@princeofcups Sentient skips are almost always Elucid. Series 1 are kind of a mess because the site was in it's infancy. However, this is from a foreign branch of the foundation so their standards may be more lax. But sentience in contemporary times means Elucid.
A telepathic sentient shark with a good attitude and enthusiastic for the cause, he would be a great addition specially to deal with those SCPs that are specialized to only target humans and ignore everything else.