CALLIONYMUS COSTATUS. 



Depth of body eight times in total lengtl ength of 

 head not quite four times. Head i^ as long as broad ; eyes 

 close together, as long as the snout, ^ length of head ; gill- 

 opening reduced to a small foramen on the upper surface of 

 the head ; preopercular spine curved upward, unicuspid, not 

 ^ diameter of eye. Dorsal III, lo ; first dorsal very small, 

 longest ray measuring ^ length of head ; first ray of soft 

 dorsal longest, i length of head. Anal lO. Ventral reaching 

 beyond vent. Lateral liiie single, much developed, sending 

 off perpendicular branches above and below, the upper 

 bfcnches, 35 in number extending to the middle line of the 

 back, giving the body a ribbed appearance. Yellowish grey, 

 back finely speckled with brown ; small blackish spots above 

 and below the lateral line ; spinous dorsal blackish. 



Total length 55 millimetres. 



This new species is described from two of four specimens 

 (probably young) procured in trawl 11 miles of? Cape St. 

 Blaize in J"ne. 1898, 40 fathoms. 



