living; Plateau Chesterfield-Bellona, Stn D54; 21°25.9′ S, 158°59.5′ E; depth 36–42 m; Jul. 1984; CHALCAL 1 leg.; MNHN • 1 specimen, living; Plateau Chesterfield-Bellona, Stn D60; 21°48.65′ S, 159°27.95′ E; depth 45 m; Jul. 1984; CHALCAL 1 leg.; MNHN • 8 specimens, living; Plateau Chesterfield-Bellona; no coordinates; no depth; 1984; CHALCAL 1 leg.; MNHN. – d’Entrecasteaux Reefs – Lagon Nord – Belep • 3 specimens, living; Atoll de Huon, Stn 438; 18°10′ S, 162°51′ E; depth 37 m; 25 Feb. 1985; B. Richer-ORSTOM leg.; MNHN • 6 specimens, living; Atoll de Surprise, Stn 445; 18°18′ S, 163°02′ E; depth 41 m; 28 Feb. 1985; B. Richer-ORSTOM leg.; MNHN • 3 specimens, dead; Atoll de Surprise, Stn 473; 18°24′ S, 163°03′ E; depth 50 m; 1 Mar. 1985; B. RicherORSTOM leg.; MNHN • 3 specimens, dead; Atoll de Surprise, Stn 465; 18°22′ S, 163°05′ E; depth 45 m; 1 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 1 specimen, dead; Atoll de Surprise, Stn 466; 18°24′ S, 163°07′ E; depth 42 m; 1 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 6 specimens, dead; Atoll de Surprise, Stn 471; 18°28′ S, 163°07′ E; depth 42 m; 1 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 5 specimens, dead; Stn 1158; 19°10′ S, 163°07′ E; depth 48 m; 30 Oct. 1989; B. RicherORSTOM leg.; MNHN • 5 specimens, living; Stn 1168; 19°16′ S, 163°09′ E; depth 50 m; 30 Oct. 1989; B. Richer-ORSTOM leg.; MNHN • 1 specimen, living; Stn 1157; 19°10′ S, 163°10′ E; depth 48 m; 30 Oct. 1989; B. Richer-ORSTOM leg.; MNHN • 2 specimens, living; Lagon Nord, Stn 542; 19°06′ S, 163°10′ E; depth 50 m; 6 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 2 specimens, dead; Stn 1169; 19°19′ S, 163°11′ E; depth 47 m; 30 Oct. 1989; B. Richer-ORSTOM leg.; MNHN • 3 specimens, living; Lagon Nord, Stn 541; 19°06′ S, 163°13′ E; depth 45 m; 6 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 1 specimen, living; Stn 1170; 19°18′ S, 163°14′ E; depth 65 m; 30 Oct. 1989; B. Richer-ORSTOM leg.; MNHN • 1 specimen, dead; Stn 1197; 19°36′ S, 163°22′ E; depth 41 m; 1 Nov. 1989; B. Richer-ORSTOM leg.; MNHN • 4 specimens, dead; Lagon Nord, Stn 536; 19°09′ S, 163°23′ E; depth 61 m; 6 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 1 specimen, dead; Lagon Nord, Stn 535; 19°11′ S, 163°25′ E; depth 46 m; 6 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 1 specimen, dead; Stn 1205; 19°42′ S, 163°26′ E; depth 38 m; 2 Nov. 1989; B. Richer-ORSTOM leg.; MNHN • 2 specimens, living; Lagon Nord, Stn 478; 18°53′ S, 163°27′ E; depth 37 m; 2 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 1 specimen, dead; Lagon Nord, Stn 479; 18°55′ S, 163°28′ E; depth 37 m; 2 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 2 specimens, dead; Lagon Nord, Stn 482; 18°59′ S, 163°31′ E; depth 33 m; 2 Mar. 