No.r235. LIST OF JAPANESE FISHES^-JORDAN AND SNYDEH. 



755 



The C'otypes (No. O-iHl, L. S. fir. Universitv ^Muscnim) show some 

 variation in the shape of the bod\', being a littU' less dccj) than in tiic 

 tjw^ and having' a snout somewhat h\ss arched. 'Piic eve also varies 

 slightly in size. 



Tlie species is Jiamed for Richard Ruthhun. assistant secretary of 

 tlie iSmitiisonian Institution. 



MeasnTemevU of Pomacentrua rathhunl. 



LciiRtli ill millimeters 



Depth expressed in hundredtlis of leii.uth 



Dejitli of candal pedunele 



Leiigl h of head 



Willi li of interorbital .space 



Length of snout 



Diameter of orbit 



Distanee from snout to dorsal fin 



Height of longest dorsal spine 



Heigln of longest dorsal ray' 



Distance from snout to anal lin 



Height of longest anal spine 



Heiglit of longest anal ray' 



Lengtli of caudal ]>eduncie 



f candal tin- 



if pectcjral tin ■. 



from snout to ventral tin 



f ventral tin- 



Nnndier of dorsal spines 



Number of dorsal rays 



Number of anal rays 



Number of scales in lateral line 



Nmnlicr of scales between lateral line and insertion of dorsal.. 

 Number of scales between lateral line and insertion of anal 



Leugtli 

 LcTigth 

 Distanc 

 Length 



55 



■15 

 15 



s 



G 



lU 

 ;i5i 



21 



m 



■in. 

 'Ilk 



19 



32 



27 



39.1 



24 



13 



11 



11 



1 Including filaments. 



^Not including filaments 



This species is allied to J\)ni<ieentrim 'ololascens and others having 

 the soft dorsal few-rayed and with some of the rays iilamentous. 

 Having the teeth truncate at tip and in ti single row, it would be 

 referred to Bleeker's genus EiqxiiiKicentrus, a group apparently not 

 of generic value. 



43- ABUDEFDUF SEXFACIATUS (Lacepede). 



( (i/i/jihiilodoii r(vh'stl)i((f< Brevoort. ) 



Two specimens from Shinioda: ('oil. .1. ^lorrow, noticed by Pi'o- 

 fessor (rill in 1851). 



Numerous others were taken l)y us in tlu^ rociv pools oU' Misaki. 



44. CHROMIS NOTATUS (Schlegel). 



72U. Tsushima, Yokohama. 



Family LABRID^E. 



45. CHCEROPS AZURIO Jordan and Snyder. 

 {('h(rw])H japi/niciis Schlegel, not of Hoiittnyn. ) 



60y. Yokohama. 



