Dinia truncatula Schepman, 1913: 471 Deep-sea “ cephalaspidean ” heterobranchs (Gastropoda) from the tropical southwest Pacific Valdés, Ángel Mémoires du Muséum national d'Histoire naturelle 2008 196 587 792 (Schepman, 1913) Schepman 1913 [272,704,265,290] Gastropoda Retusidae Relichna Animalia Cephalaspidea 175 762 Mollusca species truncatula    Dinia truncatulaSchepman, 1913: 471, pl. 32, fig. 5.   TYPE MATERIAL. — One syntype ZMA 3.13.126.   TYPE LOCALITY. — Sulu Archipelago, Philippines, 05°43.5’N, 119°40’E,  522 m[  Siboga: stn 095].  MATERIALEXAMINED. —   Philippines. The typematerial. 168°42’E,  340 m, 1 dd.   New Caledoniaproper. LAGON: stn 830, Secteur de Poindimié,  Fiji. MUSORSTOM 10: stn DW1334, Bligh Water, 16°51’S, 20°49’S, 165°19’E, 105-110 m, 42 dd. 178°14’E, 251-257 m, 1 dd (Figs 85 D, E).   NorfolkRidge. SMIB5: stn DW90, Banc Aztèque, 22°19’S,   DISTRIBUTION. — Originallydescribed from Indonesia(Schepman 1913). Materialherein collected from Fiji, New Caledoniaand the Philippines(Fig. 89), in  110-522 m. DESCRIPTION. — Shell morphology. Length 6 mm, width 3 mm(largest specimen examined). Shell solid, oval, with nearly parallel sides, narrower posteriorly (Fig. 85D). Only 1 whorl visible, except for a small visible portion of the top of the spire. Apex rounded, deeply umbilicate (Fig. 85E), with the aperture lip rising from the right side. The aperture lip forms a rounded wing connected to the columellar margin. Anterior end of the shell rounded. Umbilicus narrow, partially covered by a columellar extension. Aperture long, wide anteriorly, narrowing at about 1/4 of its length. Columellar margin thickened with a conspicuous tooth. Sculpture of a number of inconspicuous spiral grooves covering the entire shell. Colour uniformly dirty white.  Anatomy. Unknown. All shells collected lacked soft parts. REMARKS. — Schepman (1913) described  Dinia truncatulabased on 2 shells collected from the Suluarchipelago, Philippines. Examination of the remaining syntypeof this species revealed that is it conspecific with the shells from Fijiand New Caledoniahere examined. The shells of  Dinia truncatularesemble those of members of  Relichna, described above, and the only feature that would suggest its inclusion in  DiniatysIredale, 1936(the valid name for  DiniaH. & A.Adams, 1854, which is preoccupied by  DiniaWalker, 1854[ Lepidoptera]), is the presence of a conspicuous tooth on the columella, which is also present in several genera of Retusidae. This species is provisionally referred to  Relichnapending anatomical information becoming available. [463,759,439,464] ZMA 175 762 ZMA 3.13 1 syntype [242,1277,508,533] LOCALITY Philippines 522 5.725 Archipelago 925 119.666664 175 762 1 Sulu holotype [495,1085,580,602] Philippines 340 The 168.7 175 762 1 DISTRIBUTION Indonesia 316 Originally Material 175 762 1 Philippines Sulu 175 762 1 Sulu syntype