Police have called for the public's help to identify remains found in Ricketts Point last year.

Mystery continues to surround the identity of a woman whose bones were found at a Melbourne beach 18 months ago.

More than 400 bone fragments were discovered in the foreshore rock pools at Ricketts Point in Beaumaris on January 11 last year.

Months of testing was carried out by staff at the Victorian Institute of Forensic Medicine.

It showed the bones likely belonged to a woman aged over 20, however detectives believe the bones were only recently placed in the rock pools, given their location and changing tides.

While testing continues, police are turning to the public for answers, releasing images today of the scene at Ricketts Point showing where the bones were found.

Missing person files have provided no further leads in the unusual case, and police cannot say for certain it’s suspicious.

“Over the past 18 months we’ve done an enormous amount of work trying to determine exactly who this woman is,” Detective Sergeant Maurie Ryan said.

“Was she left here by loved ones? Was she murdered? We just don’t know.

“The circumstances of these bones being located are certainly unusual, however we can’t definitively say that it’s suspicious at this stage.

“Some of the best forensic scientists in Victoria have examined these bones, and while they have been able to provide us with some information, it alone hasn’t been enough to solve the case.”

Police hope the appeal prompts someone to come forward with information about how the bones came to be in the rock pool or who might have left them there and why.

They are also keen to speak to anyone who witnessed any suspicious activity in the area around the time the bones were discovered.

“There is definitely a story behind these bones, and it’s one we want to know — and there will definitely be someone out there who can tell it to us,” Sgt Ryan said.

Examination of a recovered mandible bone also revealed the back teeth on each side of the lower jaw were missing pre-death, police said.