“Heures à l’usage de Paris” is a Book of Hours in the collection of the Bibliothèque Municipale in Lyon . It is dated ca. 1425–1430. On the last page of the calender a hybrid is seen, consisting of a goat (capricorn) and a shell-like figure.
The shell is sinistral, semi-segmented with lobes. The figure resembles a similar one shown here.
 BLY, inv. Ms. 5140, 148 ff. http://bit.ly/1lQrMxl.