12 



AßT. 11. S. TANAKA. 



and ventral fins. On the side of body behind the ventral, three 

 pale broad lines below the lateral canal and one above it. Dorsals, 

 anal, caudal, and free margins of pectoral and ventral blackish ; 

 proximal parts of dorsals marked similarly as on the side of body ; 

 numerous transverse series of dark dots above the lateral canal 

 on the side of body. 



The male specimen here figured as the type is deposited in 

 the museum of the Zoological Institute. 



To sum up, the species has the following characters : — dusky 

 coloration with lighter spots ; great eye ; rather robust body ; spine 

 of first dorsal with spinules as strong as those of phantasma, and 

 projecting beyond the end of the anteriormost ray of first dorsal ; 

 large, pointed pectoral ; no caudal filament ; anal larger than 

 that of jorda7ii ; lateral canal finely sinuate in the anterior part 

 of body. 



The species is named after Mr. Owston, the well-known 

 naturalist of Yokohama. 



MEASUBEMENTS OF THE S F EC I ES. 



Total length (exclusive of parts behind dorsal notch) 



Length from dorsal notch to end of caudal 



Length of head (to first gill opening) 



Height of head behind eye 



Height of head in front of eye 



Greatest height of body (in front of the posterior end of tlie "( 

 insertion of first dorsal) / 



Long. diam. of eye 



Diameter of pupil 



Long. diam. of iris 



