Leucosyrinx angusteplicata (Strebel, 1905)

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 : 59

Leucosyrinx angusteplicata (Strebel, 1905)

Fig. 4J

Bela angusteplicata Strebel, 1905b: 583 , pl. 22, figs. 24, 24a–c

Leucosyrinx paragenota Powell, 1951: 169 , pl. 9, figs. 56, N113 (protoconch)

Leucosyrinx angusteplicata — Castellanos & Landoni, 1993: 7, pl. 2, fig. 10 (synonymy)

Examined material. 1 sh. (MACN-In 40692).

Description. Shell height to 10.3 mm (up to 21.3 mm according to Powell 1951); fusiform, moderately solid. Protoconch large, of 2 slightly convex whorls. Teleoconch of up to 4 whorls, slightly convex in outline, with slightly concave shoulder; last whorl comprising about 60% of total shell height. Suture impressed. Surface white; sculptured with 16 to 18 strong, oblique, axial ribs per whorl; and weak spiral cords: 10 to 16 on the spire whorls, and about 40 on the last whorl. Axial sculpture vanishing towards the base and shoulder, where numerous well marked growth lines are evident. Aperture ovate, interior white; columellar callus moderately thick, slightly expanded on the base; siphonal canal moderately short, somewhat oblique, wide.

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.