GILBEKT AND STAKKS — FISHES OF PANAMA BAY 



73 



Measurements in Hundredths of Length without Caudal. 



Length without caudal in mm 



Head 



Depth 



Eye 



Maxillary 



Snout to posterior margin of eye 



Snout to soft dorsal 



Snout to first anal ray 



Length of pectoral 



Length of caudal 



Longest dorsal ray 



Longest anal ray 



Number of dorsal rays 



Number of anal rays 



Number of a:ill-rakers 



225 



23 



30 



5 



14 



49 

 50 

 16 



27 



I2i 



lOi 



V-1,19 



11-1,20 



4-fio 



133. Oligoplites refulgens sp. uov. 



Plate XI, Fig. 19. 



Head 4f in body without caudal; depth 4*. Eye 4-^ in head; ma.xillary 2\\ snout 3|-. Inter- 

 orbital width little exceeding diameter of eye. Dorsal V- 1, 20; anal II-I, 19. 



Body more elongate than in other members of the genus; the ventral and dorsal outlines 

 similar and symmetrical, without angles at origin of dorsal and anal fins. 



Head pointed; its greatest width i\ in its length; its depth at point of occipital crest a little 

 anterior to edge of opercle, i^ in its length. Mouth comparatively small; its outline curved upward 

 anteriorly and downward posteriorly; lower jaw slightly the longer; maxillary scarcely reaching to 

 below middle of eye. Teeth on jaws in narrow bands which are scarcely as wide as exposed portion 

 of maxillary anteriorly. Bands on vomer and palatines wide, that on vomer about if as long as it 

 is wide, its greatest width in its anterior third or fourth; palatine bands at least twice as wide as those 

 on jaws. Tongue with minutely granular patches. 



Head entirely scaleless. Scales on body about as in the most conspicuously scaled examples 

 of O. saurits. Top of head and nape smooth as in O. saurus, without the conspicuous pores of 

 O. fnundus and O. altus. 



Insertion of ventrals about midway between base of first anal spine and the vertical from 

 anterior orbital rim; their tips reaching over half way to second anal spine. Pectoral extending to 

 tips of ventrals. Longest anterior dorsal ray a little longer than longest anal ray. Last ray of dorsal 

 and anal elongate, that of the anal the longer, reaching rudimentary caudal rays. Caudal rather 

 short, the lobes equal; its longest ray i^ in head. 



Sides bright silvery; top of head and snout nearly black; extreme tip of lower jaw black. 

 Two very dark brown or blackish bands run parallel along the back and upper part of sides; the 



