372 PROCEEDINGS OF THE NATIONAL MUSEUM. voi.xxiii. 



ACENTROGOBIUS GYMNAUCHEN (Bleeker). 



Tokyo (Otaki; Kishinoiiye). 



ACENTROGOBIUS PFLAUMI Bleeker. 



Tokyo (Kishinouye). 



ABOMA LACTIPES (Hilgendorf). 



Tokyo (Otaki); Tone River (Kishinouye). 



CHiENOGOBIUS CASTANEUS (O'Shaughnessy). 



Tokyo (Otaki); Laka Biwa (Ishikawa). 



CHiENOGOBIUS MACROGNATHOS (Bleeker). 



Lake Biwa (I.shikawa; Kishinouye). 



In some of our specimens from Lake Biwa the maxillary scarcely 

 reaches the eye posteriorly, while in others it extends far past, as 

 figured ])y Bleeker. The lower jaw projects slightly beyond the 

 upper. Some individuals show scarcely a trace of dark color; others 

 have minute dark dots grouped close together, forming reticulations 

 on the upper parts of the bod}". The caudal tin has 4 dark vertical 

 bands. 



The head and nape, as far back as the thin ventral Avail of the 

 abdomen, naked; other parts of body with small scales, 52 to 60 in a' 

 lateral series. Described b}" Bleeker as scaleless. 



Dr. Van Lidth de Jeude,of the University of Leyden, kindly sends 

 us the following note concerning Bleeker's type in the Leyden museum: 



I am rather inclined to tliink that tlie specimen must have had small scales * * *. 

 A careful microscopical examination exhibited on some parts of the body scale- 

 pouches about 0.28 mm. wide, and after softly stroking the tail end with a small 

 scalpel I succeeded in loosening a small scale about 0.25 mm. wide. 



Dr. Van Lidth de Jeude also adds that it is possible that the scale 

 may have adhered to the specimen examined as a result of contact 

 with some other species. 



GOBIUS SIMILIS (Gill). 



{Rhinogobius similix Gill.) 

 Ishikawa-Ken (Kishinouye). 



CH.(ETURICHTHYS HEXANEMUS (Bleeker). 

 Lake Biwa (Ishikawa). 



TRI.ffiNOPHORICHTHYS SQUAMISTRIGATUS (Hilgendorf). 

 Tone River; Ishikawa-Ken (Kishinouye). 



