Zoology. 247 
panularians as Leptomeduse, Yet in the primary sub-divisions of 
the Craspedota the classification adopted by Heckel is an advance 
The position of the Trachynemide and Cu- 
It seems to us that Heckel has needlessly increased the number 
b-g 
by another: and what is among Craspedota, a family, a sub- 
mily, 4 genus or a sub-genus 
It is incredible that Hackel with his great knowledge of Medu- 
Narcomeduse, 
Among the Cladonemide the new genus Ctenaria is held by 
Hecke] to be the most closely allied of all Craspedota to the 
Ctenopherm. At first sight this appears quite true, but if we 
