419 
Note ad p. 401. According to W. K. Fisher the genus Para- 
stichaster of Koehler is not to be distinguished from the genus 
Sporasterias Perrier; he also suggests that Parastichaster Mawsoni 
Koehler is probably the same as Sporasterias spirabilis (Bell.), from 
the Falkland Islands. As both are littoral forms living among the 
roots of the large algæ, the identity of the two forms would not 
mean any doser relation between the Macquarie Island and the 
Magellanic region, a transport by means of the algæ being suffident 
explanation. 
25-X—1925. 
27* 
