PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 107 



of the third ray ou each side ; rays usually only once bifurcate. Ven- 

 trals small ; their posterior axil about half the width of the pectoral base 

 in advance of the anterior axU of that fin, their tips extendinji' beyond 

 the anus ; four lower rays bifurcate. Pectoral of colored side lanceolate, 

 about half the length of the head ; third ray longest, second slightly 

 shorter ; all the rays but the three uppermost once bifurcate. Pectoral 

 of blind side shorter, the central rays longest ; most of the rays once 

 bifurcate. Scales of body and cheeks ctenoid, the spines w^ll developed, 

 1 hose on the cheeks similar; no stellate or rugose scales on any part. 

 Small ctenoid scalesi on interorbital area ; snout and loAver jaw scaleless. 

 A row of ctenoid scales along each ray of dorsal and anal fins on the 

 colored side, except upon a few of the anterior rays and those posterior 

 ones which incKne forwards. The scales extend to the tips of the rays. 

 Similar scales upon the colored side of the caudal for the greater portion 

 of the length, and some on the outside of the pectoral. Scales of blind 

 side smooth; preopercular bone scaleless; the other opercular bones 

 partially so. A row of smooth scales along the front edge of each ray 

 of the central portion of dorsal and anal on the blind side, not extend- 

 ing above ^ of the length. Lateral line with about 82-86 scales ; a more 

 or less conspicuous arch above the pectoral, in most cases rising about 

 two scales high. Accessory lateral line ending below the 2;3d-27th dor- 

 sal ray on the colored side, and below the lGth-21th ray on the blind 

 side. A branch from the main lateral line joins the accessory hue a 

 little posterior to its origin, the accessory line forming- an obtuse angle, 

 or sometimes branching, at the junction. Color nearly uniform grayish 

 brown on the colored side; blind side white. Each scale of colored side 

 with a dark band behind the spines, then a light area. Fins on colored 

 side nearly the same color as the body. 



Dimensious. 



Total length, in iuches 



Length without caudal 



Greatest depth of body 



Greatest distance between anal and straight portion of late- 

 ral lino 



Tip of lower jaw to origin of anal 



Length of head 



Length of snout, from upper eyo 



Longitudinal diameter of eye 



Width of interocular space 



Length of lower jaw 



Length of pectoral, colored side 



Length of pectoral, blind side 



Length of ventrals 



Width of caudal peduncle 



Length of longest dorsal rays 



Length of longest anal rays - ■ 



Number of dorsal rays 



Number of anal rays • 



Lateral line 



111 

 2J 



85 



66 



ca.86 



S5 

 00 



68 

 ca.84 



90 



07 



ca.82 



