FRESH-WATER FIRIIÉS FROM SIIINANO. 



Maxillary barbel longer than in Acheilognathus limbata (Schlegel) ; 

 a faint lateral band above lateral line, without shoulder spot. Four 

 or five scales between lateral line and origin of anal. In this respect 

 it resembles Acheilognathus s!iimar:iti Tanaka, but differs in 

 physiognomy and coloration. 



The species lives together with Acheilognathus limbata (see 

 below). From this fact the two species are mistaken for one and the 

 same species by most natives not only of this district, but also of 

 other parts of Japan. 



13. Acheilognathus limbata (Schlegel). 



Local name: Tanago; Tanogo; Nigaza; Kozikinigaza. 



Fight specimens, the largest being 6 cm. long as measured to 

 root of middle caudal rays. 



Maxillary barbel very short ; lateral band and shoulder spot 

 very distinct. Some of them have dermal protuberances which seem 

 to serve for nuptial ornamentation. 



14. ZacCO platypus (Schlegel). 



I-ocal name: Haya ; I lac ; Cago; Gagota ; Akazu (male); OtokoTcago (male); 

 < tnnakago (female) ; Shirahaya (female). 

 Numerous specimens, the largest being 12 cm. long as measured 

 to root of middle caudal rays. 



The nuptial ornamentation of the male is represented by horny 

 protuberances on snout, circumorbital parts, opercle, and even on 

 supra-anal parts of body and on anal and pectoral. 



Specimen. 



A 





c 



D 



Sex 



Î 

 



I 



î 



? 





47 



46 



47 



45 





9+1 + 5 



9+1+4 



9+1 + 5 



9+1 + 5 



