XVIII. Descriptions of two new Shells.By Captain Frederic Marryat, R.N. F.L.S.
Read February 18, 1817.
MITRA.
Mitra zonata.
Tab. X. Fig. 1, 2.
Mitra epidermide luteâ, fulvo-marmoratâ, anfractibus infernè basi nigris, columellâ quinque-plicatâ.
Habitat in mare Mediterraneo.
Anfractus basi nigri, crenato-striolati.
This shell was taken up near the port of Nice in the Mediterranean, adhering to a sounding-lead, in very deep water. I have no hesitation in pronouncing it to be a new species, as I cannot find it described by any author.
CYCLOSTREMA.
character genericus.
Testa depressa, perspectivo-umbilicata; apertura circularis.
Cyclostrema cancellata.
Tab. X. Fig. 3, 4.
C. testâ albâ, lineis longitudinalibus et transversis elevatis decussantibus, inde cancellatâ.
