L.M.B.C. HYDROID ZOOPHYTES. 223 



SO the total record is now brought up to 87 species and 1 

 variety. 



I have arranged these in the following table so as to show 

 their distribution in the district, as has been done in pre- 

 vious reports on other groups, so that here I need only- 

 mention those that seem to call for special remark. 



In the first place, we have found several that are rare : — 

 tw^o species Hijdranthea margarica, (found growing on 

 Flustra foUacea, the habitat which Hincks gives), and 

 Campanulariafragilis, have only been found at Ilfracombe. 

 before; two others Obelia plicata and Gonothijrcea hijalina 

 are only known from the Shetland Islands ; Calijcella 

 pigmcBct, only at Tynemouth, and GonothyrcECi gracilis, 

 only at Connemara ; while several have only been found 

 before in the South, such a,s Bougaiiwillea muscus {Torqud^j) 

 Campanularia raridentata (Swanage, Brixham, Torquay), 

 Plmnularia setacea (Cornwall), and Campanidaria cali- 

 ciilata (Eamsgate, Cork;. 



Secondly, the following species have presented some 

 noteworthy points of structure, or have shown some 

 previously unrecorded character : — 



Obelia geniculata, Linnaeus. 



Specimens of this luxuriantly branched (Hincks says 

 they are sometimes sparingly branched) were found lately 

 at the Isle of Man. The branches, or in their place, two 

 extra pedicels, bearing calycles, rise from the axils of the 

 ordinary pedicels. Tendrils hke those on Gampanularia 

 angulata were fairly common on these specimens, as I have 

 also seen them on Campanularia flexuosa and Obelia 

 plicata. 



Gonothyrwa hijalina, Hincks (PI. IX, fig. 1). 



This species has not been recorded by us until now, as 

 although I have examined a good many specimens of it 

 I have always wanted to see more before saying that I 



