318 APPENDIX. 



the spermary, and that the zoophyte was in the depau- 

 perated condition which marks the close of the breeding- 

 season"^. Earlier in the year the gonozooids would 

 probably become free., and mature their products after 

 liberation. In one instance, and in one only, the con- 

 tractile movement of the umbrella was observed. 



P. PROBOSCIDEA is a larger species than P. carnea, and is 

 known at once by its long, cylindrical, and very conspicu- 

 ous proboscis, which is opake-white in colour, and has the 

 appearance of being fluted down the sides. The tentacles, 

 which are less numerous than in the last-mentioned species, 

 are ranged in two semialternating rows one erect and of 

 considerable length, the other short, standing out from the 

 body, and placed a little behind the primary set. When 

 contracted they become very thick, and almost leaf-like 

 in form. 



The gonophores are borne at a very short distance below 

 the tentacles, and form a double ring round the body. 

 They are supported on small tubercles, and sometimes 

 number nearly a dozen. There is no apparent difference 

 between the prolific and the barren polypites. 



The exact nature of the adherent base was not deter- 

 mined ; but the polypary encircles the lower extremity of 

 the polypites. 



Hab. On Laminaria-roots, and on stones in rock-pools, 

 Capstone, Ilfracombe. 



Family Corynidffi 



Genus CORYNE, Gaertner. 



To the synonyms of this genus must be added the Haly- 

 botrys of Filippi. In a paper presented to the Royal 

 Academy of Turin, so recently as 1865, this author has 

 proposed the above name for a Mediterranean Hydroid, 

 which is nothing more or less than a very ordinary 

 member of the old and well-known genus Coryne. 



Vide the ace-omit of Syncoryne ffravata, p. 54. 



