692 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
snout 3.8; protruding portion of mandible 7; length of maxillary 1.9; maxillary reaching a vertical 
from front of pupil. D. m-ii-8; A. 7; P. 21; V. i, 5; C. 8; branchiostegals 6; vertebrae 18. 
Teeth in front of mandible in about 3 series; inner series much the longest; all depressible, except 
some of smaller teeth of outer row; laterally, the mandibular teeth are reduced to a single series; 
premaxillary teeth in 2 series; in outer series, 5 or 6 of anterior teeth closely spaced, of moderate length, 
depressible; lateral teeth about 10 in number, short, rigid, widely spaced, slightly increasing in length 
toward angle of mouth; a single vomero-palatine series of very unequal teeth; each lower pharyngeal 
with 2 series of long teeth diverging backward; a few similar teeth forming a transverse series on each 
upper pharyngeal; gills 3, the fourth arch without filaments; no gill-rakers; pseudobranchiae present; 
gill-opening unusually wide, the membranes free from arm along entire anterior, inferior and posterior 
aspects of the latter, attached only to a portion of superior side of arm ; supraocular rim composed of a 
projecting thin lamella strengthened by 3 ridges which radiate outward and forward, and terminate in 
short spines; two of these project outward above posterior half of eye, the third directed forward, its 
tip in advance of pupil; a short spine rises vertically from the point on interorbital space to which 
these ridges converge; immediately behind upper part of orbit, a spine marks inner end of a blunt 
transverse ridge; behind middle of eye are 3 lower points arranged in a lengthwise series, the anterior 
2 connected by a ridge; other spines on occiput and opercular bones occupy the usual position; 
occipital ridges prominent, bearing each a single spine, and then turned obliquely outward and back- 
ward; nasal spines double; immediately behind them, the anterior and posterior nasal openings are 
found near the tip of the heavy club-shaped nasal tubercle. 
Anterior 2 dorsal spines close together near tip of snout; the first but little shorter than the second, 
which extends a little beyond base of third; first spine black, terminating in a small but conspicuous 
short, white, fleshy tip, which narrows to a minute cirrus; second spine grayish, without tentacles or 
flaps; third spine located directly between the 2 occipital spines, and reaching with its tip to or slightly 
beyond origin of soft dorsal; at beginning of its terminal fourth it is bordered by a short membranous 
expansion, which rapidly tapers and disappears; the terminal fourth is white, and a dusky bar fre- 
quently crosses membrane; second group of dorsal spines represented by a single very weak spine 
shorter than pupil, with sometimes the rudiment of a second; last dorsal and anal rays not bound 
down to caudal peduncle. 
Labial fringes well developed; a series of slender nearly simple filaments accompanying lateral 
line; abdomen covered with widely spaced short fimbriated flaps, some wide and some narrow 2 * * * * 7 , these 
white in color on a dark background, and very conspicuous. 
