246 



EDWAED T. BROWNE. 



Table I. 



The Numerical Variation of the Tentaculocysts of 

 359 Ephyr^ collected in 1893. 



It will be seen from this table that no less than 81 speci- 

 mens (22*6 per cent.) are abnormal in possessing more or less 

 than eight tentaculocysts, and that the range of variation 

 extends from six to thirteen tentaculocysts. There are only 

 12 specimens (3*3 per cent.) with less than eight tentaculo- 

 cysts, and the remaining 69 specimens (19 per cent.) are 

 above the normal number. 



Table II. 



The Numerical Variation of the Tentaculocysts of 

 1156 Ephyrse collected in 1894. 



The second table shows in detail the variation of the 

 tentaculocysts of 1156 specimens collected in 1894. On 



