344 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



ACHEILOGNATHUS LANCEOLATUM (Temminck and Schlegel). 



Large specimens of A. lanceolatuhi g-enerallj have the body a little 

 more elongate than that of the other species at hand. There is no 

 dark spot at the upper edge of the gill- opening, nor is there a dark 

 band on the body. The dorsal and anal tins are low and similar in 

 coloration to those of A. rhomheum. From Lake Biwa. 



ACHEILOGNATHUS INTERMEDIUM (Temminck and Schlegel). 



A. inteTmediura has a dark, ocellate spot as large as the pupil at the 

 upper part of the gill-opening, and also a distinct lateral band. In 

 some cases the spot is very indistinct. The posterior part of the 

 band does not end so abruptly as in ^1. rhoinheuin^ but grows wider 

 and lighter near the base of the caudal fin. The dorsal fin has two 

 very evident light bands. The lower one corresponds in position to 

 that on the tin of A. rhomheum. The color of the anal fin is varialilc. 

 In some cases it is similar to the dorsal; in others there is only one 

 white band; sometimes there is so little dark color that it forms a nar- 

 row band along the middle of the fin. From Lake Biwa. 



Meamrements of AcheilognatJius rJiombeum, A. lanceolotum, and A. intermedium. 



Species. 



A. rhombcum. 



A. lanceolatum. 



A. intermedium. 



Length of body in millimeters . . 



Depth of body". 



Length of head 



Height of longest dorsal ray 



Height of longest anal ray 



Number ' (}f dorsal rays 



Number of anal rays 



Numl)er of scales in lateral line. 



Number of scales above lateral 



line 



.38 

 .25 

 .22 

 .20 

 10 

 13 

 3() 



57 

 .36 

 .24 

 .20 

 .15 

 13 

 11 

 35 



47 

 .23 

 .26 

 .18 

 .16 

 13 

 12 

 34 



1 The anterior spine-like rays are included in the above counts, as they are distinct and detached 

 from the first fully developed ray. 



BARILIUS PLATYPUS (Temminck and Schlegel). 



{Leur.ifioifi minor Schlegel.) 

 Lake Biwa. (Otaki.) 



OPSARIICHTHYS UNCIROSTRIS (Temminck and Schlegel). 

 Lake Biwa. (Otaki.) 



PSEUDORASBORA PARVA (Temminck and Schlegel) . 



{Leuciscns pnxitlii.s (Temminck and Schlegel).) 

 Lake Biwa. (Otaki.) 



