Pagodula echinata (Kiener 1839)

Type of larval development: direct (non-planktotrophic) inferred from paucispiral protoconch.

Shell fusiform, hyaline, up to 25 mm high but generally no more than 15 mm. Protoconch small, smooth, of little more than one whorl. Teleoconch of 6-7 whorls bearing a very strong median keel and delicate, foliated varixes (6-9 on body whorl) forming elongated projections at their intersection with the keel; no other spiral sculpture is present. Outer lip simple, with a peripheral projection terminating the keel. Siphonal canal long and delicate, widely open. Colour white. The taxonomy of deep-water forms related to this species is unsettled (see comments in Bouchet & Warén, 1985); some of these correspond to the nominal species Pagodula cossmani (Locard, 1897) which differs in lacking long projections along the shoulder which is not so pronounced, and in having spiral cords below the shoulder in a pattern recalling Trophonopsis barvicensis (Johnston, 1825).

Eastern Atlantic, fron Bay of Biscay to Morocco; Mediterranean, usually in 100-300 m depth. Gorringe seamount, moderately common in 330-830 m, but not found on the other Lusitanian seamounts