CREATE TABLE table_name_24 (name VARCHAR(255), novelty VARCHAR(255), location VARCHAR(255), status VARCHAR(255), authors VARCHAR(255))
What is Name, when Status is Valid, when Authors is Maisch, when Location is Tanzania, and when Novelty is Gen Et Sp Nov?
    
SQL: SELECT name FROM table_name_24 WHERE status = "valid" AND authors = "maisch" AND location = "tanzania" AND novelty = "gen et sp nov"