24, 54 Atl. 487. A joint interest is one owned by several persons in equal shares, by a title created by a single will or transfer, when expressly declared in the will or transfer to be a joint tenancy, or when granted or devised to executors or trustees as joint tenants. Civ. Code Cal. § 683.—Several tenaney. A tenancy which is separate, and not held jointly with another person.—Tenancy at sufferance. This is the least and lowest estate which can subsist in realty. It is in strictness not an estate, but a mere possession ony. It arises when a person, after his right to the occupation, under a lawful title, is at an end, continues (having no title at all) in possession of the land, without the agreement or disagreement of the person in whom the right of possession resides. 2 Bl. Comm. 150.