“Crouching Spider,” a notable piece in artist Louise Bourgeois’ “Spider” series, stood at the entrance of the Embarcadero at Pier 14 for the last 17 months. On leave from the artist’s galleries, Gallery Paule Anglim in San Francisco and Cheim & Read in New York, the sculpture was dismantled in order to be transported to its new home at a private collection in Houston, Texas.