692 



UULLKTIN OP' THK UNITED STATES FISH COMMISSION. 



tinnnt ."...S; iirotniding iidi-tioii "i ijiamlilili' 7; leiijitli of juaxillarv 1.9; maxillary reaching a vertical 

 from front of jiiipil. IJ. ui-ii-8: A. 7; I'. L'l; V. i, 5; (''. S; branchiustegals 6; vertebrje IS. 



Teeth in front of mandible in abont 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; 

 prema'xillarv teeth in 2 series; in outer series, 5 or 6 of anterior teeth closely spaced, of moderate lengtli, 

 depressible; lateral teeth about Id in munber, short, rigid, widely spaced, slightly increasing in length 

 to\vai<l angle of mouth; a single vomero-palatiue series of very unequal teeth; each lower pharyngeal 

 with 2 series of long teetli diverging backward; a few similar teeth forming a transverse series on each 

 upper pliaryngeal; gills H, the fourth arch without filaments; no gill-rakers; pseudobranchi;e present; 

 gill-opening unusually wide, tin- inenibranes free from arm along entire anterior, inferior and posterior 

 aspects of the latter, attaclied only to a jiortion of sui^erior side of arm; supraocular rim compo.sed of a 

 projecting thin lamella strengthened by 3 ridges which radiate outward ami forward, and tenninate in 

 short spines; two of these jiroject outward above posterior half of eye, the third directed forward, its 

 tip in advance of i>uiiil; a short sjiine rises vertically from the point on interorbital space to which 

 these ridges converge; immediately behind ui)per part of (jrbit, a spine marks inner end of a blunt 

 transver.se ridge; behind miildleof eye are 3 lower ]ioints arranged in a lengthwise series, the anterior 



Fig. 27;^. — Li)}'ltiiiiiiti^ nnarntif!in>^ (TilliiTt, lip\\' .speru'S. Type. 



2 connected by a ridge; other spines on in-ciput and o])ercular bones occui.>y the usual position; 

 occipital ridges prominent, liearing each a single spine, and then turned obliquely outward and back- 

 ward; nasal .spines double; innnediately behind them, tlii' anterior and posterior nasal openings are 

 found near the tip of the heavy club-sha]ied nasal tul)ercle. 



Anterior 2 dorsal sj lines clo.«e together near tip of snout; the lirst but little shorter than the second, 

 which exten<ls a little beyond base of third; first .«|iine black, terminating in a small but conspicuous 

 short, wliite, fleshy tip, which narrows to a miiiule cirrus; second spine grayish, without tentacles or 

 flaps; third .spine locatcMl directly between tlu' 2 occi|iit;d sjiines, and reaching with its tip to or Slightly 

 beyond origin of .soft ilon^al; at begimiing of its terminal fourth it is bordered by a short membranous 

 expansion, which rapidly tapers and disap])rars; 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 pujiil, with sometimes the ludiiiieiit of a second; last dorsal and anal rays not bound 

 down to caudal jK'cluncle. 



Labial fringes well developed; a series of .slender nearly simjjle filaments accompanying lateral 

 line; abdomen covered with widely sjiaced short fimbriated flaps, some wide and some narrow, these 

 white in color on a dark backuround. and very ciMis|iiciiou.s. 



