TYPE MATERIAL Holotype (MNHN-IM-2000-34809) dim. 2.07 x 1.05 mm. Protoconch 0.27 0.25 mm. stn AD105.
TYPE LOCALITY Caribbean: Martinique, Baie de Fort-de-France, anses Marettes, 2 m.
DISTRIBUTION Martinique.
MATERIAL EXAMINED Station of Martinique: stn AD105, Baie de Fort-de- France, anses Marettes, 2 m,.
DESCRIPTION Shell small, conical with impressed sutures; color- less, vitreous, glossy. Protoconch short of 3-3.5 smooth convex whorls, apex small. Teleoconch of 4.5 whorls with reticulate sculpture of 3 equal spiral cords crossed by weaker axial ribs, 18 on last whorl; beads at each intersection. A fourth beaded cord is emerging at the base of the last whorl from the insertion of the outer lip; under ESEM the border of the columella is highlighted by a very weak furrow. Columella short, columellar callus bordering a circular aperture, anal sulcus and siphonal canal well defined.
COMPARISON The only similar Caribbean species is Cerithiopsis fuscoflava Rolán & Espinosa, 1996 which has a different sculpture and color. Similar protoconchs can be found in Cerithiopsis iontha Bartsch, 1911 and Cerithiopsis vicola Dall & Bartsch, 1911, both having a different color. ETYMOLOGY Named after Myrianne Brival, a member of the MNHN financial services and a native of Martinique, in recognition of her role in management and outreach during the MADIBENTHOS expedition.