THE HYDROID ZOOPHYTES. 109 



was dredged at the south end of the Isle of Man, in August, 

 1885. 



Diphasia attenuata, Hincks. 



Sertularia rosacea, Jolinst., B. Z. 470. 

 Sertularia pinaster, var., Johnst , B. Z. 72, fig. C. D 

 Sertularia attenuata, Hincks, " On New British Hydroida," 

 Ann. N. H., October, 18G6 (3rd series), xviii, 298. 



Several large colonies of this species were dredged from 

 Hilbre Swash on May 9th, 1885. 



Diphasia pinaster y Ellis and Solander. 



Sertularia margareta, Johnston, B. Z. 7 2, 73, fig. 13. 



Mr. Byerley records this species under the name of 

 Sertularia margareta as being found at the mouth of the 

 Mersey by Mr. K. A. Tudor, and at New Brighton by 

 Mr. Marrat. Mersey (J. S. Hicks). 



Diphasia tamarisca, Linnaeus. 



Sertularia tamarisca, Johnston, B. Z., pi xiii, figs. 2, 3, 4. 



Recorded by Byerley under the name of Sertularia 

 tamarisca as having been found on the Bootle coast by Mr. 

 Tudor. 



One small piece, about an inch in height, was dredged in 

 Hilbre Swash, from ten fathoms. May 9th, 1885. 



Sertularia pumila, Linnaeus. 



Recorded by Byerley as *' having been found by Mr. Marrat 

 between Seacombe and Egremont. Not common." Mersey 

 (J. S. Hicks). Very common on Fucus, Colwyn Bay (A. 0. 

 Walker.) 



One colony showing gonothecae was dredged off the 

 south end of the Isle of Man in August, 1885. 



Found at Hilbre Island, on May 17th, with gonothecae. 



Diphasia fallax, Johnst. 



Sertularia fallax, Johnst., B. Z. 2nd ed., p. 73. 



Point of Ayr (A. 0. Walker). 