1985; B. RicherORSTOM leg.; MNHN • 2 specimens, living; Lagon Nord, Stn 481; 18°57′ S, 163°32′ E; depth 50 m; 2 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 1 specimen, dead; Lagon Nord, Stn 485; 18°58′ S, 163°33′ E; depth 32 m; 2 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 3 specimens, living; Stn 1213; 19°50′ S, 163°33′ E; depth 32 m; 3 Nov. 1989; B. Richer-ORSTOM leg.; MNHN • 7 specimens, dead; Lagon Nord, Stn 519; 19°02′ S, 163°34′ E; depth 39 m; 5 Mar. 1985; B. Richer-ORSTOM leg.; MNHN • 5 specimens, living; Stn 1217; 19°52′ S, 163°36′ E; depth 30 m; 3 Nov. 1989; B. Richer-ORSTOM leg.; MNHN • 2 specimens, living; Stn 1118; 19°35′ S, 163°52′ E; depth 30 m; 25 Oct. 1989; B. RicherORSTOM leg.; MNHN • 1 specimen, dead; Stn 1105; 19°40′ S, 163°57′ E; depth 25 m; 25 Oct. 1989; B. Richer-ORSTOM leg.; MNHN • 1 specimen, living; Stn 1104; 19°42′ S, 163°59′ E; depth 22 m; 25 Oct. 1989; B. Richer-ORSTOM leg.; MNHN. – Grande Terre, Balabio Island • 1 specimen, dead; Stn 1046; 20°05′ S, 164°07′ E; depth 6–7 m; 4 May 1988; B. Richer-ORSTOM leg.; MNHN. – Grande Terre, Poum • 2 specimens, dead; Stn 1016; 20°09′ S, 163°49′ E; depth 19–20 m; 3 May 1988; B. Richer-ORSTOM leg.; MNHN • 1 specimen, dead; Stn 1017; 20°08′ S, 163°51′ E; depth 21 m; 3 May 1988; B. Richer-ORSTOM leg.; MNHN • 2 specimens, dead; Stn 1015; 20°10′ S, 163°52′ E; depth 25 m; 3 May 1988; B. Richer-ORSTOM leg.; MNHN • 1 specimen, living; Stn 1007; 20°12′ S, 163°52′ E; depth 23–24 m; 2 May 1988; B. Richer-ORSTOM leg.; MNHN • 1 specimen, dead; Stn 1008; 20°11′ S, 163°53′ E; depth 27 m; 2 May 1988; B. Richer-ORSTOM leg.; MNHN • 2 specimens, dead; Stn 984; 20°21′ S, 163°56′ E; depth 21–23 m; 30 Apr. 1988; B. Richer-ORSTOM leg.; MNHN • 1 specimen, dead; Stn 989; 20°18′ S, 163°57′ E; depth 21 m; 30 Apr. 1988; B. Richer-ORSTOM leg.; MNHN • 9 specimens, living; Stn 982; 20°22′ S, 163°59′ E; depth 34–48 m; 29 Apr. 1988; B. Richer-ORSTOM leg.; MNHN • 1 specimen, living; Stn 971; 20°26′ S, 164°00′ E; depth 25–26 m; 29 Apr. 1988; B. RicherORSTOM leg.; MNHN • 1 specimen, living; Stn 961; 20°29′ S, 164°02′ E; depth 19–20 m; 28 Apr. 1988; B. Richer-ORSTOM leg.; MNHN. – Grande Terre, Pouébo • 1 specimen, dead; Stn 901; 20°13′ S, 164°22′ E; depth 22–40 m; 14 Jan. 1987; B. Richer-ORSTOM leg.; MNHN • 5 specimens, living; Stn 898; 20°14′ S, 164°27′ E; depth 22 m; 14 Jan. 1987; B. Richer-ORSTOM leg.; MNHN • 3 specimens, dead; Stn 895; 20°16′ S, 164°27′ E; depth 16 m; 14 Jan. 1987; B. Richer-ORSTOM leg.; MNHN • 2 specimens, living; Stn 896; 20°15′ S, 164°29′ E; depth 20 m; 14 Jan. 1987; B. RicherORSTOM leg.; MNHN • 4 specimens, living; Stn 892; 20°18′ S, 164°32′ E; depth 26 m; 14 Jan. 1987; B. Richer-ORSTOM leg.; MNHN • 6 specimens, living; Stn 891; 20°20′ S, 164°34′ E; depth 25 m; 14 