Savatieria, Rochebrune & Mabille, 1885

Luca, Javier Di & Zelaya, Diego G., 2019, Gastropods from the Burdwood Bank (southwestern Atlantic): an overview of species diversity, Zootaxa 4544 (1), pp. 41-78 : 56-57

“ Savatieria ” chordata Castellanos, Rolán & Bartolotta, 1987

Fig. 4C

Savatieria chordata Castellanos et al., 1987: 97 , pl. 1, fig. 3; Signorelli et al., 2015: 64, figs. 6C, D (holotype) “ Savatieria ” chordata— Di Luca & Pastorino, 2018: 300, figs. 6A–F (paratype, protoconch and radula)

Examined material. 5 an. and 3 sh. (MACN-In 40687); holotype and 5 paratypes (MLP-Ma 4688).

Description. Shell height to 6.1 mm; fusiform, moderately solid. Protoconch of 1.75 almost straight whorls, apex deeply sunken (not visible in the figure). Teleoconch of up to 3.75 whorls, slightly convex in outline; last whorl comprising about 50% of total shell height. Suture impressed. Surface pale brown, yellowish at suture and base; sculptured with 14 to 16 strong axial ribs and 4 to 7 narrow, low spiral cords per whorl, which produces small beads at their intersections. An additional, almost smooth and markedly stronger cord appears at sutures. Axial sculpture vanishing at the base, where 6 to 8 lower cords are recognizable. Aperture ovate, interior white; columellar callus moderately thick, slightly expanded on the base; siphonal canal moderately long, somewhat oblique, wide. Operculum ovate, with subterminal nucleus; pale brown, translucent.

Figures

FIGURE 4: A. Proneptunea (?) minuta Castellanos, 1992, MACN-In 40694, scale bar = 1 mm. B. “Savatieria” meridionalis (Smith, 1881), MACN-In 40685, scale bar = 1 mm. C. “Savatieria” chordata Castellanos, Rolán & Bartolotta, 1987, MACN-In 40687, scale bar = 1 mm. D. Buccinidae sp., MACN-In 40686, scale bar = 1 mm. E. Fuegotrophon pallidus (Broderip, 1832), MACN-In 40690, scale bar = 5 mm. F. Trophon ohlini Strebel, 1904, MACN-In 40689, scale bar = 5 mm. G. Trophon plicatus (Lightfoot, 1786), MACN-In 40688, scale bar = 2 mm. H. Paradmete crymochara (Rochebrune & Mabille, 1885), MACN-In 40691, scale bar = 5 mm. I. Mangelia michaelseni (Strebel, 1905), MACN-In 40693, scale bar = 1 mm. J. Leucosyrinx angusteplicata (Strebel, 1905), MACN-In 40692, scale bar = 4 mm. K. Thesbia michaelseni (Strebel, 1905), MACN-In 40695, scale bar = 1 mm. L. Admete magellanica (Strebel, 1905), MACN-In 40696, scale bar = 3 mm.