THE missing head of a boyfriend who was allegedly murdered and dismembered by his Beauty and the Geek star girlfriend has been found.

The loose dome belonged to Julian Story, 39, who was allegedly killed by partner Tamika Chesser, 34, in South Australia.

A dog and its owner walking through scrubland in Port Lincoln, about 250km (155miles) west of Adelaide, made the grisly discovery when the pooch ran off and didn’t return.

SA Police Major Crime boss Darren Fielke said on Thursday: “Earlier today, police received information from a member of the public in Port Lincoln that they had located in a scrub area what appeared to be a human skull

“There are some walking tracks through there, my understanding is the person who contacted us today was walking their dog in the area. The dog ran off into the scrub, it didn’t come back when called.

“They had to walk into the scrub area to find it [the head]. [The remains] were not buried. They were quite out in the open.”

The remains are now set to be tested and forensically confirmed as those of Julian’s.

Fielke said: “Julian’s family have been contacted today and provided an update in relation to what has been located and what the ongoing process is from here.

“Hopefully we can give them some comfort that we have found all the remains of Julian.”

Officers made the grim discovery last month after responding to reports of a small fire.

Chesser was arrested two days later under the Mental Health Act and charged with murder.

Cops are yet to interview her with the reality TV star being kept in a mental health facility.

She appeared in Port Lincoln Magistrates Court via video link on Thursday for three separate matters.

Last month, police circulated CCTV footage and stills of a woman alleged to be Chesser strolling through Port Lincoln hours after the alleged murder.

The woman was seen with three dogs — dressed head-to-toe in black with a head covering, cops said.

Court documents reveal officers found Chesser sitting in the back garden of the property “in a catatonic and unresponsive state” before arresting her.

She’s also been charged with disposing of human remains to pervert the course of justice and assaulting a police officer, The Telegraph reports.

Police have said there’s no obvious motive, with Assistant Commissioner Ian Parrott admitting there were still “a lot of unanswered questions” in what he described as a complex crime scene.

Chesser’s sister, Kiya-May, claimed her family is shattered by reports she’d been charged with murder.

They told Daily Mail Australia: “Please report how my sister is in a mental psychosis… This is not her… She would never do these things.”

She added her sister had suffered “a life of trauma and abuse, and now this – it has fried her brain”.

Meanwhile, Mr Story’s grieving family has thanked police, emergency workers and the community for their support during what they called an “unimaginable loss”.

Chesser appeared on Season 2 of the hit show in 2010 aged just 19.