| Philinopsis pilsbryi is considered as one of the smallest opistobranch. The size range of an adult is from 55mm to 75 mm (Rudman 1972a). This size is a perfect characteristic to allow this species to crawl in corals or to simply burrow in the sand. |
Picture 1: Philinopsis Pilsbryi crawling between corals (Picture Alice C.)
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