Berosus was a Babylonian Priest who lived in about 330 to 260 B.C.

“Berosus, in the first book of his history of Babylonia, informs us that he lived in the age of Alexander, the son of Philip. And he mentions that there were written accounts, preserved at Babylon with the greatest care, comprehending a period of above fifteen myriads of years; and that these writings contained histories of the heaven and of the sea; of the birth of mankind; and of the kings, and of the memorable actions which they had achieved.

“And in the first place he describes Babylonia as a country situated between the Tigris and the Euphrates; that it abounded with wheat, and barley, and ocrus, and sesame; and that in the lakes were found the roots called gongæ, which are fit for food, and in respect to nutriment similar to barley. There were also palm-trees and apples, and a variety of fruits; fish also and birds, both those which are merely of flight, and those which frequent the water. Those parts of the country which bordered upon33 Arabia were without water, and barren; but that which lay on the other side was both hilly and fertile.

“At Babylon there was (in these times) a great resort of people of various races, who inhabited Chaldea, and lived in a lawless manner like the beasts of the field.

Oannes the Wise Fish that Walked

“In the first year there appeared, from that part of the Erythræan sea [Red Sea] which borders upon Babylonia, an animal endowed with reason, by name Oannes, whose whole body (according to the account of Apollodorus) was that of a fish; under the fish’s head he had another head, with feet also below similar to those of a man, subjoined to the fish’s tail. His voice, too, and language were articulate and human; and a representation of him is preserved even to this day.

“This being was accustomed to pass the day among men, but took no food at that season; and he gave them an insight into letters and sciences, and arts of every kind. He taught them to construct houses, to found temples, to compile laws, and explained to them the principles of geometrical knowledge. He34 made them distinguish the seeds of the earth, and showed them how to collect the fruits; in short, he instructed them in every thing which could tend to soften manners and humanize their lives. From that time, nothing material has been added by way of improvement to his instructions. And when the sun had set this being Oannes used to retire again into the sea, and pass the night in the deep, for he was amphibious. After this there appeared other animals like Oannes, of which Berosus proposes to give an account when he comes to the history of the kings. Moreover, Oannes wrote concerning the generation of mankind, of their different ways of life, and of their civil polity; and the following is the purport of what he said:—
Composite Beings

“There was a time in which there existed nothing but darkness and an abyss of waters, wherein resided most hideous beings, which were produced of a two-fold principle. There appeared men, some of whom were furnished with two wings, others with four, and with two faces. They had one body, but two heads; the one that of a man, the other of a woman; they were likewise in their several organs both male and female. Other human figures were to be seen with the legs and horns of a goat; some had horses’ feet, while others united the hind quarters of a horse with the body of a man, resembling in shape the hippocentaurs. Bulls likewise were bred there with the heads of men; and dogs with fourfold bodies, terminated in their extremities with the tails35 of fishes; horses also with the heads of dogs; men, too, and other animals, with the heads and bodies of horses, and the tails of fishes. In short, there were creatures in which were combined the limbs of every species of animals. In addition to these, fishes, reptiles, serpents, with other monstrous animals, which assumed each other’s shape and countenance. Of all which were preserved delineations in the temple of Belus at Babylon.

Omoroka

“The person who was supposed to have presided over them was a woman named Omoroka, which in the Chaldean language is Thalatth; which in Greek is interpreted Thalassa, the sea; but according to the most true interpretation it is equivalent to Selene the moon. All things being in this situation, Belus came, and cut the woman asunder, and of one half of her he formed the earth, and of the other half the heavens, and at the same time destroyed the animals within her (or in the abyss).

“All this” (he says)36 “was an allegorical description of nature. For, the whole universe consisting of moisture, and animals being continually generated therein, the deity above-mentioned (Belus) cut off his own head; upon which the other gods mixed the blood, as it gushed out, with the earth, and from thence men were formed. On this account it is that they are rational, and partake of divine knowledge. This Belus, by whom they signify Hades (Pluto), divided the darkness, and separated the heavens from the earth, and reduced the universe to order. But the recently-created animals, not being able to bear the prevalence of light, died. Belus upon this, seeing a vast space unoccupied, though by nature fruitful, commanded one of the gods to take off his head, and to mix the blood with the earth, and from thence to form other men and animals, which should be capable of bearing the light. Belus formed also the stars, and the sun, and the moon, and the five planets.” (Such, according to Alexander Polyhistor, is the account which Berosus gives in his first book.)” Smith, George. The Chaldean Account of Genesis, pgs. 32-36.