| With the objective of testing the monophyly of the Calyptraeoidea and of searching for its ground plan, a detailed morpho-logical analysis was conducted for the following species: a) Family Calyptraeidae, 1) Bostrycapulus aculeatus (Gmelin) (formerly Crepidula); 2) Crepidula aff. plana Say; 3) C. protea Orbigny (these from Brazil); 4) C. aff. protea (from Argentina) (published elsewhere); 5) C. convexa Say (from Venezuela); 6) C. fornicata (L.) (from Europe); 7) Calyptraea centralis (Conrad) (from Brazil); 8) Crucibulum auricula (Gmelin) (from Venezuela); 9) Cr. quiriquinae (Lesson) (from Chile); 10) Trochita trochiformis (Born) (from Chile); 11) Sigapatella calyptraeformis (Lam.) (from New Zealand, formerly Calyptraea); b) Family Hipponicidae, 12)... |
