380 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.48. 



Two interlocking spines at the angle of the preopercle, the outer on 

 the preopercle, directed outward and slightly downward, the inner 

 on the mandibular margin, directed backward and slightly upward. 

 A well-developed knob at the articulation of the maxillary. Rostral 

 spine with long free basal joint projecting slightly beyond the upper 

 lip, and half as long as the terminal joint, which reaches when de- 

 pressed to a point above the middle of the orbit; the free end is some- 

 what enlarged, laterally compressed, provided anteriorly with a lappet 

 or cirrus and posteriorly with a short fleshy process. 



Upper end of gill slit behind middle of pectoral, the slit extending 

 below the fin for more than the width of the pectoral base. 



Papillse minute, sparsely distributed everywhere on head and body. 



Measurements in hundredths of length without caudal: 



Length of maxillary (from articulation) 34 



Greatest depth of body 69 



Length of head 65 



Least interorbital width 10 



Distance between supraorbital spines 26 



Length of gill slit 22 



Basal joint of rostral spine 12 



Terminal joint of rostral spine 24 



Distance from tip of snout to dorsal -. 75 



Distance from tip of snout to anal 84 



Length from tip of snout to base of caudal in millimeters 62 



A single specimen known. 



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