And below is my scale comparison, this time also incorporating the eyes for each type. It turns out the eyes for Wildmen and Sasquatch are about the same absolute size in either case, but proportionately very much smaller in the faces of the Giants. The "Water-Goblins" were something I had added on a similar chart I drew while at SITU HQs in the mid-1970s. I thought from the eyes they might be a type of lemur, and they were indicated by a series of the "Little Hairy Men of the Delta" reports off of John Keel's listings for sightings in the Eastern USA. Shortly thereafter, I dropped the category as sounding too "Far Out" But now I can see what is going on with those reports better, since Tyler Stone articulated the theory to me over again in a clearer way. I had also included the Kelly-Hopkinsville "Goblins" on the theory the big head could have been the effect of a large mane of hair on the head, and asuming there was no real connection to any UFO report then. The hands and feet of the Kappa are meant to represent webbed fingers and toes and yes, the category is now intended to include Loveland "Frogs" (Now reconfigured as "Loveland Kappas")
PS, the mane could also be less extensive in females, accounting for some sightings seeming to have less less covering over the ears, for example. The mane could also lie flatter when wet and slicked-down. Wetter hides ARE remarked on as being very reflective in some cases and the creatures can look greenish when covered in algae or duckweed. They ARE "Goebelins" in Europe as well.
'Goblins were described as 2–3 feet tall, thin, and brown. Most were bald and "if there were females among the group they could not be distinguished from the males".' From which it seems that the sex organs are unclear to humans and the females do not have prominent breasts: "Most were bald" means they have an apparent bald spot on the tops of their heads, the same as the Kappas do. They seem to have prominent ischial callosities and also cheek pouches to store food in. And incidentally they would seem to maintain a pecking order by males mounting subordinate males, same as in ordinary macaques: there are many stories of goblins attempting buggery of human males.