NOETH SIDE OF THE BAY OF BISCAY, AUGUST, 1906. 25 



LAFOiilD^. 



Lafoea dumosa (Fleming). 



The erect form (var. rohusta) was common at Station II., but scarce 

 at Station V. The creeping form also occurred at Station II., and on 

 Lophohelia at Station XIIL, 412 fathoms. 



The deepest record for this species is 450 fathoms, off Sombrero 

 Island, West Indies {Challenger Expedition). 



Lafoea fruticosa (M. Sars), var. gracillima, Alder. 



This species was very scarce ; just a few colonies from Stations I. 

 and II., 75 fathoms. At the second station it was growing over 

 worm-tubes. 



There appears to be a difference of opinion as to whether Lafoea 

 gracillima, Alder, and Lafoea fruticosa, Sars, are the same species or 

 distinct species. Lafoea gracillima, has its hydrotheca on a stalk which 

 has one or two very loose twists, but Lafoea fruticosa has three or four 

 distinct spiral twists. The specimens in this collection belong to 

 Alder's type, which is the type found in the English Channel, and 

 which has usually been called Lafoea fruticosa. 



Distribution. Jaderholm has recently recorded Lafoea gracillima 

 for Falkland Islands and South Georgia. 



One of the deepest records for Lafoea gracillima is 274 fathoms, ol'f 

 the Norwegian coast, 62° 30' K, 1° 56' E. (Broch, 1903). 



Lafoea pinnata, G. 0. Sars. 



Lafoea irinnata, G. 0. Sars, 1873, p. 116, Tab. IV. figs. 25-28; 

 Bonnevie, 1899, p. 69, PI. VI. fig. 1. 



Lafoea halccioides, Allman, 1874, p. 472, PL LXVI. fig. 1. 



Lictorclla halccioides, Pictet et Bedot, 1900, p. 16, PL III. figs. 4, 5. 



Lictorella pinnata, Broch, 1903; Broch, 1905, p. 11, fig. 3. 



This species was taken at Station XIIL, 412 fathoms, and was either 

 growing over Eudenclrium. rameum, or fixed to the coral Lojjhohelia. 



It was first described by G. 0. Sars, who found it on Eudendrium 

 rameum in the Hardangerfjord, on the coast of Norway. In 1874 

 Allman described a new species of Lafoea under the name of Lafoea 

 halccioides, which was found by the Poreupinc Expedition in the Faeroe 

 Channel, and this appears to me to be identical with Lafoea pinnata. 



Allman (1888), in the Eeport on the Hydroida of the Challenger 

 Expedition, considered a Hydroid from Torres Straits, North Australia, 

 to be identical with Lafoea hcdccioides from the Faeroe Channel, and on 

 account of the structure of the hydrotheca of the Australian specimen, 

 he transferred Lafoea halecioides to a new genus called Lictorclla. 



