96 LIVERPOOL MARINE BIOLOGY COMMITTEE REPORT. 



confined to a general supervision of Mr. Melly's investigations, 

 and some assistance in identifying the more difficult species. 



W. A. Herdman. 



The Hydroida are well represented in the neighbourhood 

 of Liverpool, and are especially abundant on the shores of 

 Hilbre Island. Former investigators in this locality have 

 paid more attention to the Zoophytes than to most other 

 groups of animals, and consequently there are comparatively 

 few species to add to the existing lists as the result of the 

 Committee's dredging investigations. Mr. Byerley, in his 

 Fauna, published in 1855, records thirty-three species, of 

 which twenty-six have been found by members of the Com- 

 mittee during 1885; fifteen of the species previously recorded 

 from this neighbourhood have not been found during 1885. 

 Dr. Sibley Hicks records thirty-eight species, including 

 six not mentioned by Byerley, in his list drawn up in 

 1880. A few localities within the L. M. B. C. District have 

 been given by Hincks, Allman, and Pennington in their 

 works on the Hydroid Zoophytes. Mr. A. 0. Walker, of 

 Chester, has furnished us with records of the species which 

 he has found in the neighbourhood. 



The large collections made by the Liverpool Marine 

 Biology Committee yielded forty-two species, eleven of which 

 had not been previously recorded from this neighbourhood. 

 Seven of the species were collected at Hilbre Island, sixteen 

 were from various parts of Liverpool Bay, seven were 

 obtained during the cruise of the " Hyaena," seven were 

 obtained at Penmaenmawr by Mr. Thompson, and thirty 

 were collected off the south end of the Isle of Man by 

 Professor Herdman. 



The classification and nomenclature of species given by 

 Mr. Hincks * have been followed. 



* History of the British Hydroid Zoophytes, Y(xn Voorst, London, 1868. 



