Dispater was a god of growth and fertility, and besides being lord of the underworld of the dead, not necessarily a dark region or the abode of "dark" gods as is so often assumed by writers on Celtic religion, he was ancestor of the living. This may merely have meant that, as in other mythologies, men came to the surface of the earth from an underground region, like all things whose roots struck deep down into the earth. The lord of the underworld would then easily be regarded as their ancestor.[105] 3. The hammer and the cup are also the symbols of a god called Silvanus, identified by M. Mowat with Esus,[106] a god represented cutting down a tree with an axe. Axe and hammer, however, are not necessarily identical, and the symbols are those of Dispater, as has been seen. A purely superficial connection between the Roman Silvanus and the Celtic Dispater may have been found by Gallo-Roman artists in the fact that both wear a wolf-skin, while there may once have been a Celtic wolf totem-god of the dead.[107] The Roman god was also associated with the wolf. This might be regarded as one out of many examples of a mere superficial assimilation of Roman and Celtic divinities, but in this case they still kept certain symbols of the native Dispater--the cup and hammer. Of course, since the latter was also a god of fertility, there was here another link with Silvanus, a god of woods and vegetation. The cult of the god was widespread--in Spain, S. Gaul, the Rhine provinces, Cisalpine Gaul, Central Europe and Britain. But one inscription gives the name Selvanos, and it is not impossible that there was a native god Selvanus. If so, his name may have been derived from _selva_, "possession," Irish _sealbh_, "possession," "cattle," and he may have been a chthonian god of riches, which in primitive communities consisted of cattle.[108] Domestic animals, in Celtic mythology, were believed to have come from the god's land. Selvanus would thus be easily identified with Silvanus, a god of flocks. Thus the Celtic Dispater had various names and forms in different regions, and could be assimilated to different foreign gods. Since Earth and Under-earth are so nearly connected, this divinity may once have been an Earth-god, and as such perhaps took the place of an earlier Earth-mother, who now became his consort or his mother. On a monument from Salzbach, Dispater is accompanied by a goddess called Aeracura, holding a basket of fruit, and on another monument from Ober-Seebach, the companion of Dispater holds a cornucopia. In the latter instance Dispater holds a hammer and cup, and the goddess may be Aeracura. Aeracura is also associated with Dispater in several inscriptions.[109] It is not yet certain that she is a Celtic goddess, but her presence with this evidently Celtic god is almost sufficient proof of the fact. She may thus represent the old Earth-goddess, whose place the native Dispater gradually usurped.