context source (Deepsea)Gofas, S.; Luque, Á. A.; Templado, J.; Salas, C. (2017). A national checklist of marine Mollusca in Spanish waters. <em>Scientia Marina.</em> 81(2) : 241-254, and supplementary online material., available online athttps://doi.org/10.3989/scimar.04543.21a[details]
basis of recordGofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Patrimoines Naturels.</em> 50: 180-213. (look up in IMIS) [details]
additional sourceRolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Biology Type of larval development: planktotrophic, inferred from multispiral protoconch. [details] Diagnosis Shell up to 13 mm although generally smaller (6-7 mm). Protoconch conical with 4.5 whorls, 500-550 ¼m high and with several poorly impressed subsutural striae. Teleoconch with up to 8 convex whorls and deep suture, with 14-15 laminar ribs per whorl, forming an angular projection just below the suture, and with numerous, clearly impressed spiral striae in the interspaces. Colour of protoconch brown, of teleoconch white.
This species is extremely similar to E. tibrii(de Boury, 1890), and may be virtually indistinguishable from it without the protoconch. It grows slightly larger but the most diagnostic character is that the protoconch of E. tiberii is 0.7 to 0.8 times smallerand has a clear substural thread instead of several poorly marked spirals . Both species are easily separated when present in the same sample, but E. algerianum clearly predominates in the Alboran sea and E. tiberii on the Lusitanian seamonts. [details] Distribution Eastern Atlantic, from Bay of Biscay to the Cape Verde Is. Mediterranean, in 50-400 m. Gorringe, Josephine, Ampère and Seine seamounts, moderately common in 96-425 m [details] Type locality Algiers, Algeria (20 fathoms) [details]