Plate 56
Suborder: Phaeodaria
Family: Lirellidae
Figure, Species, Station depth (m), Type of Micrograph, Magnification
1. Lirella bullata (Stadum and Ling), Same specimen as Plate 55, figure 10. Detail of wavy crests and striae., E: 3755, SEM, x 6400.
2. Lirella melo (Cleve), Cross section of a part of peristome showing several layers of different porosity., PB: 1268, SEM, x 3000.
3. Lirella melo (Cleve), Cross section corresponding to figure 2, showing polygonal meshwork in central part and two other layers of different porocity. Specimen ashed at 500Ž for one hour., PB: 2869, TEM, x 8300.
4. Lirella melo (Cleve), Same specimen., PB: 2869, TEM, x 2000.
5. Lirella melo ? (Cleve), Extensively dissolved specimen; shell integrity diminished., PB: 3769, SEM, x 1600.
6. Lirella melo (Cleve), Cross section showing polygonal meshwork and the pores., PB: 1268, SEM, x 5,000.
7. Lirella melo (Cleve), Same specimens as figure 3; cross section showing polygonal meshwork and porous outer layers. Note that the polygons are made of tubes., P1: 978, TEM, x 7600.
8. Lirella melo (Cleve), Cross section showing irregular pores bounded by tubular structure which is different from figures 3, 7., P1: 4280, TEM, x 6100.
9. Lirella tortuosa Takahashi, n. sp., Paratype; right coiled., PB: 1268, SEM, x 500.
10. Lirella tortuosa Takahashi, n. sp., Paratype; left coiled., P1: 4280, SEM, x 450.
11. Lirella tortuosa Takahashi, n. sp., Paratype; right coiled., P1: 4280, SEM, x 470. |
