221 



111) Dorsal plate of urohyal low and elongated [0] (Fig.62A), or relatively high and short [1] 

 (Fig.62C). 



112) Anterior end of branchiostegal 1 not concave [0] (Fig.64C), or concave [1] (Fig.64B). 



113) Anterior end of branchiostegal 2 sharp [0] (Fig.64B), or blunt [1] (Fig.64A). 



114) Branchiostegal 3 connects with posterior ceratohyal only [0] (Fig.64A), or with both posterior 

 and anterior ceratohyals [1] (Fig.64B). 



115) Anterior end of branchiostegal 3 not concave [0] (Fig.64B), or deeply concave [1] (Fig.64D). 



116) Posterior ceratohyal short-triangular [0] (Fig.65A), or long-triangular [1] (Fig.65D) in shape. 



117) Anterior margin of anterior ceratohyal not concave [0] (Fig.65B), or concave [1] (Fig.65A). 



118) A notch on the anterior margin of anterior ceratohyal absent [0] (Fig.65D), or present [1] 

 (Fig.65C). 



119) Hyoid foramen formed by both dorsal and ventral hypohyals [0] (Fig.66A), or by ventral hy- 

 pohyal alone [1] (Fig.66B). 



120) A shallow concavity absent [0], or present [1] at the dorsal side of the ventral hypohyal and the 

 ventral side of dorsal hypohyal. 



121) A concavity at the lateral margin of basihyal absent [0] (Fig.65B). or present [1] (Fig.65A). 



122) Entopterygoid broad and relatively short [0] (Fig.68A), or narrow and relatively long [1] 

 (Fig.68D). 



123) Entopterygoid connecting with one half of the autopalatine [0], or with the posterior end of au- 

 topalatine only [1]. 



124) Ectopterygoid relatively short and broad [0], or narrow and slender [1]. 



125) Ectopterygoid partially overlapping [0] (Fig.68B), or not overlapping [1] (Fig.68D) the ento- 

 pterygoid. 



126) Dorsal margin of ectopterygoid far from [0] (Fig.68D), or close to [1] (Fig.68C) the posterior 

 end of the autopalatine. 



127) Autopalatine well [0] (Fig.68B) or poorly [1] (Fig.68D) developed. 



128) Laterally, dorsal and ventral margins of autopalatine not concave [0], or concave [1]. 



129) A notch at posteroventral margin of quadrate absent [0] (Fig.68A), or present [1] (Fig.68C). 



130) Symplectic broad [0] (Fig.68A), or slender [1] (Fig.68B). 



131) The two articulating facets at posterior margin of metapterygoid for the hyomandibula small 

 [0], or large [1]. 



132) Notch on the dorsal margin of metapterygoid deep [0], or shallow [1]. 



133) Processus basalis (basal process) of metapterygoid narrow and high [0] (Fig.67C), or broad and 

 low [1] (Fig.67A). 



134) Hyomandibula broad and relatively short [0], or narrow and relatively long [1]. 



135) A notch at the ventroanterior margin of hyomandibula absent [0] (Fig.69A), or present [1] 

 (Fig.69B). 



136) A posterior notch at ventroposterior margin of hyomandibula absent [0] (Fig.69A), or present 

 [1] (Fig.69C). 



137) A small [0] (Fig.69A), or large [1] (Fig.69C) cartilage present at ventral side of hyomandibula. 



138) Opercle short and broad [0], or long and narrow [1]. 



139) Dorsal margin of opercle straight [0], or shallowly concave [1]. 



140) Anterodorsal process of opercle broad and round [0], or narrow and sharp [1]. 



