Mean¡SD  Range 


Hydrothecae  
Length of abcauline wall  541.5¡59.4  465–650  17 
Length of free adcauline wall  230.2¡48.2  146–308  17 
Length of adnate adcauline wall  419.9¡33.2  353–463  17 
Length of adcauline wall  650.1¡67.3  554–756  17 
Ratio adnate/free adcauline wall  1.5–3.1  
Diameter at aperture  109.3¡7.5  95–119  17 
Diameter at base  62.3¡5.0  56–73  17 
Nematocysts  
Larger group  16.7¡1.3X6.3¡0.5  15.4–18.7X5.5–6.6  10 