Fasciolaria agatha a new species of Canopus Bank, northeast of Brazil, collected in 60m depth, is described based on shell and operculum. The species is characterized by shell relatively elongated, whorls rounded; sculpture relatively weak and uniform; and canal narrow and long.
Two new limpet like gastropods are described for deep waters (from 260 to 60 m depth) in Canopus Bank, off Ceará, N.E. Brazilian coast. Hipponix climax (Caenogastropoda, Hipponicidae) is long, scalariform, with wide scales in region close to aperture. Pedicularia tibia (Caenogastropoda, Pediculariidae) has plastic shell with weak reticulated sculpture in center and smooth-undulated shell in periphery. A preliminary gross anatomy of these species is also provided. Both species live attached to other organisms, H. climax on urchin Cidaris sp., and P. tibia on hydrocoral Stylaster sp.
Diptychophlia hubrechti, a new species is described base on shell, being the first record of this genus to Atlantic Ocean. It occurs in Fortaleza, Ceará, N.E. Brazil, in 260 m depth. The main diagnostic characters of the new species are: shell with acuminate, color cream to light-pink, siphonal canal moderately short, protoconch mammilated and strongly channeled suture.
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