42 



S. TAN AK A : 



7. Bregmaceros atlanticus japonicus, n. subsp. (Gadidœ.) 



Head 6i, height of body S\ in total length without caudal ; eye 

 about 4, interorbital about 3, snout 3^ in head. 



Body elongate, compressed ; highest part of body in front of the 

 middle of body; caudal well separated from vertical fins. Head 

 moderate, compressed ; eye small ; interorbital convex, its middle parts 

 almost flat ; snout short, rather pointed. Mouth subinferior, oblique, 

 parallel to ventral contour of head ; maxillary slightly enlarged and 

 posteriorly exposed, extending to vertical from the posterior rim of the 

 pupil of eye. Jaws equal, each with one row (if rather small teeth, 

 those on lower jaw being somewhat larger ; none on vomer and pala- 

 tines. Gill-membranes united forward and downward, free from isthmus ; 



Bregmaceros atlanticus japonicus Tanaka. t ype. 



pseudobranchiae undeveloped ; gill-rakers on first gill-arch very small 

 and pointed ; branchiostegals 7 in number. Cephalic appendage slender, 

 originating from occiput and scarcely extending to origin of first dorsal. 

 First dorsal inserted slightly nearer to origin of second dorsal than to tip 

 of snout and a little behind insertion of anal. Two dorsals connected by 

 a row of detached, very inconspicuous finlets, so that the dorsals appear 

 to be separated from each other at first sight ; first dorsal much higher 

 than the second, its highest ray equaling the length of head without 

 snout. Anal of 2 fins, but several rays connecting the fins higher than the 

 corresponding rays of dorsals and more or less confluent with the two 

 anals, so that there exists no marked boundary between the anals and 



