86 BRITISH HYDROID ZOOPHYTES. 



their state of quiescence by anything that may irritate 

 the surface of the Coenosarc," this marginal note appears : 



" Is there any exception ? and what 

 evidence is there that the crab has not just 

 left the shell?" P. R. 



Page XXL, first 25 lines. 



In the margin at the side of the section dealing with 

 the reproduction of a Hydroid colony; the following is 

 written : 



" In Thecaphora, buds reproductive 

 spring from Coenosarc and are protected. In 

 Athecata, buds usually developed on body, 

 but sometimes on Coenosarc, and are 

 unprotected." "Buds borne on special zooids 

 which become atrophied and then resemble 

 the capsuled gonophores of the Thecaphora." 



The latter note is more of the nature of a summary of 

 a portion of the text, than the expression of a new idea. 

 It is, however, instructive and interesting. 

 Page 24, line 14 from the top. 



With reference to the habit of Hydractinia echinata, 

 Hincks states that it occurs on univalve shells tenanted by 

 Hermit crab. A marginal note states : 



" Also on the claws of lobster." P. R. 



This is probably a unique, or at least, unusual, 

 situation for Hydractinia echinata. 



Page 103, line 5 from the top. 



Appended to the habitat of Garveia nutans, 

 is the following footnote : 



