Diaphana paessleri (Strebel, 1905)

Fig. 5K

Utriculus paessleri Strebel, 1905b: 577, pl. 22, figs. 34, 34a

Diaphana paessleri — Schiøtte, 1998: 90, figs. 9–10, 11a–i, 19e (holotype, synonymy, protoconch and radula)

Examined material. 1 an. and 8 sh. (MACN-In 40706).

Description. Shell height to 3 mm (up to 3.3 mm according to Schiøtte 1998); ovate, delicate. Protoconch tilt, translucent in well-preserved specimens, of 1.25 markedly convex whorls. Teleoconch of up to 2 whorls, slightly convex in outline, with prominent shoulder; last whorl comprising about 85% of total shell height. Suture deep, slightly channeled. Surface white; only sculptured with faint growth lines. Aperture elongate-ovate, interior white; columellar callus narrow, expanded over the umbilical area. Umbilicus open, narrow, delimited by a thin rim.