Cyamus scammoni

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Gray whale lice:
Gray whale lice (Cyamus scammoni): This is the most common species of whale lice on the Gray Whale (Eschrichtius robustus). It is distinguished from Gray and Bowhead Whale Amphipod (Cyamus ceti) and Little Gray Whale lice (Cyamus kessleri) by its branched gills which look like tiny looped noodles attached to the ventral side. Also, C. kessleri is more likely to be found near the anal and vaginal slits when living on gray whales, and less likely to be found on the head of flippers areas.

Look closely: people tend to think that this animal's rear end is in fact its head.

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