Eulimacrostoma gen. nov., a new genus of Eulimidae (Gastropoda, Caenogastropoda) with description of a new species and reevaluation of other western Atlantic species

Eulimacrostoma spp. A–C. Eulimacrostoma chascanon (Watson, 1883), comb. nov.: A, B. Lectotype herein designated (NHMUK 1887.2.9.1587); C. Paralectotype (NHMUK Norman Coll. 1979225); D–I. Eulimacrostoma fusus (Dall, 1889), comb. nov.: D, E, G–I. Lectotype herein designated (USNM 87273); G. Paralectotype (MCZ 7515). J–N. Eulimacrostoma lutescens (Simone, 2002), comb. nov.: J, K. Holotype (MNHN-IM 2000-5662); L–N. (MNHN-IM uncatalogued), from type locality. A, C–E, G, K, M. Shell in frontal view; B. Shell in dorsal view; F, L, N. Shell in lateral view; H, O. Detail of apical whorls in frontal view; I, J. Detail of teleoconch surface, white square in I indicates detail in J, white arrows in J indicates microsculpture of axial lines. Scale bars: 1 mm (A–G, I, K–N); 400 µm (H); 50 µm (J); 200 µm (O). Credits: A–C: NHMUK; H, I: USNM; J, K: MNHN-IM.