490 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



vol. 48. 



Measurements in hundredths of length to caudal base. 



Albatross station 5031 



Dorsal rays. 

 Anal rays . 



Pores 



Gill-rakers. 



80 



70 



124 



r+8 



Length , mm j 238 



23 

 39 



6 



5 



7 



16 



7 



20 



11 



10.5 



Length, head. 



Depth, body 



Diameter, upper eye. . 

 Snout from upper eye . 

 Maxillary, eyed side . . 



Pectoral, eyed side 



Ventral, eyed side 



Length, caudal 



Height, dorsal 



Height, anal 



5041 



92 



74 



116 



7+9 



243 



21 



41 



6 



5 



5.5 



15 



7 



20 



10 



10 



5041 



87 



72 



124 



6+10 



208 



20.5 



39 



6 



4.5 



5.5 



13 



7 



20 



10 



9.5 



5041 



91 



72 



117 



7+9 



205 



22 



39 



6 



5 



5 



13 



6.5 



20 



9.5 



9.5 



5041 



91 



73 



124 



7+9 



202 



21 



40.5 



6.5 



5 



5 



16 

 7 

 20 

 10 

 10 



MICROSTOMUS KITAHARAE Jordan and Starks. 



Microstomus hitaharae Jordan and Starks, Bull. U. S. Fish Comm., vol. 32, 

 1902 (1904), p. 625, pi. 7, fig. 2. Matsushima Bay. 



Albatross stations 4816 and 4817, near Sado Island, Sea of Japan. 

 Albatross station 4832, off Tsuraga, Sea of Japan. 

 Albatross station 4842, near Dogo Island, Oki Group, Sea of Japan. 

 Albatross station 4856, off east coast of Korea, Sea of Japan. 

 Albatross station 4989, west coast of Hokkaido, Sea of Japan. 

 Albatross stations 5047 and 5048, off Matsushima Bay. 

 Albatross stations 5092 and 5094, entrance to Gulf of Tokyo. 

 M. JcitaTiarae is readily separable from M. stelleri, differing as follows, 

 the measurements expressed in hundredths of length: 





M. kitaTiarae. 



M. stelleri. 



Depth of body 



0.27 to 0.33 



0.39 to 0.41. 



D., 86 to 91; A., 70 to 74. 



0.13 to 0.1G, more pointed. 



Rounded. 



Concave. 



Tough, leathery. 



Strong. 



With a low curve. 



Poorly imbricate. 



116 to 124; accessory scales 



about pores. 

 Naked. 



Fin rays 



D., 84 to 99; A., 75 to 82 



Length of pectoral 



0.10 to 0.14, more rounded 



Doubly truncate 



Caudal 



Dorsal outline of head 



Skin, especially on fin rays. . . 

 Fin rays 



Straight or convex 



Thin 



Weak 



Lateral line 



Straight 



Scales 



Imbricate 



Pores 



92 to 96; no accessory scales 



about pores. 

 Scaly 



Eye-ball 







Lower pharyngeals as in Limanda. 



The change from the slender young with large eyes to the more 

 robust adult with smaller eyes is especially well marked in this 

 species. 



The young have 3 or 4 irregular dark spots along the lateral line, 

 5 below base of dorsal and 4 or 5 above base of anal; about 9 spots 

 on dorsal rays, about 7 on anal rays, with numerous smaller ones. 

 These spots are not ocellated as in the young of M. stelleri. The 

 spots disappear in the adult. In all specimens the caudal and the 

 pectoral of eyed side are black toward their tips. 



