robert m. price cites two works as literary sources for "the shadow over innsmouth": robert w. chambers' "the harbor-master" and irvin s. cobb's "fishhead". chambers' story concerns the discovery of "the remnants of the last race of amphibious human beings," living in a five-mile deep chasm just off the atlantic coast. the creature of the title is described as "a man with round, fixed, fishy eyes, and soft, slaty skin. but the horror of the thing were the two gills that swelled and relaxed spasmodically." lovecraft was evidently impressed by this tale, writing in a letter to frank belknap long: "god! the harbour-master!!!" "fishhead" is the story of a "human monstrosity" with an uncanny resemblance to a fish: his skull sloped back so abruptly that he could hardly be said to have a forehead at all; his chin slanted off right into nothing. his eyes were small and round with shallow, glazed, pink-yellow pupils, and they were set wide apart on his head, and they were unwinking and staring, like a fish's eyes. lovecraft, in "supernatural horror in literature," called cobb's story "banefully effective in its portrayal of unnatural affinities between a hybrid idiot and the strange fish of an isolated lake". price notes that fishhead, as the "son of a negro father and a half-breed indian mother," "embodies unambiguously the basic premise of "the shadow over innsmouth"... this, of course, is really what lovecraft found revolting in the idea of interracial marriage...the subtextual hook of different ethnic races mating and 'polluting' the gene pool." price points out the resemblance in names between the deep one city of y'ha-nthlei and yoharneth-lahai, a fictional deity in lord dunsany's "the gods of pegana," who "sendeth little dreams out of pegana to please the people of earth"—a precursor to lovecraft's fictional deity cthulhu, who sends less pleasant dreams from r'lyeh.