V. '07. 18 



which is a much younger colony than the type, the siphon- 

 ozooids are not so numerous or so crowded together, but their 

 characteristic arrangement can be clearly seen. The pinnules, 

 of which there are 15 pairs, are set very obliquely on the 

 rachis, and bear 1-2 rows (in a few places 3 rows) of auto- 

 zooids. There are about 15 developed autozooids on the 

 longest pinnules, which at their bases have a width of 6 mm. 



The spicules of both specimens agree in every particular. 

 There are no spicules in the tentacles, a fact not mentioned in 

 the original description, but which I w r as able to ascertain 

 through the kindness of Mr. Jeffrey Bell in allowing me to 

 examine the type specimen in the British Museum. 



In the arrangement of the siphonozooids and autozooids, 

 the manner in which the pinnules are set on the rachis, the 

 characters of the spicules and their absence from the tentacles, 

 these specimens of Pennatula bellissima recall Pennatula 

 grandis, Ehrenberg. 



FAMILY VIRGULARIIDAE. 



Virgularia mirabilis (O. F. Mtiller). 



S. 48. 1J miles off, Clogher to Dunany, Co. Louth, 9-10 fms., 



14th February, 1902. 



~2J- miles off Drogheda Bar, 8 fms., 12th November, 

 1902. 



" Small broken specimens only were obtained of this 

 " species." S. J. HICKSON. 



Additional Records : 

 Galway Bay. 



S. 553. 10 miles E. of Bailey Lighthouse, Co. Dublin, 41-52 

 fms.; bottom temperature, 7'8 C. ; 16th August, 

 1907. 



Virgularia mirabilis has been taken several times previously 

 off the N.E. and S.W. coasts of Ireland. The records of its 

 occurrence are not numerous, but this may be due not so much 

 to the scarcity of the species as to the difficulties of its cap- 

 ture. 



FAMILY PROTOPTILlbAE. 



Protoptilum Thomson!, Kolliker (?) 



" Some pieces of a Sea-pen, too fragmentary to identify 

 " with certainty, appear to belong to this species. They 

 ''were dredged at S.E. 132, 50 miles W.N.W of 



Tearaght; Lat., K, 52 3' 30"; Long., W., 12 0' 

 " depth, 396 fms. ; 7th August, 1904." S. J. HICKSON 



