ERRATA. 



Page 83 note. for surpula read serpula. 



„ 183 line 13. „ Ninum „ Nei'ium, 



„ 187 lines 6 and 9 from bottom „ Fig. 15 „ Fig. 16. 



I desire to take this public opportunity of correcting an error, into which I regret much 

 I was led by a mistaken impression whi:h I received in conversation. At page 198, Vol. III. 

 of these Memoirs, I have stated that Mr. Rupert Jones had identified the Mangali crusta- 

 ceans, as Estheria minuta. This was not the fact, as will appear more fully in Mr. Jones' 

 own papers. 



T, OLDHAM. 



