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Comp. Zool., Vol. XI. No. i. 



Definition of Terms Used in Description of Gorgonidae. 



Zoanthodeme: the whole stock or colony. 



Caliclc: the cell occupied b}' an individual polyp. The calicle 

 is included when it does not decidedly project above general 

 surface of zoanthodeme, and exserted when it does decidedly 

 project above general surface. 



PapillcB: the protuberances which fringe the sides of the 

 tentacles. 



Gullet: the so called "stomach" of the polyps. 



Me '^eateries: the eight soft vertical partitions which radiate 

 from gullet wall to body wall of polyps. 



Mesenterial filaments : the long, convoluted filaments which 

 extend downward from bottom of gullet into general body 

 cavity. 



Coenenchyma: the general substance of the zoanthodeme 

 outside of the calicles and not including the axis cylinder. 



Axis cylinder: the central "sclerobasic" core w^hich branches 

 and traverses the several branches of the zoanthodeme. 



