822 " THETIS " SCIENTIFIC RESULTS. 



Campanularia rufa, Bale, Cat. Austr. Hydroid Zoophytes, 1884,. 

 p. 54, pi. i., fig. 1. 



Lictorella halecioides, AUman, 1888 (but not Lafoea halecioides^ 

 1874), Sci. Res. Rep. "Challenger" Exped., Zool. xxiii., 

 Hydroida, Part ii., p. 35, pi. xvii., figs. 1, 2. Id., Kirk- 

 patrick, Sci. Proc. Roy. Dublin Soc. (n.s.), vi., 1890, p. 608. 



Lictorella antipathes, Billard, Ann. Sci. Nat., Zool., (9), vi., 1907, 

 p. 216, fig. 1 ; Id., Billard, Op. cit., (9), ix., 1909, p. 312 :. 

 Id., Billard, Oj). cit., (9), xi., 1910, p. 6, lig. 1. 



Stations 34 and 40. 

 Many specimens of this species were obtained. Although' 

 they are much broken, the robustness of the stems, one of which 

 is 5 mm. in diameter immediately above the basal attachment, 

 indicates that some of the colonies must have exceeded by far 

 the height of four inches given by Allman. The colours of the 

 perisarc are unusual, the stems and branches, and even the 

 ultimate twigs appearing black, the hydi'othecse dark brown. 

 " Joints," due to the destruction and regeneration of successive 

 hydrothecse, are frequent on the peduncles of the hydi-othecse. 



Dimensions. — 



Ultimate twigs, diameter 011-015mm. 



,, ,, distance between hydrothecse... 0'49-0'67 ,, 



Hydrotheca,^ length (margin to internode process) 0*42-0'48 ,, 



,, diameter at mouth 0'18-0'21 ,, 



These measurements are somewhat larger than Billard's (1907,. 

 p. 216) measurements of Lamarck's type specimen, but thoy agree 

 with the same author's measurements of the "Challenger'* 

 Lafoea halecioides (1910, p. 6). 



Bernarks. — Comparison of the present specimens, identical 

 with the Lictorella halecioides of the "Challenger" Report (see 

 Billard, 1910), with specimens of Lictorella pinnata from Lat. 

 60° 6' N., 8° 14' W., in the neighbourhood where Allman's type 

 specimens of Lafoea halecioides were obtained, confirms E. T. 

 Browne's^'' surmise that Allman was mistaken in identifying 

 the Australian Lictorella with that which he had previously 

 obtained in the North Atlantic. That is to say, Lictorella 

 pinnata (Sai's), {Lafoea halecioides of " Porcupine " Report), is 

 distinct from Lictorella antipathes (Lamarck), (Lafoea halecioides 

 of "Challenger" Report). I have not been able to distinguish 

 on the fragment of a Faroe Channel specimen in my possession , 



9 The dimensions of the primary hydrotheca are given, reduplicatedL 

 margins, which may add O'l mm. to the length, being omitted. 



10 Browne — Journ. Mar. Biol. Assoc. Plymouth, viii., 1907, p. 26. 



