Dr. Cyril Mootoo, the Guyanese government physician who examined the bodies of those who died at Jonestown, said today that he had been unable to positively determine whether the Rev. Jim Jones committed suicide or was shot by one of his followers.

Mootoo said Jones definitely died of a bullet wound that pierced his skull, entering above the right ear and exiting through the head on the left.

Mootoo testified during an official government inquest into the Jonestown deaths that Jones' wound was caused by a "near discharge," probably from a .38 caliber weapon, and that the entrance area of the bullet was "one of the suicide areas for a right-handed person."

Mootoo failed to say during the hearing, however, whether Jones was right-handed. Testimony was relayed by a diplomatic observer who took notes at the inquest, which is being held at Matthews Ridge about 35 miles from Jonestown.

Mootoo, a physician, also testified that only two persons among those he examined-rather than three as Guyanese police originally said-were found dead of bullet wounds. Besides Jones, Mootoo said the second person to die of a bullet wound was Ann Elizabeth Moore, said to be one of Jones' mistresses, whose body was found in the house where Jones lived.

Moore's wound, Mootoo said, was "not self-inflicted." Originally, Guyanese assistant police commissioner C.A. (Skip) Roberts, who also testified today, said that Maria Katsaris, another of Jones' mistresses, had died of a bullet wound.

However, reporters who visited Jonestown immediately after the Nov. 19 mass suicide-murder in which more than 900 died could see no bullet wound on Katsaris' body. Today, Mootoo said she died of cyanide poisoning.

Neither Mootoo nor Roberts gave any indication during their testimony of how many persons they thought voluntarily had drunk the Peoples Temple poison and how many were forced to drink it.

Mootoo testified that he had done 56 autopsies during the first days after the Jonestown tragedy was officially discovered on the evening of Nov. 20. He mentioned nothing about finding syringe marks on any of these bodies, as had been reported.

The government pathologist outlined his findings before Magistrate Haroon Bachus and five jurors chosen this afternoon form among residents of Matthews Ridge. The inquest, which will continue Thursday, is to determine the cause of death of the Jonestown residents so that death certificates can be issued. CAPTION: Picture, Larry Layton is led from Georgtown courthouse. UPI