Gyrinophilus subterraneus, a New Troglobitic Salamander from Southern West Virginia

Gyrinophilus subterraneus sp. nov., from a cave in Greenbrier Co., West Virginia, is a transforming troglobitic species. Its larvae are distinguishable from larval G. porphyriticus in attaining greater body size, in having a paler, fleshy ground-color with distinct dark reticulations, in having a wider head, in having more premaxillary and prevomerine teeth and in having smaller eyes. Transformed G. subterraneus differ from transformed G. porphyriticus in retaining the pale, reticulated color pattern of larvae, in having an indistinct canthus rostralis and in having histologically reduced eyes. Additionally, the pars dentalis of each premaxilla is fused in contrast to their unfused condition in most G.