Loc., living. General in the European Seas.
Note. "Dentalium dentalis" has been recorded as a pleistocene shell from Bamff, and "Dentalium striatum" from Preston. By the former Dentalis is probably meant. What the Preston shell was it is difficult to say without an examination of the specimens.
86. Patella vulgata, Linnæus.
Loc., fossil. Usually in the sandy and gravelly beds of the British pleistocene. [Sweden.]
Loc., living. In the Northern and Celtic regions of the European Seas.
Note. Appears in the reg crag. It is enumerated by Phillippi with a mark of doubt as an inhabitant of the Sicilian Seas during the Newer Pliocene epoch.
87. Patella pellucida, Linnæus.
Loc., fossil. Clyde beds, Dalmuir.
Loc., living, Celtic and northern regions of the European Seas. Constantly in the Laminarian zone.
88. Patella lævis, Pennant.
Syn., Patella cærulea, Montagu.
Loc., fossil. Ireland. Bamff.
Loc., living. Celtic and northern regions of the European Seas, with the last. The distribution of this species and of Patella pellucida depends probably on that of the Laminariæ, on the leaves or in the root of which fucus they live. Their presence in an upheaved bed is an excellent indication of the depth at which it was formed.
[89. Lottia testudinalis (Patella sp.), O. F. Muller.
Syn., Patella tessellata, Muller. Z. D. Patella Clealandi, Sowerby. Patella clypeus, Brown. Patella amœnay, Say.
Loc., fossil. Sweden.
Loc., living. The seas of Northern and Arctic Europe. Greenland and Boreal America.]
90. Lottia virginea, Muller.
Syn., Patella parva, Da Costa, var. Patella aqualis (Sowerby in Min. Conch.).
Loc., fossil. Scottish beds, frequent. Ireland, rare. [Sweden.]
Loc., living. Celtic and northern regions of the European Seas.
Note. In the coralline and red crags. [Is Lottia parvula this species?]
91. Fissurella græca (Patella sp.), Linnæus.
Syn., Fissurella reticulata, Donovan. Fissurella cancellata, Wood.
Loc., fossil. Clyde beds. [Sweden.]
Loc., living. Throughout the European Seas.
Note. In both red and coralline crags,
92. Cemoria noachina (Patella sp.), Chemnitz.
Syn., Patella fissurella, Muller. Cemoria Flemingii, Leach. Puncturella noachina, Lowe. Sipho striata, Brown.
Loc., fossil. Clyde and other beds in Scotland. [Sweden, Norway.]
Loc., living. Seas of Northern and Arctic Europe, Greenland, and Boreal America.
