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| Testudinella caeca Parsons,, 1892 |
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| Testudinella caeca, specimen attached to an air-bubble under the coverslide, dorsoventral view of whirling specimen (corona protruded). Focal plane on the buccal field and the foot opening which is at the posterior end of the lorica. (1) |
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| Testudinella caeca, specimen with retracted corona, so the projection at the antterior end of the dorsal lorica becomes visible. According to Koste (1978) this species is the only one of the genus Testudinella that does not have red eyespots. So this image was taken with brightfield illumination to better demonstrate that there are no red spots. (1) |
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| Testudinella caeca, malleoramate trophi; left: focal plane on the manubria, right: focal plane on the unci with 11/11 dents. Images not to scale. (3) |
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