Five new species and two records of Triphorinae (Caenogastropoda, Triphoridae) from Brazil Author Fernandes, Maurício R. Author Pimenta, Alexandre D. text Zootaxa 2015 4012 3 493 513 journal article 10.11646/zootaxa.4012.3.5 4a56275a-7513-4d85-8762-20d379c0c300 1175-5326 241558 3AAEBA6B-4914-4524-AD2B-5436AEB05AC7 Cheirodonta Marshall , 1983 Type species. Cerithium perversum var. pallescens Jeffreys, 1867 ; original designation. Recent, eastern Atlantic and Mediterranean. Diagnosis. Embryonic shell with hemispherical and arrowhead-shaped granules; larval shell with two spiral cords crossed by axial ribs; teleoconch with late development of median spiral cord; suture faintly distinct; posterior canal almost detached from aperture; presence of supranumerical cords; radular formula (6–8)-1-1-1-(6– 8), central tooth (seven to nine cusps) and lateral teeth (eight to nine cusps) are short and broad, all marginal teeth (seven to 13 cusps) or outermost teeth hand-like with elongate basal shafts (partly based on Marshall 1983 ). Remarks. The genus has up to now six species worldwide ( Bouchet & Gofas 2014 ), four in the western Atlantic ( Rosenberg 2009 ). However, species previously assigned to Cheirodonta in the Caribbean actually belong to Nanaphora ; see remarks of Nanaphora verbernei (Moolenbeek & Faber) comb. nov.