ORLANDO, Fla. -- Bones found wrapped in a baby's blanket over the weekend during a search for missing Caylee Anthony belonged to a dog.

---

IMAGES: Images Of Casey's Arrest
IMAGES: Crowd Waves Signs; Cheers Arrest
IMAGES: Missing Caylee Anthony Photos
IMAGES: Photos Of Casey Anthony Surface

---

Volunteer searchers scoured remote areas and swamps in Central Florida searching for missing Caylee Anthony, 3, over the weekend and on Monday.

Searchers thought they had a break in the case when bones were found near the Anthony's Orange County home Sunday. However, it was determined that someone had wrapped a dead dog in a baby blanket.

During Monday's search, several other piles of bones were found on Lee Vista Boulevard.

"It looks like a spine or backbone," searcher Martin Krasinsqui said.

The new bones were marked for investigators.

Dismal Turnout Over Weekend

Meanwhile, a weekend call for volunteers to search for Caylee drew only a handful of people instead of a crowd of thousands originally expected.

"We usually have 1,000 to 2,000 a day (for a search)," Texas Equusearch official Mandy Albritton said. "Unfortunately, Saturday we only had 200."

Even fewer volunteers showed up for a Sunday search.

Some blamed the low turnout -- which was described as dismal -- on Caylee's mother, Casey Anthony.

"Regardless of what your opinion is about the family, the focus is on this little girl who needs to be found," volunteer Magie Woodward said.

"I'd like to see a better turnout," volunteer Lee Mann said. "There is so many people around here. Anybody could help."

"We need them to realize this search is not about the family," Albritton said. "This search is about brining this baby home. Whether to live out the rest of her life or rest -- it's a rescue mission."

The Orange County Sheriff's Office directed the teams to areas that needed to be searched Sunday.

"It's important that we find Caylee whether she is dead or alive," Orange County Sheriff's Sgt. John Allen said.

Saturday, a group of volunteers used sonar and a high-tech airboat to search Central Florida swamps and other remote areas for a missing Orlando girl.

"We still have that glimmer of hope that (Caylee) is still out there alive," Equusearch official Tim Miller said. "But our experience in 920-plus searches is that this is probably not going to end up good."

Watch Local 6 News for more on this developing story.