It sometimes exists as a separate piece, and is then called the lesser lacrimal bone.
[2][3] This completes the upper orifice of the lacrimal canaliculus.
[4] The lacrimal hamulus develops from its own site of primary ossification of cartilage.
Because of this, it sometimes exists as a separate piece, and is then called the lesser lacrimal bone.
This article incorporates text in the public domain from page 164 of the 20th edition of Gray's Anatomy (1918)