HYDROIDA. BALE. 245 



Family CAMPANULINID^E. 

 Genus THYROSCYPHUS, Allman. 



THYROSCYPHUS MARGINATUS, Bale. 



Campanularia marginata, Bale, Cat. Austr. Hydr. Zooph., 

 1884, p. 54, pi. i., fig. 2. Id., Bartlett, Geelong Nat., 

 (2), iii., 1907, p. 62, fig. - 



" Campanularia " marginata, Levinsen, Vidensk. Medd. fra 

 den naturh. Foren, 64, 1913, p. 289. 



Thyroscyphus marginatus, Bale, Proc. Roy. Soc.Vict., (n.s.), 

 xxvii., 1914, p. 91. 



The specimens, like all others hitherto observed, are with- 

 out the gonosome. 



Loc. Fifty miles south of Cape Wiles, South Australia, 

 75 fathoms. 



THYROSCYPHUS SIMPLEX (Lamouroux). 



Laomedea simplex, Lamouroux, Hist. Polyp. Cor. Flex., 

 1816, p. 206. Id., Deslongch., Encyc. Meth., Zooph., 

 1824, p. 482. 



Campanularia simplex, Bale, Cat. Austr. Hydr. Zooph., 

 1884, p. 58. 



Campanularia tridentata, Bale, Proc. Roy. Soc. Viet., 

 (n.s.), vi., 1893, p. 98, pi. iii., fig. 3. 



Sertularella tridentata, Hartlaub, Abh. Nat. Ver. Hamb., 

 xvi., 1900, p. 46, fig. 21. 



Thyroscyphus tridentatus, Hartlaub, Zool. Jahrb., xiv., 

 1901, p. 369, pi. xxi., fig. 14, pi. xxii., fig. 23. Id., 

 Ritchie, Trans. Roy. Soc. Edin., xlvii., 1909, p. 74, 

 fig. Mb. 



Thyroscyphus simplex, Billard, C. R. Acad. Sci., cxlviii., 

 1909, p. 1065; Id., Billard, Ann. Sci. Nat., Zool., (9), 

 ix., 1909, p. 312. Id., Levinsen, Vidensk. Medd. fra 

 den naturh. Foren, 64, 1913, p. 292. Id., Briggs, Rec. 

 Austr. Mus., x., 10, 1914, p. 288. 



Parascyphus simplex, Ritchie, Ann. Scot. Nat. Hist. 

 Edinb., xx., 1911, p. 160, fig. 1. 



This species, which was previously known only from 



Australia and New Zealand, has been recorded by Ritchie 



from the British coast and the South Atlantic. The present 



specimens include the gonansia, hitherto unknown. These 



, are borne on the lower part of the shoots, and, in my 



