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THE FISHES OF JAPAN. 
—__+>o++_. 
I. Cottus pollux Giinther, (Cottidze. ) 
Plate 1, fig. 2 and 3. 
Kajika. 
Cottus pollux Giinther, Ann. Mag. Nat. Hist., Ser. 4, XII, 1873, p. 240; Otaru in 
Hokkaido.—Jordan and Starks, Proc. U. S. Nat. Mus., XXVII, 1904, p. 267; 
Tama River at Tachikawa near Tokyo ; Sumida River at Tokyo ; Kitakami 
River near Morioka; Kinu River at Utsunomiya; Niigata, Prov. Kchigo ; 
Aomori ; Kamashiro. 
Cottus hilgendorfi Steindachner and Déderlein, Beitr. zur Kennt. d, Fische Japan’s, ITI, 
1884, p. 40; IV, pl. IV ; near Tokyo. 
Habitat.—Fresh water ; Hokkaido to Kiusiu. 
Head 34, height of body 4 in total length without caudal. Eye 42, interorbital 
6, snout 33 in head. D.IX—18; A. De Be NV TS Ae 
HAR me iB Ul Be 
ASH (3,7 xR) 

EA vf? Se Hk 
BK BE. How B= sy 
ASAI; SEB); Oy at EM); ova y > (4S): ¥ %aF (8 
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FA WEREATLUS) sv oF (SIRE); » 7(IE RR) ; 7 AFA WEE ) 
AAP (FOMAGAMT); Vv za > (PERTTI) 
AY. Fayy 2.8 vy an 
med. BOK LEC, ALIA SH Lb IZ IUIN IC EEE 
ie EMG CPR % )1A IR O = (FO —, aE OM Lao—Ts >, HE IB 
OM MAS —, HIREIOAE, WEO={k=70—1; b, BBE CT, 
i — BBS UK, SG ME 3 + DOE, HERES Uk, H&E (3 TEARE, WE 1S — 
PRE O OK HE Sb Ae 2 

