Observations on the Compound Eyes of the Deep-Sea Ostracod Macrocypridina Castanea

Observations on the Compound Eyes of the Deep-Sea Ostracod Macrocypridina Castanea
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深海介形类栗复眼的观察

DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
D. Nilsson
D. Nilsson
中科院分区：
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文献类型：
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作者：
M. Land;D. Nilsson

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macrocypriina生活在800米深处，那里的剩余日光非常微弱。它有一对大晶状体、宽横纹和高接受角度的可移动对视复眼，所有这些都有助于计算灵敏度，可与深水十足甲壳类动物的对视眼睛相媲美。每只眼27个小眼的轴在空间上分布不均匀，在前腹区有中度急性区。此处眼间角约为6°，而眼后部为20°。
Macrocypridina lives at depths of 800 m, where residual daylight is very weak. It has a pair of mobile apposition compound eyes with large lenses, wide rhabdoms and high acceptance angles, all of which contribute to a calculated sensitivity comparable with the superposition eyes of deep-water decapod crustaceans. The axes of the 27 ommatidia in each eye are not uniformly distributed in space, with a modest acute zone in the anteroventral region. Here the interommatidial angles are about 6°, compared with 20° at the rear of the eye. The eyes make two kinds of spontaneous movements: large slow rotations of up to 50° around a transverse axis, anda superimposed 2 Hz tremor with an amplitude of 5°.