COATESVILLE, PA. — A dog’s head in a freezer was one of many grisly discoveries investigators made Monday night at a Chester County residence that appeared to be a site for ritualistic animal sacrifices.

Rich Britton, a spokesman for the Chester County SPCA, said his agency was contacted by police yesterday and executed a search warrant at a home in the 2400 block of Wayne Avenue in Caln Township.

Britton said he and two animal protective-services officers entered the home’s living room, where a gold-leafed animal skull was displayed on a coffee table, and a 10-inch animal vertebrae sat on a fireplace mantel. Also in plain view was a necklace that appeared to be made of canine teeth and four or five knives and machetes, Britton said.

Two more skulls that appeared to be canine were in the kitchen, along with a drawer of animal bones, four occult books, and a workbench with gold-leafing materials, he said. Investigators found the dog’s head in the freezer, Britton said.

“I’ve never seen anything like this in my life,” said Britton, describing the findings as “macabre and Dahmeresque” in a “nice, typical suburban” neighborhood.

When police first confronted Wisconsin serial killer Jeffrey Dahmer in his apartment in 1991, a human head was found in a refrigerator, and victim’s skulls and other body parts were also found.

Outside, SPCA investigators found a firepit, charred animal remains, more skulls, a tree with chicken parts and bones hanging from it, and a chicken coop, where two live chickens were rescued, Britton said.

“The Caln Township police did a great job of investigating this and calling us in,” said Britton.

He said Caln Township police had two people in custody. Police, however, would not confirm that, referring all questions to the Chester County District Attorney’s office, which did not immediately return telephone calls.