Delphinula laciniata.
D. distorta.
D. turbinopsis.
D. laciniata. The fringed Delphinula. Pl. [23], fig. 5.
Shell depressed, umbilicus large, surrounded by large vaulted scales in spiral rows; strong waved spiral striæ; colour reddish purple, variegated with white.
FAMILY XV.
Turbinacea. Seven genera.
1. Solarium. Seven species.
Some shells of this genus are highly valued for their beauty and rarity.
Shell orbicular, involuted almost in the same plane; Planorbis-shaped; the spire of the right side very depressed; umbilicus large and conical, with edges denticulated or not at the entrance; aperture not modified by the last whorl of the spire, which is entirely flat; no columella.
Solarium perspectivum.