CIIAliLIOnrS BARHATUS. 271 



at 2575 fathoms, and north of Now Guinea, at 2000 fatlionis. By the 

 'investigator," they were taken, in tlie Bay of Bengal, at 1500, and by the 

 "Albatross," between Central America and the CJalapagos Islands at 1201 

 fathoms. Representatives were also taken south of iS'ew Guinea, by the 

 " Challenger," at 800, off the coasts of Morocco, by the '" Talisman," at G14, 

 and by the " Albatross," off Alaska, at 870 fathoms. An .-ipparently new 

 species for which no definite depth is known is described below. The dis- 

 tribution for the entire family, both horizontal and vertical is sufficiently 

 apparent in the list of species. 



Chauliodus barbatus sp. n. 



Plate K,fi<j. 2,2a. 



Br. r. 22 ; D. G ; A. 12-13 ; V. 7 ; P. 11 ; LI. 01. 



jModerately elongate, compressed, greatest depth nearly one seventh and 

 greatest width one eighteenth of the total length, tapering to a depth of one 

 thirty-sixth and a width of half as much in the caudal pedicel. Head short, 

 as deep as long, profile slightly concave above the snout and indented at 

 the end of the chin in front of the barbel, convex across the crown. Snout 

 blunt, about twice as long as the eye, with an angular prominence at the 

 symphysis of the lower jaws. Eye medium, two elevenths of the length of 

 the head. Mouth large, lower jaws little shorter than the head, oblique, 

 intermaxillaries forming more than half of the upper border. Teeth few 

 large and fang-like on intermaxillaries and dentaries, numerous, small, 

 comb-like and inclined backward on the maxillaries. On each intermaxil- 

 lary there are four fangs, the longest twice the length of the eye. Not 

 counting the very small one at the symphysis there are seven fangs on each 

 lower jaw, the foremost half as long as the head and the others decreasing 

 in size backwards. On each palatine there are two small widely separated 

 teeth, and directed outward from the base of the largest fang in the upper 

 jaw there is a single tooth. Nostrils small, close together, nearer to the 

 upper part of the eye than to the end of the snout, anterior smaller. 

 Barbel with a rigid cartilage, half as long as the eye, resting with the free 

 end forward in the notch at the end of the chin where it is further pro- 

 tected by the folds of the skin and the bones between which it lies. Gills 

 four, a short slit behind the fourth ; lamella? short ; rakers obsolete ; arches 

 weak; openings veiy wide; membranes free, not nnited to the isthmus. 



