Phyllidia varicosa
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| Phyllidia varicosa | |
|---|---|
| A live individual of Phyllidia varicosa, head end towards the left | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Nudibranchia |
| Superfamily: | Phyllidioidea |
| Family: | Phyllidiidae |
| Genus: | Phyllidia |
| Species: | P. varicosa |
| Binomial name | |
| Phyllidia varicosa | |

Phyllidia varicosa is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Phyllidiidae.[2]
This species is widely distributed throughout the Indo-West Pacific Oceans including the central Pacific and the Red Sea.[3]
Description
This is a large species growing to at least 115 mm. It can be distinguished by its numerous (3 to 6), longitudinal, tuberculate notal ridges. The ridge and bases of the tubercles are a blue-grey colour. The tubercles are capped in yellow. The foot sole has a black longitudinal foot stripe. The rhinophoral clavus possesses 27 to 30 lamellae.[4]