APPENDIX. 527 



Body very elongate, its height nearly equal to its thickness, and scarcely one-seventeenth 

 of its length; length of head one-eighth length of the body. Eead flattened, enveloped 

 in mucous skin: snout rounded; its length one-third thai of the bead. Mouth small, lips 

 thick, fringed; the upper jaw fastened far beyond the lower one, though the thickness of 

 the integumenl does not allow us to determine the point where the maxillary terminates. 

 Teeth very nearly conical, pointing backward, in both jaws; teeth also upon the vomer and 

 palatines. A single nostril is distinguishable, tubular, and placed far forward on the 

 border of the lip, so thai at ftrsl sight it might be mistaken for one of the mucous openings, 

 of which there are about six on the upper jaw. and tour or live in each branch of the low er 

 jaw. Eye superior, scarcely visible even in the fresh specimen, being hidden under the 

 skin: dia meter scarcely one ninth of the length of the head and one -third that of the muzzle 

 equaling the width of the interorbital space. The branchial opening is very large, though 

 the branchiostegal membrane does not adhere to the isthmus but by a very slight attach- 

 ment. The skin of the head is naked. 



The vent is found a little in advance of a point which is two-sevenths of the distance 

 from the tip of the snout to the tip of the tail. Scales, resembling pale spots, are very dis- 

 tinct on the posterior part of the body, and in the forward part of the body they may be 

 seen clearly on the ventral portion of the animal after it has been kept in alcohol. A lateral 

 line, scarcely distinguishable, is anteriorly nearly in the middle of the height, but poste 

 riorly descends close to the ventral line. 



Dorsals placed far back, commencing at the end of the anterior fourth of the length; the 

 origin of the anal still farther back. These fins are low, exactly similar, coalescing with 

 the caudal. Pectoral large, enveloped in a thick integument; its extremity does not reach 

 to the'vertical from the origin of the dorsal. The ventrals are represented each by a single 

 ray apparently, although it is probable that, in reality, there are several united in the same 

 cutaneous envelope. 



Color, in fresh condition, white, slightly bluish; with the head, and the dorsal and 

 ventral lines close to the base of the corresponding tins, a clear blue indigo; abdomen, 

 dark ; pectorals, ventrals, and the margin of the vertical tins, sepia brown; iris, bluish. 



Two specimens were obtained by the French explorers in the North Atlantic at station 

 133, in .'i,'.>7.") meters. 



Lycenchelys porifer, Cilbert (Proc. U. S. N. M., xnr, 1890, 104). A single specimen, 12 

 inches Ion-, was»obtained from Albatross station 3009,-off the coast of southern California, 

 in 857 fathoms. 



Page 313: Before Lycodopsis insert : 



APRODON, Gilbert. 



Jprodon, Gilbert, Proe. U. 8. X. M.. xm. 1890, L06. 



Differing from Lycodes only in dentition, the teeth being present in a single strong 

 series on the palatines, but none on the vomer. The genus is thus intermediate between 

 Lycodes and Lycodopsis. 



Represented by a single species, A. Gorteziana (loc. cit., 107), described from six speci- 

 mens obtained from Albatross stations 2925 and 2948, off the coast of southern California, 

 in 339 and 266 fathoms. 



Lycodopsis paxillus, Gilbert (Proc. ( ". S. N. M., xur, 1890, 105). A single specimen was 

 taken from Albatross station 2980, off the coast of southern California, in 603 fathoms. 



Lycodopsis paeificus, < 'ollett. was described from a specimen in the Berlin Museum, said 

 to have come. from Japan. There is no evidence that it was from deep water. 



After Lycodopsis insert: 



BOTHROCARA, Bean. 

 Bothrocara, I'.f.an, Proo. U. S. X. M.. xin. 1890, 38. 



This genus resembles Maynea, but the vomer and palate are toothless. Weak teeth in 

 the jaws in narrow- bands. The lower jaw is barely included. Pseudobranchise present. 

 Brauchiostegals, six. Gill-membranes narrowly attached to the isthmus. Large pores 



