Chromidina
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| Chromidina | |
|---|---|
| Chromidina sp. | |
| Scientific classification | |
| Domain: | Eukaryota |
| Clade: | Sar |
| Clade: | Alveolata |
| Phylum: | Ciliophora |
| Class: | Oligohymenophorea |
| Order: | Astomatophorida |
| Family: | Opalinopsidae |
| Genus: | Chromidina Gonder, 1905[1] |
| Species | |
| |
Chromidina is a genus of apostome ciliates of the family Opalinopsidae. Species of Chromidina are parasitic [4][5][6] in the renal and pancreatic appendages of cephalopods.

In 2016, a molecular study found that the closest relatives of Chromidina spp. were species of the apostome Pseudocollinia.[2]