YES, the symptoms of the two forms are very different. = Until the victim is bitten or scratched, the carrier of "the dumb form" may exhibit few or NO obvious symptoms, other than a "certain unsteadiness, shortly before death occurs" upon their feet/paws.
(4 of the 6 survivors of the disease were infected by mammals that had the "dumb or silent form". - In one of those cases, the infection likely occurred from the saliva, urine or feces of an infected bat, with "actual contact with those substances" in a cave more than a year before the symptoms manifested themselves. - The 6th patient MAY have contracted his illness from "hand to mouth contact" with saliva of an "unknown source".)
As to latency period, the USDA GUIDE TO DISEASES OF LIVESTOCK FOR FARMERS, RANCHERS & STOCKMEN that I consulted, the obvious symptoms (IF ANY) of the disease may appear in as little as 5 days up to more than 2 years.
(The book says that the exact progression from infection is "variable" & "possibly unknowable".)
Both the "furious" & "dumb" forms MAY occur in "household pets, wildlife & domestic livestock", Worldwide.
(The book does not say raccoons or squirrels, specifically.)
As to genus, I had to go dig out one of my DoD PAMs from USAREUR Vector Control School. - The genus of all the KNOWN viruses is: Lyssavirae.
(The USAREUR 10th MedLab/MEDDAC-PAM indicates that it is POSSIBLE that there may be other tropical viruses that can cause rabies or "a similar & equally deadly disease", that are "are believed to have been contracted" from exposure to the body fluids of reptiles, birds & insects, as well as mammals.)
Fwiw, I'm neither a health professional nor a scientist, so I consulted the few sources that I had at hand.
yours, satx