''"i89o"''] PROCEEDINGS OF THE NATIONAL MUSEfTM. Ill 



tweeu front of dorsal and tip of suout. Caudal very short and bluntly 

 rounded, as in 0. taylori, the rays not projectinjj beyond dorsal and 

 anal. Pectorals If in head. Ventral filament half head. 



Scales as in taylori^ not at all imbricated, arranged with their long 

 axes frequently at right angles to each other. Head naked. 



Color : Light olive, without bars, a narrow dusky streak along base 

 of dorsal, and a round light spot at origin of dorsal. A series of small 

 olive brown spots along lateral line, with a few scattering spots below 

 it but none above. Nape and head without spots. Vertical fins trans- 

 lucent. Dorsal with a large black blotch ou tip of anterior rays, thj 

 fin behind this uarrowly edged with black, which does not surround 

 the caudal. Anal with much silvery-white pigment anteriorly ou dis- 

 tal portion, becoming dusky behind. Pectorals translucent, edged with 

 white below. Peritoneum, buccal, and gill cavities white. 



One specimen, bh inches long, from Station 302.'5, in 9i fathoms. 



77. Cateetyx rubrirostris sp. uov. 



Closely related to C. messier i^ differing in the shorter, broader snout, 

 the wider preopercle, the more anterior origin of anal, and apparently 

 in the gill-rakers and pores on head. 



Depth of body below origin of dorsal equals one-third distance from 

 end of snout to vent, 7 in length; head 4; distance from snout to origin 

 of dorsal 3J-; from snout to vent 2f; maxillary extending beyond eye, 

 2| in head; eye equaling snout, 5.^ ; interorbital width 7; width of 

 snout ^. 



Teeth iu upper jaw in a narrow band, minute, compressed, narrowly 

 triangular, none of them enlarged. In the lower jaw a still narrower 

 band of similar teeth, the posterior row slightly enlarged, and increas- 

 ing a little in size on sides of jiw, where it is accompanied by a single 

 series only of the smaller teeth ; this lateral series is continued back- 

 wards far beyond premaxillary band. Teeth on vomer and palatines 

 similar to those in sides of lower jaw, the former in a V-shaped patch, 

 the latter in a long and very narrow baud. 



Anterior nostril in a short tube at tip of snout, the posterior large, 

 without tube, immediately in front of eye. System of mucous pores 

 well developed but not conspicuous, the pores collapsing on account of 

 the thinness of the skin covering head. The large mucous tube below 

 eye extends around front of snout and opens by slit-like pores along 

 edge of snout and lower margin of infraorbital flap; it opens ])0s- 

 teriorly by a vertical slit half as long as pupil, immediately above end 

 of maxillary. Another series of pores along mandible and at edge of 

 exjianded limb of preopercle. No other evident pores. 



Angle of preopercle much expanded, its width equaling diameter of 

 pupil. A sharp strong spine arising from anterior portion of opercle, 

 the structure of the gill-flap apparently like that of N'eohythltes sielli- 

 feroides. A short sharp spine directed backwards immediately behind 



