Preliminary notices of deep-sea fishes collected during the voyage of the H. M. S. “ Challenger ” Author Günther, Albert C. L. G. text Annals and Magazine of Natural History 1878 5 2 17 28 journal article 10.5281/zenodo.28079 101EC135-709C-48A6-9878-C4371F19409C Bathynectes , g. n. Ophidiid . Anterior part of the body rather compressed, posterior produced into the long tapering tail, without caudal. Snout not swollen, with the jaws equal or nearly equal in front. Mouth very wide, with the teeth in villiform bands in the jaws, on the vomer and palatine bones. Barbel none. Ventrals reduced to simple or bifid filaments, placed close together and near to the humeral symphysis. Gill-membranes not united. The gill-laminie are remarkably short; the middle pieces of the first branchial arch have the gill-rakers of the outer series much elongate, stiff. Bones of the head soft and cavernous. Operculum with a very feeble spine above. A true deep-sea form allied to Sirembo .