| 1. | Up to five pigment granules may be present clumped into a single mass.
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| 2. | A transparent globule may be present along with one to three pigment granules.
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| 3. | They adhere closely to the nucleus and have 1-2 pigment granules.
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| 4. | In occasion, pigment granules cause the presence of Brown spots.
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| 5. | Inside the chromatophore cell of cephalopods, pigment granules are enclosed in an elastic sac.
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| 6. | Conspicuous greenish-black pigment granules are located in a distinct vacuole.
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| 7. | One ot two small pigment granules may be seen.
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| 8. | The pigment granules occupy 0.8-1.3 square micrometres in area.
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| 9. | Their pigment granules concentrated in a single focus.
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| 10. | Because of this clumping, the number of pigment granules and their size are difficult to determine.
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