Pareuthria fuscata ( Bruguière, 1789 )

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 : 55

Pareuthria fuscata ( Bruguière, 1789)

Fig. 3K

Buccinum fuscatum Bruguière, 1789: 282

Pareuthria fuscata — Powell, 1951: 132; Pastorino, 2016: 304 , figs. 1A–Q, 2A–G (synonymy, protoconch and radula)

Examined material. 8 sh. (MACN-In 40683).

Description. Shell height to 28.5 mm (up to 44.6 mm according to Pastorino 2016); fusiform, solid. Protoconch of about 1 convex whorl; transition to teleoconch poorly defined. Teleoconch of up to 5 whorls, slightly convex in outline, with a very weak shoulder; last whorl comprising about 70% of total shell height. Suture impressed. Surface grayish, with a narrow, diffuse, clear band below the suture; sculptured with weak spiral threads, more evident at the base; in addition, faint growth lines are evident along all teleoconch whorls. Aperture ovate, interior dark brown, with margin white; columellar callus moderately thick, slightly expanded over the base; siphonal canal short, almost straight, wide.

Figures

FIGURE 3. A. Eumetula cf. dilecta Thiele, 1912, MACN-In 40680, scale bar = 1 mm. B. Newtoniellidae sp. 1, MACN-In 40678, scale bar = 1 mm. C. Newtoniellidae sp. 2, MACN-In 40679, scale bar = 1 mm. D. Trochita pileolus (d´Orbigny, 1841), MACN-In 40669, scale bar = 2 mm. E. Eatoniella denticula Ponder & Worsfold, 1994, MACN-In 40670, scale bar = 1 mm. F. Tectonatica impervia (Philippi, 1845), MACN-In 40671, scale bar = 2 mm. G. Onoba fuegoensis (Strebel, 1908), MACN-In 40672, scale bar = 1 mm. H. “Anomacme” multituberculata Castellanos, Rolán & Bartolotta, 1987, MACN-In 40682, scale bar = 1 mm. I. Antistreptus magellanicus Dall, 1902, MACN-In 40681, scale bar = 1 mm. J. Microdeuthria michaelseni (Strebel, 1905), MACN-In 40684, scale bar = 2 mm. K. Pareuthria fuscata (Bruguière, 1789), MACN-In 40683, scale bar = 5 mm.