PANOPEA. 221 
Family—SAXICAVIDA, Gray. 
Genus—Panorea, Ménard de la Groye, 1807. 
(‘ Ann. Mus. Hist. nat., Paris,’ vol. ix, p. 131, pl. xii.) 
Panopga, sp. Text-fig. 27. 
Internal casts of a large, convex Panopea occur in the Tealby Limestone of 
Fie. 27.—Panopea, sp. Tealby Limestone, North Willingham, Lincolnshire. Sedgwick Museum, Cambridge. x 2. 
Hainton, Claxby, and North Willingham, Lincolnshire. In form they resemble 
some varieties of P. gurgitis, but the posterior part of the shell is more elongated. 
One specimen shows a large external hgament, and on a small portion of shell 
indications of radial rows of fine granules are seen. The pallial sinus is large and 
rounded. 