Jan. 1987; B. Richer-ORSTOM leg.; MNHN • 4 specimens, living; Stn 890; 20°20′ S, 164°36′ E; depth 23 m; 14 Jan. 1987; B. Richer-ORSTOM leg.; MNHN • 6 specimens, living; Stn 888; 20°22′ S, 164°38′ E; depth 20 m; 14 Jan. 1987; B. Richer-ORSTOM leg.; MNHN • 2 specimens, living; Stn 885; 20°26′ S, 164°42′ E; depth 32 m; 14 Jan. 1987; B. Richer-ORSTOM leg.; MNHN. – Grande Terre, Koumac • 2 specimens, living; Stn 954; 20°31′ S, 164°03′ E; depth 15–17 m; 28 Apr. 1988; B. Richer-ORSTOM leg.; MNHN • 1 specimen, living; Stn KD537; 20°31′ S, 164°03.3′ E; depth 12 m; 6 Nov. 2019; KOUMAC 2.3 leg.; sable blanc, éponges; DNA voucher, photographed alive (image LC349); MNHN IM-2019-7682 • 1 specimen, living; Stn KD533; 20°32.2′ S, 164°05.5′ E; depth 11 m; 5 Nov. 2019; KOUMAC 2.3 leg.; sable blanc nu; MNHN • 1 specimen, living; Stn KD565; 20°32.9′ S, 164°05.7′ E; depth 3 m; 15 Nov. 2019; KOUMAC 2.3 leg.; sable blanc et algues vertes filamenteuses et cotoneuses; MNHN • 1 specimen; Stn 953; 20°32′ S, 164°06′ E; depth 18–19 m; 28 Apr. 1988; B. Richer-ORSTOM leg.; MNHN • 10 specimens, living; Stn KD563; 20°33.4′ S, 164°06.3′ E; depth 5 m; 15 Nov. 2019; KOUMAC 2.3 leg.; sable blanc; MNHN • 5 specimens, living; Pointe de Babouillat, Stn 1292; 20°22.4′ S, 164°06.8′ E; depth 0 m; Oct. 1993; Expédition Montrouzier leg.; marée, fonds meubles; MNHN • 1 specimen; Stn 952; 20°31′ S, 164°07′ E; depth 16–17 m; 28 Apr. 1988; B. Richer-ORSTOM leg.; MNHN • 1 specimen; Stn 946; 20°35′ S, 164°08′ E; depth 16–17 m; 28 Apr. 1988; B. Richer-ORSTOM leg.; MNHN • 1 specimen, living; Stn 948; 20°32′ S, 164°09′ E; depth 16 m; 28 Apr. 1988; B. RicherORSTOM leg.; MNHN • 2 specimens; Stn 945; 20°35′ S, 164°10′ E; depth 15–16 m; 28 Apr. 1988; B. Richer-ORSTOM leg.; MNHN • 2 specimens, living; Passe du Baron, Stn KR644; 20°33.8′ S, 164°10.3′ E; depth unknown; 29 Sep. 2018; KOUMAC 2.1 leg.; fonds blancs; MNHN • 7 specimens, living; Grand Récif de Koumac, Stn KR218; 20°36.1′ S, 164°10.5′ E; depth 11 m; 16 Sep. 2018; KOUMAC 2.1 leg.; patate sur fonds blancs; DNA vouchers: MNHN-IM-2013-84747, -84748, -84749 • 23 specimens, living; Chenal de l’Infernet, Stn 1305; 20°36.2′ S, 164°11.0′ E; depth 12–15 m; Oct. 1993; Expédition Montrouzier leg.; sable gris; largest specimen 21.6 ×15.0 mm; MNHN • 5 specimens, living; Stn 943; 20°37′ S, 164°11′ E; depth 15 m; 28 Apr. 1988; B. Richer-ORSTOM leg.; MNHN • 3 specimens; Stn 944; 20°35′ S, 164°12′ E; depth 14–15 m; 28 Apr. 1988; B. Richer-ORSTOM leg.; MNHN • 3 specimens, living; Îlot Magone, Stn 1283; 20°33.5′ S, 164°12.2′ E; depth 0 m; Oct. 1993; Expédition Montrouzier leg.; marée, platier sableux; MNHN • 5 specimens, living; between Grand Récif de Koumac and l’Infernet, Stn KR607; 20°38.3′ S, 164°12.4′ E; depth 7–15 m; 5 Sep. 2018; KOUMAC 2.1 leg.;