218 



22) Presence of one horizontal stripe (Phoxinus neogaeus-lypt) [OJ (Fig.22A), or two horizontal 

 stripes (P. erythrogaster-type) [1] (Fig.22D), or only vertical bands (P. phoxinus-type) [2] (Fig.22F), 

 or one horizontal stripe and a few verticle bands (P. oreas-type) [3] (Fig.22B) on the lateral body. 



23) Large dark blotches absent [0] (Fig.22A), or present [1] (Fig.22B) on the dorsolateral body. 



24) Few melanophores present at the isthum [0] (Fig.28A), or more melanophores present only on 

 isthum [1] (Fig.28B), or much more melanophores present on both isthum and the anterior portion 

 of the breast [2] (Fig.28C). 



25) Melanophores absent [0] (Fig.29A), or present [1] (Fig.29B) at ventral side of caudal peduncle. 



26) Pectoral fin slightly dark [0], or much darker [1] in breeding male than in nonbreeding one. 



27) A dark region absent [0] (Fig.30C), or present [1] (Fig.30D) at base of dorsal fin. 



28) A black patch present [0]. or absent [1] at base of caudal fin. 



29) Intestine Phoxinus phoxinus-type [0] (Fig.31A-C), or P. <?os-type [1] (Fig.32A, C), or P. cum- 

 berlandensis-Vypt [2] (Fig.31G), or P. oreas-type [3] (Fig.32D). 



30) Gas bladder neither slender nor broad ("normal shape") [0], or very slender [1], or very broad 

 [2]. 



31) Anterior chamber of gas bladder about 70% [0] (Fig.33B), or about 50% [1] (Fig.34B) or almost 

 equal to [2] (Fig.33C) length of the anterior chamber. 



32) Constriction of gas bladder very short [0] (Fig.33B), or short [1] (Fig.34C), or long [2] (Fig.34B). 



33) Pneumatic duct connecting with constriction of gas bladder [0] (Fig.34B), or with anterior por- 

 tion of the posterior chamber of the gas bladder [1] (Fig.34H). 



34) Peritoneum silver [0], or dark [1] in color. 



35) Kinethmoid short [0] (Fig.35B, D), or elongated [1] (Fig.35A, C, E). 



36) Dorsal margin of kinethmoid slightly notched [0] (Fig.35D), or deeply forked [1] (Fig.35C). 



37) Posterior side of kinethmoid concave [0], or not concave [1]. 



38) A foramen absent [0] (Fig.35A-C), or present [1] (Fig.35D, E) through anterior and posterior sur- 

 faces of kinethmoid. 



39) A notch absent [0] (Fig.35B), or present [1] (Fig. 35 A) at ventral margin of kinethmoid. 



40) Supraethmoid elongated and narrow [0] (Fig.36A), or short and broad [1] (Fig.36C). 



41) Middle of lateral margin of supraethmoid convex [0] (Fig.36C, D), or not convex [11 (Fig.36A). 



42) Posterior margin of supraethmoid concave [0] (Fig.36A), or unconcave [1] (Fig.36B). 



43) Two small, sharp processes at laterior part of posterior margin of supraethmoid absent [0] 

 (Fig.36A), or present [1] (Fig.36B). 



44) Nasal bone narrow and elongated [01 (Fig.37E), or broad and relatively short [11 (Fig.37D). 



45) Supraorbital canal on nasal bone complete [0] (Fig.37B), or interrupted [1] (Fig.37A, E). 



46) Nasal bone placed over mesethmoid and lateral ethmoid [0] (Fig.37A), or over the lateral eth- 

 moid alone [1] (Fig.37B). 



47) Preethmoid small [0] (Fig.38A), or large [1] (Fig.38B). 



48) Ventral side of mesethmoid elongated and narrow [0] (Fig.39A), or broad and short [1] (Fig.39B). 



49) Mesethmoid bearing two [0] (Fig.39B), or one [1] (Fig.39A) conus. 



50) Anterior and posterior portions of ventral side of lateral ethmoid acute [01 (Fig.39D). or blunt 

 [1] (Fig.39C). 



51 ) A notch absent [0] (Fig.39C), or present [1] (Fig.39D) on dorsal margin of the medial side of la- 

 teral ethmoid. 



