112 Vniversity of Calif ornia Publications in Zoology [Vol. U 



To corroburate the evidence of the coefficients the average 

 measurements of each proportion corresponding to each length 

 of animal are here appended : 



Interval from Tail to Vextral Gano:lion 

 69.8 per cent for animals between 24 and 26 mm. 

 70.0 per cent for animals between 22 and 24 mm. 

 69.8 per cent for animals between 20 and 22 mm. 



70.4 per cent for animals between 18 and 20 mm. 

 69.^ per cent for animals between 16 and IS mm. 



69.8 per cent for animals between 14 and 16 mm. 



71.5 per cent for animals between 12 and 14 mm. 



Length of Anterior Fin 



19.9 per cent for animals betwen 24 and 26 mm. 

 19.9 per cent for animals between 22 and 24 mm. 

 19.8 per cent for animals between 20 and 22 mm. 

 20.0 per cent for animals between 18 and 20 mm. 

 19.8 per cent for animals between 16 and 18 mm. 

 20.2 per cent for animals between 14 and 16 mm. 

 17.5 ]ier cent for animals between 12 and 14 mm. 



Width of Anterior Fin 

 2.43 per cent for animals between 24 and 26 mm. 

 2..5-T per cent for animals between 22 and 24 mm. 

 2.17 per cent for animals between 20 and 22 mm. 

 2.45 per cent for animals between 18 and 20 mm. 

 2.54 per cent for animals between 16 and 18 ram. 

 2.21 per cent for animals between 14 and 16 mm. 

 2.12 per cent for animals between 12 and 14 mm. 



Interval from Anterior Fin to Ventral Ganglion 

 1.32 per cent for animals between 24 and 26 mm. 

 1.59 per cent tor animals between 22 and 24 mm. 

 1.61 per cent for animals between 20 and 22 mm. 

 1.39 per cent for animals between 18 and 20 mm. 

 1.58 per cent for animals between 16 and 18 mm. 

 1.25 per cent for animals between 14 and 16 mm. 

 1.75 per cent for animals between 12 and 14 mm. 



liENGTH OP Posterior Fin 



24.2 per cent fo ranimals between 24 and 26 mm. 



24.3 per cent for animals between 22 and 24 mm. 



24.4 per cent for animals between 20 and 22 mm. 



25.5 per cent for animals between 18 and 20 mm. 

 25.8 per cent for animals between 16 and 18 mm. 

 24.2 per cent for animals between 14 and 16 mm. 

 23.0 per cent for animals between 12 and 14 mm. 



