Deskripsieng
Description. Shell medium sized, fragile, ovate, capuliform, with a very depressed profile. Protoconch small, naticiform, multispiral of 2.5 whorls, partly immersed in the teleoconch, placed slightly posterior to midline and displaced slightly to the left. Junction with teleoconch sharply delimited by scar. Teleoconch consists of one rapidly expanding, weakly convex, flattened whorl. Sculpture of irregular, concentric ridges and rugae, and fine spiral threads. Aperture very large, circular, peristome complete, with irregular edge. Inner aspect bears horseshoe-shaped lamina extending from the inner side of the apex (obscured by matrix in Azorean specimens).
Sumber: The Lower Pliocene marine gastropods of Santa Maria Island, Azores: Taxonomy and palaeobiogeographic implications
Deskripsieng
Dyspotaea semicanalis Bronn in Hartung 1861: 120, fig. 4.
Sumber: The Lower Pliocene marine gastropods of Santa Maria Island, Azores: Taxonomy and palaeobiogeographic implications
Distribusieng
Distribution. Lower Miocene: Proto-Mediterranean, Italy (Sacco 1896 b). Middle Miocene:? Paratethys, Poland (Bałuk 1975), Romania (Zilch 1934). Upper Miocene: Atlantic (Tortonian), NW France (Brébion 1964); Proto-Mediterranean, Italy (Sacco 1896 b). Lower Pliocene: Atlantic, Santa Maria Island, Azores (Bronn in Hartung 1861; Bronn in Reiss 1862; Mayer 1864); central Mediterranean, Italy (Chirli 2006). Upper Pliocene: western Mediterranean, Estepona Basin (Landau et al. 2004 a); central Mediterranean, Italy (Bertarelli & Inzani 1986). Upper Pleistocene: Red Sea, Hurghada, Egypt (NHMW coll.). Present-day: Circumglobal distribution; Indo-Pacific (Wilson 1993), eastern Pacific (Keen 1971); eastern Atlantic, Cabo Verde archipelago and West African shores (Rolán 2005; Ávila et al. 2015 b, 2022), southeastern Florida and West Indies (Abbott 1954; Redfern 2013), western Atlantic, Bermuda, Carolinian biogeographic province. Genus Hipponix Defrance, 1819
Sumber: The Lower Pliocene marine gastropods of Santa Maria Island, Azores: Taxonomy and palaeobiogeographic implications
