Character Information: Column Regions

Fig. 1. - 1, Paracalliactis mediterranea. Preserved specimen from Banyuls drawn to show rough texture of scapus (sp), smooth, thin translucent scapulus (sl) and small irregularly placed tubercles (tb) at junction of scapus and scapulus.
Capitulum, Physa, and Scapus
Fig. 10. Andvakia mirabilis; life size. a. Capitulum. b. Scapus; c. Physa."